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Artykuły w czasopismach na temat „Electron-Ion Collider (EIC)”

Autor: Grafiati
Data publikacji: 30 listopada 2024
Data aktualizacji: 31 lipca 2025

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1

Oliveira, C. P., D. Hadjimichef, and M. V. T. Machado. "Compton-like dark photon production in electron–nucleus collisions." Journal of Physics G: Nuclear and Particle Physics 49, no. 3 (2022): 035001. http://dx.doi.org/10.1088/1361-6471/ac3dcc.

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Abstract The Compton-like production of massive dark photons is investigated in ultrarelativistic electron–ion collisions by considering the kinetic mixing between the dark photon and the standard model photon. The quasi-real photons in the heavy ion are described by the equivalent photon approximation, and the model is employed to calculate the integrated cross section and event rates as a function of the dark photon mass, m γ′, and mixing parameter, ɛ. Predictions are shown for electron–ion colliders (EICs) in the mass range 100 ⩽ m γ′ ⩽ 500 MeV. Numerical results are provided within the kin
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Banks, Michael. "Electron-ion collider hits milestone." Physics World 37, no. 5 (2024): 16ii. http://dx.doi.org/10.1088/2058-7058/37/05/18.

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Qiu, Jian-Wei. "Electron-Ion Collider — Taking us to the Next QCD Frontier." International Journal of Modern Physics: Conference Series 37 (January 2015): 1560020. http://dx.doi.org/10.1142/s2010194515600204.

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In this talk, I demonstrate that the proposed Electron-Ion Collider (EIC) will be an ideal and unique future facility to address many overarching questions about QCD and strong interaction physics at one place. The EIC will be the world's first polarized electron-proton (and light ion), as well as the first electron-nucleus collider at flexible collision energies. With its high luminosity and beam polarization, the EIC distinguishes itself from HERA and the other fixed target electron-hadron facilities around the world. The EIC is capable of taking us to the next QCD frontier to explore the gl
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GUZEY, VADIM. "3D IMAGING OF SEA QUARKS AND GLUONS AT AN ELECTRON-ION COLLIDER." International Journal of Modern Physics: Conference Series 04 (January 2011): 1–8. http://dx.doi.org/10.1142/s2010194511001504.

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We outline key objectives and capabilities of an Electron-Ion Collider (EIC) — a high-energy and high-luminosity electron-proton/nucleus collider with polarized electron and proton beams. One of goals of a future EIC is to map the 3D (in configuration and momentum spaces) structure of sea quarks and gluons in the nucleon and nuclei. We briefly present and discuss key observables and measurements pertaining to the program of 3D imaging at an EIC.
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5

Nadel-Turonski, P. "Spin Physics at the Electron–Ion Collider (EIC)." Acta Physica Polonica B Proceedings Supplement 18, no. 1 (2025): 1. https://doi.org/10.5506/aphyspolbsupp.18.1-a43.

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Staśto, Anna. "The physics of the EIC." EPJ Web of Conferences 296 (2024): 01032. http://dx.doi.org/10.1051/epjconf/202429601032.

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In this presentation I will give brief overview of the main physics topics which will be explored at the new Deep Inelastic Scattering facility, the Electron Ion Collider (EIC), planned for the construction at Brookhaven National Laboratory in the United States.
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Li, Xuan, Ivan Vitev, Melynda Brooks, et al. "A New Heavy Flavor Program for the Future Electron-Ion Collider." EPJ Web of Conferences 235 (2020): 04002. http://dx.doi.org/10.1051/epjconf/202023504002.

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The proposed high-energy and high-luminosity Electron–Ion Collider (EIC) will provide one of the cleanest environments to precisely determine the nuclear parton distribution functions (nPDFs) in a wide x–Q2 range. Heavy flavor production at the EIC provides access to nPDFs in the poorly constrained high Bjorken-x region, allows us to study the quark and gluon fragmentation processes, and constrains parton energy loss in cold nuclear matter. Scientists at the Los Alamos National Laboratory are developing a new physics program to study heavy flavor production, flavor tagged jets, and heavy flavo
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8

Yang, Shuailiang, Qi Xu, Yateng Zhang та Xiaoyu Wang. "The Collins Asymmetry in Λ Hyperon Produced SIDIS Process at Electron–Ion Colliders". Symmetry 15, № 4 (2023): 841. http://dx.doi.org/10.3390/sym15040841.

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We investigate Collins asymmetry in the Λ hyperon produced semi-inclusive deep inelastic scattering (SIDIS) process based on the kinematical region of Electron-ion collider in China (EicC) and Electron–ion collider (EIC) within the transverse momentum dependence (TMD) factorization framework at next-to-leading-logarithmic order. The asymmetry is contributed by the convolution of the target proton transversity distribution function and the Collins function of the final-state Λ hyperon. The TMD evolution effect of the corresponding parton distribution functions (PDFs) and fragmentation functions
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9

Li, Xuan, Eric Renner, Ming Liu, et al. "Fast timing silicon R&D for the future Electron-Ion Collider." EPJ Web of Conferences 316 (2025): 07003. https://doi.org/10.1051/epjconf/202531607003.

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The proposed Electron-Ion Collider (EIC) will utilize high- luminosity high-energy electron+proton (e + p) and electron+nucleus (e + A) collisions to solve several fundamental questions including searching for gluon saturation and studying the proton/nuclear structure. Complementary to the ongoing EIC project detector technical prototype carried out by the ePIC collaboration, a Depleted Monolithic Active Pixel Sensor (i.e., MALTA2) based fast timing silicon tracking detector (FMT) has been proposed to provide additional hits for track reconstruction in the forward region at the EIC to improve
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10

Kim, Yongjun. "Simulation study of Dual-Readout Calorimeter for a forward calorimeter at the Electron-Ion Collider." EPJ Web of Conferences 276 (2023): 05006. http://dx.doi.org/10.1051/epjconf/202327605006.

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The Electron-Ion Collider (EIC) is a future particle accelerator to be built at the Brookhaven National Laboratory, and the primary purpose of experiments at the EIC is to resolve the question of partonic structure of nucleons and nuclei. To achieve the physics goals of the EIC, a hadron calorimeter of high energy resolution is required at forward rapidity. A Dual-readout Calorimeter (DRC) which has been developed for future collider experiments is considered as an upgrade option of the forward hadron calorimeter for the ECCE experiment at the EIC. The DRC consisting of two types of optical fi
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11

Zheng, Liang, E. C. Aschenauer, J. H. Lee, Bo-Wen Xiao, and Zhong-Bao Yin. "Measuring Gluon Sivers Function at a Future Electron-Ion Collider." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860021. http://dx.doi.org/10.1142/s2010194518600212.

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In this work, we present a systematic study on the feasibility of probing the largely unexplored gluon Sivers function (GSF) based on the open charm production, charged dihadron and dijet method at a future high energy, high luminosity Electron-Ion Collider (EIC). Sivers function describes the anisotropy of parton distributions inside a transversely polarized nucleon in the momentum space and provides us a complete picture of the 2+1D structure of the nucleons. It is proposed that the GSF can be studied through the single spin asymmetry (SSA) measurement in the photon-gluon fusion channel with
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12

Radici, Marco. "Electron Ion Collider: 3D-Imaging the Nucleon." EPJ Web of Conferences 182 (2018): 02062. http://dx.doi.org/10.1051/epjconf/201818202062.

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The Electron Ion Collider (EIC) is the project for a new US-based, high-energy, high-luminosity facility, capable of a versatile range of beam energies, polarizations, and ion species. Its primary goal is to precisely image quarks and gluons and their interactions inside hadrons, in order to investigate their confined dynamics and elucidate how visible matter is made at its most fundamental level. I will introduce the main physics questions addressed by such a facility, and give some more details on the topic of Transverse Momentum Dependent parton distributions (TMDs).
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13

Radici, Marco. "Electron Ion Collider: 3D-Imaging the Nucleon." EPJ Web of Conferences 182 (2018): 02103. http://dx.doi.org/10.1051/epjconf/201818202103.

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The Electron Ion Collider (EIC) is the project for a new US-based, high-energy, high-luminosity facility, capable of a versatile range of beam energies, polarizations, and ion species. Its primary goal is to precisely image quarks and gluons and their interactions inside hadrons, in order to investigate their confined dynamics and elucidate how visible matter is made at its most fundamental level. I will introduce the main physics questions addressed by such a facility, and give some more details on the topic of Transverse Momentum Dependent parton distributions (TMDs).
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14

Scimemi, Ignazio. "A Short Review on Recent Developments in TMD Factorization and Implementation." Advances in High Energy Physics 2019 (May 13, 2019): 1–17. http://dx.doi.org/10.1155/2019/3142510.

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In the latest years the theoretical and phenomenological advances in the factorization of several collider processes using the transverse momentum dependent distributions (TMD) have greatly increased. I attempt here a short resume of the newest developments discussing also the most recent perturbative QCD calculations. The work is not strictly directed to experts in the field and it wants to offer an overview of the tools and concepts which are behind the TMD factorization and evolution. I consider both theoretical and phenomenological aspects, some of which have still to be fully explored. It
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15

Deshpande, A. "Science and status of the Electron Ion Collider." International Journal of Modern Physics E 26, no. 01n02 (2017): 1740007. http://dx.doi.org/10.1142/s0218301317400079.

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The US Nuclear Science Advisory Committee (NSAC) recently recommended the construction of a high-luminosity, high-energy Electron Ion Collider (EIC), with polarized beams capable of colliding polarized electrons with polarized proton and light ion beams, and with any nucleus. The [Formula: see text] range between 40[Formula: see text]GeV and 140[Formula: see text]GeV, and luminosity range from [Formula: see text] were recommended. It is anticipated that under the current guidance from the DOE, the collider could become operational in the second half of the 2020’s. This paper summarizes its sci
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16

Suresh, Karthik, Neeltje Kackar, Luke Schleck, and Cristiano Fanelli. "Towards a RAG-based summarization for the Electron Ion Collider." Journal of Instrumentation 19, no. 07 (2024): C07006. http://dx.doi.org/10.1088/1748-0221/19/07/c07006.

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Abstract The complexity and sheer volume of information — encompassing documents, papers, data, and other resources — from large-scale experiments demand significant time and effort to navigate, making the task of accessing and utilizing these varied forms of information daunting, particularly for new collaborators and early-career scientists. To tackle this issue, a Retrieval Augmented Generation (RAG)-based Summarization AI for EIC (RAGS4EIC) is under development. This AI-Agent not only condenses information but also effectively references relevant responses, offering substantial advantages
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17

Fanelli, C. "Design of detectors at the electron ion collider with artificial intelligence." Journal of Instrumentation 17, no. 04 (2022): C04038. http://dx.doi.org/10.1088/1748-0221/17/04/c04038.

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Abstract Artificial Intelligence (AI) for design is a relatively new but active area of research across many disciplines. Surprisingly when it comes to designing detectors with AI this is an area at its infancy. The electron ion collider is the ultimate machine to study the strong force. The EIC is a large-scale experiment with an integrated detector that extends for about ±35 meters to include the central, far-forward, and far-backward regions. The design of the central detector is made by multiple sub-detectors, each in principle characterized by a multidimensional design space and multiple
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18

Kumar, Shyam, Annalisa Mastroserio, and Domenico Elia. "Tracking performance studies for the Experimental Setup at the Electron-Ion Collider." EPJ Web of Conferences 270 (2022): 00027. http://dx.doi.org/10.1051/epjconf/202227000027.

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The US Electron-Ion Collider (EIC) is a future facility to be built at the Brookhaven National Laboratory (BNL) to study the collisions of polarized electrons with polarized protons and ions. It will provide the answers to fundamental questions on quark and gluon interactions such as: how colored partons and colorless jets travel in the nuclear medium, the properties of the state of matter in high gluon density (low-x) regime, distribution of quarks, gluons, and their spin inside a nucleon. EIC is expected to run at the luminosity of 1032-1034 cm-2 sec-1 and center-of-mass energy 20-140 GeV [1
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19

Mkrtchyan, Hamlet, Hrachya Marukyan, Arthur Mkrtchyan, et al. "Lead Tungstate Electromagnetic Calorimeter Prototype Built in AANL for EIC." EPJ Web of Conferences 320 (2025): 00049. https://doi.org/10.1051/epjconf/202532000049.

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We present design and characteristics of prototype of electromagnetic calorimeter (EmCal) for the Electron-Ion Collider (EIC) which was designed and built in A.I. Alikhanyan National Science Laboratory (AANL). Electromagnetic Calorimeter (EmCal) based on lead tungstate (PbWO4) crystals is proposed to be a key element of particle identification system of EIC. A prototype of EmCal was designed, constructed and tested with cosmic muons. It consists of 16 PbWO4 crystals arranged in a 4×4 matrix. The results confirm conclusions of other groups in the EIC collaboration that the quality of crystals p
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20

Qiang, J., Y. Hao, Y. Luo, C. Montag, D. Xu, and F. Willeke. "Strong-strong simulations of coherent beam-beam effects in the EIC." Journal of Physics: Conference Series 2420, no. 1 (2023): 012060. http://dx.doi.org/10.1088/1742-6596/2420/1/012060.

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Abstract The high luminosity electron ion collider (EIC) will provide great opportunities in nuclear physics study and is under active design. The coherent effects due to the beam-beam interaction of two colliding beams can cause beam size blow-up and degrade the luminosity in the EIC. In this paper, we report on the study of coherent beam-beam effects in the EIC design using self-consistent strong-strong simulations. These simulations show the coherent dipole and quadrupole mode instabilities in the tune working point scan and bunch intensity scan.
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21

Higinbotham, D. W. "EIC detector overview." Journal of Instrumentation 17, no. 02 (2022): C02018. http://dx.doi.org/10.1088/1748-0221/17/02/c02018.

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Abstract The Electron Ion Collider will have two interaction regions that can be instrumented with detectors. The first region will be instrumented as part of the project and needs to be capable of delivering the physics that has been outlined by the National Academy of Sciences and ready at the start of beam commissioning near the end of this decade. Plans for a second complementary detector to be located at a second interaction region are already in progress and will hopefully come to fruition just few years after the first detector comes online. While the basic parameters of these detectors
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22

Xu, D., Y. Luo, J. Scott Berg, et al. "Detector solenoid compensation in the EIC electron storage ring." Journal of Physics: Conference Series 2420, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2420/1/012012.

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Abstract The Electron-Ion Collider (EIC) uses crab cavities to restore the geometrical luminosity loss associated with the large crossing angle. Due to space limitations, the detector solenoid cannot be compensated locally. This paper presents the lattice design to compensate the detector solenoid effects without interfering with the crab cavities. Skew quadrupoles are employed to avoid additional crab cavities. The correction scheme is checked by beam-beam simulation.
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23

Shi, Zhaozhong, Craig Woody, Ian Delk, and John Lajoie. "Development of Future Electromagnetic Calorimeter Technologies and Applications for the Electron-Ion Collider with GEANT4 Simulations." EPJ Web of Conferences 276 (2023): 05001. http://dx.doi.org/10.1051/epjconf/202327605001.

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The Electron-Ion Collider (EIC) is a future collider planned to be built at BNL in about a decade. It will provide physicists with high luminosity and highly polarized beams with a wide range of nuclei species at different energies, covering an extensive kinematic range. The EIC physics goals include measuring the Generalized Parton Distribution (GPD) from Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) experiments, performing precision 3D imaging of the nuclei structure, studying color confinement and hadronization mechanisms, and understanding the spin str
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24

Surrow, B. "Low-x physics at a future electron-ion collider (EIC) facility." Journal of Physics: Conference Series 110, no. 2 (2008): 022049. http://dx.doi.org/10.1088/1742-6596/110/2/022049.

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25

Royon, Christophe, and Cristian Baldenegro. "Diffraction and photon exchange processes at the LHC and parton saturation." International Journal of Modern Physics A 35, no. 08 (2020): 2030004. http://dx.doi.org/10.1142/s0217751x20300045.

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We present a review of the recent theoretical and experimental developments related to the field of diffraction, parton saturation, and forward physics. We first discuss our present understanding of the proton structure in terms of quarks and gluons, the degrees of freedom of quantum chromodynamics. We then focus on some of the main results on diffraction at the HERA electron–proton collider in DESY, Germany, at the Tevatron proton–antiproton collider at Fermilab, Batavia, US, and at the CERN Large Hadron Collider (LHC) proton–proton and nucleus–nucleus collider, which is located in Geneva, Sw
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26

Marx, D., JS Berg, Y. Cai, et al. "Designing the EIC electron storage ring lattice for a wide energy range." Journal of Physics: Conference Series 2420, no. 1 (2023): 012010. http://dx.doi.org/10.1088/1742-6596/2420/1/012010.

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Abstract The Electron-Ion Collider (EIC) will collide electrons with hadrons at center-of-mass energies up to 140 GeV (in the case of electron-proton collisions). A 3.8-kilometer electron storage ring is being designed, which will store electrons with a range of energies up to 18 GeV for collisions at one or two interaction points. At energies up to 10 GeV the arcs will be tuned to provide 60 degree phase advance per cell in both planes, whereas at top energy of 18 GeV a 90 degree phase advance per cell will be used, which largely compensates for the horizontal emittance increase with energy.
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Luo, Y., D. Xu, Y. Hao, et al. "Summary of numerical noise studies for Electron-Ion Collider strong-strong beam-beam simulation." Journal of Physics: Conference Series 2420, no. 1 (2023): 012008. http://dx.doi.org/10.1088/1742-6596/2420/1/012008.

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Abstract The Electron-Ion Collider (EIC) presently under construction at Brookhaven National Laboratory will collide polarized high energy electron beams with hadron beams with design luminosities up to 1 × 1034cm−2s−1 in center mass energy range of 20-140 GeV. We studied the planned electron-proton collisions using a Particle-In-Cell (PIC) based Poisson solver in strong-strong beam-beam simulation. We observed a much larger proton emittance growth rate than in weak-strong simulation. To understand the numerical noise and its impact on strong-strong simulation results, we carried out extensive
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He, X. "Ring Imaging Cherenkov Detector Technologies for Particle Identification in the Electron-Ion Collider Experiments." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860080. http://dx.doi.org/10.1142/s2010194518600807.

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In the proposed Electron-Ion Collider (EIC) experiments, particle identification (PID) of the final state hadrons in the semi-inclusive deep inelastic scattering allows the measurement of flavor-dependent gluon and quark distributions inside nucleons and nuclei. The EIC PID consortium (eRD14 Collaboration) has been formed for identifying and developing PID detectors using Ring Imaging Cherenkov (RICH) techniques for the EIC experiments. A modular Ring Imaging Cherenkov (mRICH) detector has been designed for particle identification in the momentum coverage from 3 GeV/c to 10 GeV/c. The mRICH de
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Luo, Y., I. Blackler, M. Blaskiewicz, et al. "Fine decoupling test and simulation study to maintain a large transverse emittance ratio in hadron storage rings." Journal of Physics: Conference Series 2420, no. 1 (2023): 012009. http://dx.doi.org/10.1088/1742-6596/2420/1/012009.

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Abstract In previous and existing hadron storage rings, the horizontal and vertical emittances are normally the same or very close. For the Hadron Storage Ring (HSR) of the Electron-Ion Collider (EIC), the design proton transverse emittance ratio is 10:1. To maintain this large emittance ratio, we need to have an online fine decoupling system to prevent transverse emittance exchange. For this purpose, we carried out fine decoupling experiments in the Relativistic Heavy Ion Collider (RHIC) and reviewed its previous operational data. Analytical prediction and numerical simulation are preformed t
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30

Poblaguev, A. A. "Polarization Measurements of p↑ and 3He↑ Beams at RHIC and Future EIC Using the Polarized Atomic Hydrogen Gas Jet Target." Universe 10, no. 1 (2024): 32. http://dx.doi.org/10.3390/universe10010032.

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At the Relativistic Heavy Ion Collider (RHIC), the Polarized Atomic Hydrogen Gas Jet Target polarimeter (HJET) is employed for the precise measurement of the absolute transverse (vertical) polarization of proton beams, achieving low systematic uncertainties of approximately σPsyst/P≤0.5%. The acquired experimental data not only facilitated the determination of single AN(t) and double ANN(t) spin analyzing powers for 100 and 255 GeV proton beams, but also revealed a non-zero Pomeron spin-flip contribution through a Regge fit. Preliminary results obtained for forward inelastic p↑p and elastic p↑
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Tong, Xuan-Bo, Bo-Wen Xiao, and Yuan-Yuan Zhang. "Harmonics of parton saturation in inclusive and diffractive Lepton-jet correlation at EIC." EPJ Web of Conferences 296 (2024): 16004. http://dx.doi.org/10.1051/epjconf/202429616004.

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We study the harmonic coefficient of both inclusive and diffractive azimuthal angle dependent lepton-jet correlations in Hadron-Electron Ring Accelerator and the future electron-ion collider. Numerical calculations for inclusive and diffractive harmonics and the ratio of harmonics in e + Au and e + p reveal their strong discriminating power for non-saturation model and saturation model. Moreover, we demonstrate that the t-dependent diffractive harmonics are innovative observables for nuclear density profile.
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32

Guskov, Alexey, Amaresh Datta, Anton Karpishkov, Igor Denisenko, and Vladimir Saleev. "Probing Gluons with the Future Spin Physics Detector." Physics 5, no. 3 (2023): 672–87. http://dx.doi.org/10.3390/physics5030044.

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In this paper, we review the physics studies to be performed with the Spin Physics Detector (SPD) at the Nuclotron-based Ion Collider fAcility (NICA) which is a multi-purpose experiment designed to study nucleon spin structure in the three dimensions. With capabilities to collide polarized protons and deuterons with center-of-mass energy up to 27 GeV and luminosity up to 1032cm−2s−1 for protons (an order of magnitude less for deuterons), the experiment is considered to allow measurements of cross-sections and spin asymmetries of hadronic processes sensitive to the unpolarized and various polar
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Fanelli, C., and A. Mahmood. "Artificial Intelligence for imaging Cherenkov detectors at the EIC." Journal of Instrumentation 17, no. 07 (2022): C07011. http://dx.doi.org/10.1088/1748-0221/17/07/c07011.

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Abstract Imaging Cherenkov detectors form the backbone of particle identification (PID) at the future Electron Ion Collider (EIC). Currently all the designs for the first EIC detector proposal use a dual Ring Imaging CHerenkov (dRICH) detector in the hadron endcap, a Detector for Internally Reflected Cherenkov (DIRC) light in the barrel, and a modular RICH (mRICH) in the electron endcap. These detectors involve optical processes with many photons that need to be tracked through complex surfaces at the simulation level, while for reconstruction they rely on pattern recognition of ring images. T
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34

Latif, Imran, Shigeki Misawa, and Alexandr Zaytsev. "Finalizing Construction of a New Data Center at BNL." EPJ Web of Conferences 251 (2021): 02069. http://dx.doi.org/10.1051/epjconf/202125102069.

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Computational science, data management and analysis have been key factors in the success of Brookhaven National Laboratory’s scientific programs at the Relativistic Heavy Ion Collider (RHIC), the National Synchrotron Light Source II (NSLS-II), the Center for Functional Nanomaterials (CFN), and in biological, atmospheric, and energy systems science, Lattice Quantum Chromodynamics (LQCD) and Materials Science, as well as our participation in international research collaborations, such as the ATLAS experiment at Europe’s Large Hadron Collider (LHC) at CERN (Switzerland) and the Belle II experimen
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35

Morreale, Astrid. "Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider." Universe 5, no. 5 (2019): 98. http://dx.doi.org/10.3390/universe5050098.

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Quarks and gluons are the fundamental constituents of nucleons. Their interactions rather than their mass are responsible for 99 % of the mass of all visible matter in the universe. Measuring the fundamental properties of matter has had a large impact on our understanding of the nucleon structure and it has given us decades of research and technological innovation. Despite the large number of discoveries made, many fundamental questions remain open and in need of a new and more precise generation of measurements. The future Electron Ion Collider (EIC) will be a machine dedicated to hadron stru
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36

Gardner, S., R. Tyson, D. Glazier, and K. Livingston. "Object condensation for track building in a backward electron tagger at the EIC." Journal of Instrumentation 19, no. 05 (2024): C05052. http://dx.doi.org/10.1088/1748-0221/19/05/c05052.

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Abstract At the Electron Ion Collider, quasi-real photoproduction measurements involve tracking scattered electrons at small angles relative to the beamline. These electrons act as effective beams of tagged almost-real photons, with a high flux compared to larger Q2 interactions. However, the proximity of the detector to the electron beam results in a very high flux of electrons from the bremsstrahlung process (about 10 electrons per 12 ns electron/ion bunch crossing over an area of approximately 100 cm2). Consequently, the tracking detector systems experience high occupancy. To address this,
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37

Sayed, Hisham Kamal, S. A. Bogacz, and G. Krafft. "Design studies for the next generation electron ion colliders." International Journal of Modern Physics A 29, no. 09 (2014): 1450053. http://dx.doi.org/10.1142/s0217751x14500535.

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The next generation Electron Ion Collider (EIC) at Thomas Jefferson National Accelerator Facility (JLAB) utilizes a figure-8 shaped ion and electron rings. EIC has the ability to preserve the ion polarization during acceleration, where the electron ring matches in footprint with a figure-8 ion ring. The electron ring is designed to deliver a highly polarized high luminous electron beam at interaction point (IP). The main challenges of the electron ring design are the chromaticity compensation and maintaining high beam polarization of 70% at all energies 3–11 GeV without introducing transverse
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38

Altamura, Anna Rita. "Silica aerogel characterization for the ePIC dRICH detector." EPJ Web of Conferences 314 (2024): 00033. https://doi.org/10.1051/epjconf/202431400033.

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The ePIC detector is specifically designed to address the entire physics program at the Electron-Ion Collider (EIC) and features several subdetectors, including the dual-radiator Ring Imaging Cherenkov (dRICH) detector for high-momentum particle identification. Silica aerogel is chosen as the solid radiator due to its crucial optical properties. Ongoing research aims to optimize these characteristics, focusing on the transmittance measurements of aerogel tiles with varying refractive indices and the associated measurement setup.
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39

Klest, Henry T. "A Compact TPC for the sPHENIX Experiment." Journal of Physics: Conference Series 2374, no. 1 (2022): 012147. http://dx.doi.org/10.1088/1742-6596/2374/1/012147.

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The sPHENIX detector to be installed at RHIC in 2022 is designed to precisely measure jets, jet correlations, and dilepton pairs in heavy-ion collisions. With these measurements in mind, sPHENIX will employ a compact TPC covering 20cm < r < 78 cm and |η| < 1.1 as the central tracker. Utilizing an optimized Ne-CF4 gas mixture, zigzag readout pads, a 1.4 T solenoid, and a modified SAMPA chip for streaming readout, the TPC will provide a position resolution sufficient for measuring target observables in a high event rate environment. The sPHENIX TPC, with some modifications, could be a m
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40

Xu, D., Y. Luo, D. Holmes, et al. "Beam-beam interaction for tilted storage rings." Journal of Physics: Conference Series 2420, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2420/1/012011.

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Abstract In the Electron-Ion Collider (EIC) design, to avoid vertical orbit bumps in the Electron Storage Ring (ESR) at some crossing points with Hadron Storage Ring (HSR) to preserve the electron polarization, we plan to tilt the ESR plane by 200 μrad with an axis connecting IP6 and IP8. In this article, we study the beam-beam interaction when two rings are not in the same plane. The Lorentz boost formula is derived and the required vertical crabbing strength is calculated to compensate the dynamic effect. The beam-beam simulations are performed to validate the theory.
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41

Li, Xuan. "Exploration of hadronization through heavy flavor production at the future Electron-Ion Collider." EPJ Web of Conferences 296 (2024): 16001. http://dx.doi.org/10.1051/epjconf/202429616001.

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The future Electron-Ion Collider will utilize high-luminosity highenergy electron+proton (e + p) and electron+nucleus (e + A) collisions to solve several fundamental questions in the high energy nuclear physics field. Heavy flavor products play an important role in constraining the initial-state nucleon/nucleus parton distribution functions especially in the high and low Bjorken-x (xBJ) region and exploring the final-state parton propagation and hadronization processes under different nuclear medium conditions. Latest simulation studies of heavy flavor hadron and jet measurements with the EIC
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42

Arratia, Miguel, Bruce Bagby, Peter Carney, et al. "Beam Test of the First Prototype of SiPM-on-Tile Calorimeter Insert for the EIC Using 4 GeV Positrons at Jefferson Laboratory." Instruments 7, no. 4 (2023): 43. http://dx.doi.org/10.3390/instruments7040043.

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We recently proposed a high-granularity calorimeter insert for the Electron-Ion Collider (EIC) that uses plastic scintillator tiles read out by SiPMs. Among its features are an ASIC-away-from-SiPM strategy for reducing cooling requirements and minimizing space use, along with employing 3D-printed frames to reduce optical crosstalk and dead areas. To evaluate these features, we built a 40-channel prototype and tested it using a 4 GeV positron beam at Jefferson Laboratory. The measured energy spectra and 3D shower shapes are well described by simulations, confirming the effectiveness of the desi
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43

Arratia, Miguel, Luis Garabito Ruiz, Jiajun Huang, Sebouh J. Paul, Sean Preins, and Miguel Rodriguez. "Studies of time resolution, light yield, and crosstalk using SiPM-on-tile calorimetry for the future Electron-Ion Collider." Journal of Instrumentation 18, no. 05 (2023): P05045. http://dx.doi.org/10.1088/1748-0221/18/05/p05045.

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Abstract We recently proposed a high-granularity calorimeter insert for the Electron-Ion Collider (EIC) that is based on plastic scintillator tiles readout with silicon photomultipliers. In this work, we concretize its design by characterizing its building blocks with measurements of light yield, optical crosstalk, and timing resolutions using cosmic-rays, an LED, and a beta source. We also compared two approaches for the optical isolation of cells: “megatiles” with grooved boundaries between cells, and a 3D-printed plastic frame hosting individual cells. We found that the latter suppresses op
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44

Micolon, F., D. Bruno, C. Mi, et al. "Reengineering the RHIC helium cooled current leads for EIC." IOP Conference Series: Materials Science and Engineering 1301, no. 1 (2024): 012155. http://dx.doi.org/10.1088/1757-899x/1301/1/012155.

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Abstract The electron ion collider (EIC) Hadron Storage Ring (HSR) will reuse most of the existing superconducting magnets (SC) from the RHIC storage ring. However, for some sectors of the machine, a modification of the accelerators optics will be required. To do this, the existing RHIC magnet electrical circuits will have to be modified and some superconducting current leads will need to be used at higher current. A work has been conducted to understand the current leads design parameters and their operational flexibility around these parameters, in particular for use at higher current. This
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45

Qiang, Ji, and Erdong Wang. "Simulation of shot noise effects in the EIC strong hadron cooling accelerator using real number of electrons." Journal of Physics: Conference Series 2687, no. 6 (2024): 062020. http://dx.doi.org/10.1088/1742-6596/2687/6/062020.

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Abstract In the electron ion collider design, in order to achieve the peak luminosity 1034/cm 2/s with a reasonable lifetime, an efficient coherent electron cooling scheme was proposed to reduce the hadron beam emittance growth. Such a cooling scheme requires a good electron beam quality with a small energy spread. However, the shot noise in the electron beam through the accelerator might be amplified due to the microbunching instability and degrades the electron beam quality in the modulator section of the strong hadron cooling channel and correspondingly cooling rate. In this study, we repor
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46

Kondrashev, S., E. Beebe, B. Coe, et al. "Commissioning of Extended Electron Beam Ion Source at Brookhaven National Laboratory." Journal of Instrumentation 20, no. 02 (2025): C02050. https://doi.org/10.1088/1748-0221/20/02/c02050.

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Abstract The Extended Electron Beam Ion Source (EEBIS) has been installed and commissioned at Brookhaven National Laboratory (BNL) hadron accelerator complex in the spring of 2023. EEBIS has replaced its predecessor, RhicEBIS, which provided ions for BNL hadron facilities for over a decade since 2009. The motivations for the source upgrade are to provide higher intensities of the Au32+ ion beam for the Relativistic Heavy Ion Collider (RHIC) and to provide of an intense source of polarized 3He2+ ions for the future Electron Ion Collider (EIC) at BNL. EEBIS is and will continue to be the primary
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47

Micolon, F., J. Bellon, B. Gallagher, et al. "FELICIA - A probe to survey the RHIC magnet beampipe diameter for EIC beam screen insertion." Journal of Physics: Conference Series 2687, no. 8 (2024): 082042. http://dx.doi.org/10.1088/1742-6596/2687/8/082042.

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Abstract The Electron Ion Collider (EIC) Hadron Storage Ring (HSR) will reuse many of the existing superconducting (SC) magnets of the RHIC storage rings. To comply with the beamline vacuum requirements in more demanding operational scenarios, the beampipe of the RHIC SC magnets will be equipped with low surface impedance, low secondary electron yield (SEY) beam screens. The installation of these beam screens will be done with the SC magnets as installed today, thus making it a critical operation for a timely EIC installation. The beam screen inner dimensions must be maximized to retain enough
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48

Rignanese, Luigi Pio, Neelima Agrawaal, Maxim Alexeev, et al. "A readout system based on SiPM for the dRICH detector at the EIC." Journal of Instrumentation 19, no. 02 (2024): C02062. http://dx.doi.org/10.1088/1748-0221/19/02/c02062.

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Abstract The ePIC experiment at the future Electron-Ion Collider (EIC) aims to use silicon photomultipliers (SiPMs) as the photodetector technology for the dual-radiator ring-imaging Cherenkov detector (dRICH). Despite their advantages for this low light application and insensitivity to high magnetic fields, SiPMs are sensitive to radiation and require rigorous testing to ensure that their single-photon counting capabilities and dark count rate are kept under control over the years of operation. The presented results show the successful use of a complete prototype readout chain based on the AL
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Madrid, C., R. Heller, C. San Martín, et al. "First survey of centimeter-scale AC-LGAD strip sensors with a 120 GeV proton beam." Journal of Instrumentation 18, no. 06 (2023): P06013. http://dx.doi.org/10.1088/1748-0221/18/06/p06013.

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Abstract We present the first beam test results with centimeter-scale AC-LGAD strip sensors, using the Fermilab Test Beam Facility and sensors manufactured by the Brookhaven National Laboratory. Sensors of this type are envisioned for applications that require large-area precision 4D tracking coverage with economical channel counts, including timing layers for the Electron Ion Collider (EIC), and space-based particle experiments. A survey of sensor designs is presented, with the aim of optimizing the electrode geometry for spatial resolution and timing performance. Several design consideration
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Corianò, Claudio, Stefano Lionetti, Dario Melle, and Riccardo Tommasi. "The gravitational form factor of the pion and proton and the conformal anomaly*." EPJ Web of Conferences 314 (2024): 00030. https://doi.org/10.1051/epjconf/202431400030.

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We analyze the hard scattering amplitude of gravitational form factors (GFFs) of hadrons within QCD factorization at large momentum transfers, focusing on their conformal field theory (CFT) description. These form factors are key to studying quark and gluon angular momentum in hadrons, connected to Mellin moments of Deeply Virtual Compton Scattering (DVCS). The analysis uses diffeomorphism invariance and conformal symmetry in momentum space. A non-Abelian TJJ 3-point function at O(αs2) reveals a dilaton interaction in the t-channel. We present a parameterization relevant for future DVCS/GFF ex
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