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Journal articles on the topic 'Theoretical astroparticles physics'

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1

Jenkovszky, L´aszl´o. "EDITORIAL FOREWORD." Ukrainian Journal of Physics 69, no. 11 (2024): 765. https://doi.org/10.15407/ujpe69.11.765.

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New Trends in High-Energy Physics is a series of conferences initiated by the Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine in 1992. It is focused on topical problems in experiment, phenomenology and theory of particle, nuclear and astroparticle physics. The conferences were held yearly or biannually at various sites in Ukraine and abroad, namely in Kyiv, Alushta, Yalta, Novy Svit, Odesa (Ukraine), Sukhumi (Georgia), Budva/Beˇci´ci (Montenegro), and Natal (Brazil).
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2

Donato, Fiorenza. "Cosmic ray astroparticle physics: current status and future perspectives." Proceedings of the International Astronomical Union 12, S331 (2017): 220–29. http://dx.doi.org/10.1017/s1743921317005233.

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AbstractThe data we are receiving from galactic cosmic rays are reaching an unprecedented precision, over very wide energy ranges. Nevertheless, many problems are still open, while new ones seem to appear when data happen to be redundant. We will discuss some paths to possible progress in the theoretical modeling and experimental exploration of the galactic cosmic radiation.
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3

Mukhanov, Viatcheslav, and Licia Verde. "JCAP 20th anniversary retrospective: editorial." Journal of Cosmology and Astroparticle Physics 2023, no. 06 (2023): 041. http://dx.doi.org/10.1088/1475-7516/2023/06/041.

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Abstract This year the Journal of Cosmology and Astroparticle Physics (JCAP) celebrates its 20th anniversary. “A journal by scientists for scientists” is the motto that has driven JCAP since its inception, which epitomises its philosophy of being an innovative and community-driven journal. Over the past two decades, JCAP has become one of the premier outlets for high-quality research, now publishing circa 800 papers per year, almost all of which are Open Access (either green or gold route), and with submissions originating from more than 60 countries around the world. JCAP encompasses theoreti
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4

Antonelli, Vito, Lino Miramonti, and Marco Danilo Claudio Torri. "Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics." Symmetry 12, no. 11 (2020): 1821. http://dx.doi.org/10.3390/sym12111821.

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It is well known that a fundamental theorem of Quantum Field Theory (QFT) set in flat spacetime ensures the CPT invariance of the theory. This symmetry is strictly connected to the Lorentz covariance, and consequently to the fundamental structure of spacetime. Therefore it may be interesting to investigate the possibility of departure from this fundamental symmetry, since it can furnish a window to observe possible effects of a more fundamental quantum gravity theory in a “lower energy limit”. Moreover, in the past, the inquiry of symmetry violations provided a starting point for new physics d
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5

Robens, Tania. "The THDMa Revisited." Symmetry 13, no. 12 (2021): 2341. http://dx.doi.org/10.3390/sym13122341.

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The THDMa is a new physics model that extends the scalar sector of the Standard Model by an additional doublet as well as a pseudoscalar singlet and allows for mixing between all possible scalar states. In the gauge-eigenbasis, the additional pseudoscalar serves as a portal to the dark sector, with a priori any dark matter spins states. The option where dark matter is fermionic is currently one of the standard benchmarks for the experimental collaborations, and several searches at the LHC constrain the corresponding parameter space. However, most current studies constrain regions in parameter
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6

Mavromatos, Nick E. "Small-Scale Cosmology “Crisis” and Self-Interacting Right-Handed Neutrino Warm Dark Matter." EPJ Web of Conferences 182 (2018): 01001. http://dx.doi.org/10.1051/epjconf/201818201001.

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In the lecture, I first review the basic problems of the ΔCDM model at small (galactic) scales, also known as “small-scale Cosmology crisis”, namely discrepancies between theoretical simulations and observations. I then argue how systems of righthanded neutrinos (RHN) with masses of order 50 keV in the galaxies can tackle these problems, provided appropriately strong RHN self-interactions are included. Such models may constitute interesting minimal extensions of the Standard Model. Combining galactic phenomenology with other astroparticle physics considerations of such models, one arrives at a
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7

Zen Vasconcellos, César, Helio T. Coelho, and Peter Otto Hess. "Walter Greiner: In Memoriam." International Journal of Modern Physics: Conference Series 45 (January 2017): 1760001. http://dx.doi.org/10.1142/s2010194517600011.

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Walter Greiner (29 October 1935 - 6 October 2016) was a German theoretical physicist. His scientific research interests include the thematic areas of atomic physics, heavy ion physics, nuclear physics, elementary particle physics (particularly quantum electrodynamics and quantum chromodynamics). He is most known in Germany for his series of books in theoretical physics, but he is also well known around the world. Greiner was born on October 29, 1935, in Neuenbau, Sonnenberg, Germany. He studied physics at the University of Frankfurt (Goethe University in Frankfurt Am Main), receiving in this i
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8

Koler, Cheryl Akner, and Lars Bergström. "Complex Curvatures in Form Theory and String Theory." Leonardo 38, no. 3 (2005): 226–31. http://dx.doi.org/10.1162/0024094054028985.

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The authors use new aesthetic criteria concerning structures and properties to explain parallel concepts within theoretical astroparticle physics and contemporary form/compositional research. These aesthetic criteria stem from complex curvature models developed both in string theory and in artistic perceptual research on transitional surfaces and concavities. The authors compare the complex curvatures of the mathematically derived Calabi-Yau manifold with one of Akner Koler's sculptures, which explores an organic interpretation of the looping curvature of a Möbius strip. A goal of the collabor
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9

Antonelli, V., L. Miramonti, C. Peña Garay, and A. Serenelli. "Solar Neutrinos." Advances in High Energy Physics 2013 (2013): 1–34. http://dx.doi.org/10.1155/2013/351926.

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The study of solar neutrinos has given a fundamental contribution both to astroparticle and to elementary particle physics, offering an ideal test of solar models and offering at the same time relevant indications on the fundamental interactions among particles. After reviewing the striking results of the last two decades, which were determinant to solve the long standing solar neutrino puzzle and refine the Standard Solar Model, we focus our attention on the more recent results in this field and on the experiments presently running or planned for the near future. The main focus at the moment
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10

Caracciolo, Vincenzo, Pierluigi Belli, Rita Bernabei, et al. "Investigation on Rare Nuclear Processes in Hf Nuclides." Radiation 2, no. 2 (2022): 234–47. http://dx.doi.org/10.3390/radiation2020017.

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In this work, a review of recent studies concerning rare nuclear processes in Hf isotopes is presented. In particular, the investigations using HP-Ge spectrometry and Hf-based crystal scintillators are focused; the potentiality and the results of the “source = detector” approach are underlined. In addition, a short introduction concerning the impact of such kind of research in the context of astroparticle and nuclear physics is pointed out. In particular, the study of α decay and double beta decay of 174Hf, 176Hf, 177Hf, 178Hf, 179Hf, 180Hf isotopes either to the ground state or to the lower b
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11

Sushchov, O., P. Homola, N. Dhital, et al. "Cosmic-Ray Extremely Distributed Observatory: a global cosmic ray detection framework." Advances in Astronomy and Space Physics 7, no. 1-2 (2017): 23–29. http://dx.doi.org/10.17721/2227-1481.7.23-29.

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The main objective of the Cosmic-Ray Extremely Distributed Observatory (CREDO) is the detection and analysis of extended cosmic ray phenomena, so-called super-preshowers (SPS), using existing as well as new infrastructure (cosmic-ray observatories, educational detectors, single detectors etc.). The search for ensembles of cosmic ray events initiated by SPS is yet an untouched ground, in contrast to the current state-of-the-art analysis, which is focused on the detection of single cosmic ray events. Theoretical explanation of SPS could be given either within classical (e.g., photon-photon inter
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12

"Institute of High Energy Physics, Chinese Academy of Sciences." National Science Review 4, no. 6 (2017): 934–42. http://dx.doi.org/10.1093/nsr/nwx141.

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Abstract The Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), is China's biggest laboratory for basic sciences. IHEP aims to understand the universe at the most fundamental level—from the smallest subatomic particles to the large-scale structure of the cosmos. As well as theoretical and experimental research into particle and astroparticle physics, IHEP has a broad range of research in related fields from accelerator technologies to nuclear analysis techniques. The Institute also provides beam facilities for researchers in other fields of sciences.
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13

"12th Cosmic Ray International Seminar “The endless multiple voices fugue of the Universe”." Journal of Physics: Conference Series 2429, no. 1 (2023): 011001. http://dx.doi.org/10.1088/1742-6596/2429/1/011001.

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Napoli, Italy, September 12 - 16, 2022 The 12th Cosmic Ray International Seminar (CRIS 2022) was held in Napoli, Italy, from September 12th to 16th, 2022. The meeting was focused on fundamental topics in astroparticle physics. CRIS 2022, following the experience of previous editions, aimed to present overviews of existing data and reports from the present and future experiments. Talks covered both theoretical/phenomenological and experimental/observational aspects, in order to give an exhaustive overview of this complex field. The discussion about the present status and future plans was achiev
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14

"Preface." Journal of Physics: Conference Series 2156, no. 1 (2021): 011001. http://dx.doi.org/10.1088/1742-6596/2156/1/011001.

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The 17th edition of the International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021) was held from August 26 through September 3, 2021. For the first time in the TAUP series, started in 1989, the conference was organized as a fully online event due to the COVID-19 pandemic and hosted by IFIC Valencia, in collaboration with other Spanish institutions. IFIC (Instituto de Física Corpuscular) is a joint research institute belonging to two institutions: the Spanish National Research Council (CSIC) and the University of Valencia. The biennial TAUP series covers recent expe
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15

Ianni, Aldo. "Science in Underground Laboratories and DULIA-Bio." Frontiers in Physics 9 (February 23, 2021). http://dx.doi.org/10.3389/fphy.2021.612417.

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This paper reports a brief introduction to Deep Underground Laboratories (DULs) and the connection they have with research on biology in extreme environments and the effect of radiation in life. Presently, there are 14 DULs in operation worldwide. Although the main research activity in these infrastructures concerns the search for rare events in astroparticle physics and neutrino physics, DULs offer a unique opportunity to undertake experiments in astrobiology and biology in extreme environments. This is the main motivation of Deep Underground Laboratory Integrated Activity in biology (DULIA-b
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16

Bozorgnia, Nassim, Joseph Bramante, James M. Cline, et al. "Dark Matter Candidates and Searches." Canadian Journal of Physics, September 27, 2024. http://dx.doi.org/10.1139/cjp-2024-0128.

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Astrophysical observations suggest that most of the matter in the cosmos consists of a new form that has not been observed on Earth. The nature and origin of this mysterious dark matter are among the most pressing questions in fundamental science. In this review we summarize the current state of dark matter research from two perspectives. First, we provide an overview of the leading theoretical proposals for dark matter. And second, we describe how these proposals have driven a broad and diverse global search program for dark matter involving direct laboratory searches and astrophysical observ
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17

Klasen, Michael, and Hannu Paukkunen. "Nuclear Parton Distribution Functions After the First Decade of LHC Data." Annual Review of Nuclear and Particle Science, April 26, 2024. http://dx.doi.org/10.1146/annurev-nucl-102122-022747.

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We present a review of the conceptual basis, current knowledge, and recent progress regarding global analysis of nuclear parton distribution functions (PDFs). After introducing the theoretical foundations and methodological approaches for the extraction of nuclear PDFs from experimental data, we discuss how different measurements in fixed-target and collider experiments provide increasingly precise constraints on various aspects of nuclear PDFs, including shadowing, antishadowing, the EMC effect, Fermi motion, flavor separation, deuteron binding, and target-mass and other higher-twist effects.
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18

"Preface." Journal of Physics: Conference Series 2105, no. 1 (2021): 011001. http://dx.doi.org/10.1088/1742-6596/2105/1/011001.

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HEP 2021 - 38th Conference on Recent Developments in High Energy Physics and Cosmology was successfully held online between the 16th to the 19th of June 2021, in Thessaloniki, Greece. The conference was jointly organized and sponsored by the Hellenic Society for the Study of High Energy Physics, the Aristotle University of Thessaloniki and the Research Committee of the Aristotle University. In the context of the conference scholars and experts in the fields of Astroparticle and High Energy Physics, involved both in experimental and theoretical research, were invited from various universities a
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19

"Preface." Journal of Physics: Conference Series 2502, no. 1 (2023): 011001. http://dx.doi.org/10.1088/1742-6596/2502/1/011001.

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Abstract The tenth international symposium on “Large TPCs for low-energy rare event detection” was held in Paris from 15th to 17th of December 2021 at the Institute of Astroparticle physics of the University of Paris. The 2020 issue of this conference series was cancelled due to the Covid pandemic. The symposium was organized in a hybrid mode, which allowed about 40 people to attend in-person among a total of 131 registered participants. Very strict sanitary measures were taken to keep the meeting safe. As in previous events the program included neutrino physics, dark matter and axion searches
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20

"Preface." Journal of Physics: Conference Series 2375, no. 1 (2022): 011001. http://dx.doi.org/10.1088/1742-6596/2375/1/011001.

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HEP 2022 - 39th Conference on Recent Developments in High Energy Physics and Cosmology was successfully held online between the 15th to the 18th of June 2022, in Thessaloniki, Greece. The conference was jointly organized and sponsored by the Hellenic Society for the Study of High Energy Physics, the Aristotle University of Thessaloniki and the Research Committee of the Aristotle University. The conference invited scholars and experts in the fields of High Energy Physics, involved both in experimental and theoretical research, from various universities and institutions. The conference focuses o
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21

Coakley, Kevin J. "Ratio-Based Pulse Shape Discrimination: Analytic Results for Gaussian and Poisson Noise Models." Journal of Research of the National Institute of Standards and Technology 126 (November 9, 2021). http://dx.doi.org/10.6028/jres.126.032.

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In experiments in a range of felds including fast neutron spectroscopy and astroparticle physics, one can discriminate events of interest from background events based on the shapes of electronic pulses produced by energy deposits in a detector. Here, I focus on a well-known pulse shape discrimination method based on the ratio of the temporal integral of the pulse over an early interval Xp and the temporal integral over the entire pulse Xt . For both event classes, for both a Gaussian noise model and a Poisson noise model, I present analytic expressions for the conditional distribution of Xp gi
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22

Zhu, Bin, and Murat Abdughani. "Thermal relic of self-interacting dark matter with retarded decay of mediator." Journal of High Energy Physics 2021, no. 12 (2021). http://dx.doi.org/10.1007/jhep12(2021)059.

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Abstract The existence of a light mediator is beneficial to some phenomena in astroparticle physics, such as the core-cusp problem and diversity problem. It can decouple from Standard Model to avoid direct detection constraints, generally realized by retard decay of the mediator. Their out-of-equilibrium decay process changes the dark matter (DM) freeze-out via temperature discrepancy. This type of hidden sector (HS) typically requires a precision calculation of the freeze-out process considering HS temperature evolution and the thermal average of the cross-section. If the mediator is light su
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23

Horn, Markus, and Erin Lorraine Woodward. "Sanford Underground Research Facility’s approach to school education, community activities, and public outreach." Frontiers in Physics 11 (December 15, 2023). http://dx.doi.org/10.3389/fphy.2023.1310451.

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The Sanford Underground Research Facility (SURF) is the deepest underground science facility in the United States. SURF hosts world-leading experiments in neutrino, astroparticle and nuclear physics, as well as projects in biology, geology, and engineering, and is home to a major excavation project making space for Fermi National Accelerator Laboratory’s Long-Baseline Neutrino Facility (LBNF), which will power the Deep Underground Neutrino Experiment (DUNE). An emphasis on outreach and education is embedded in SURF’s mission statement: “to advance world-class science and inspire learning acros
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24

Cavalcante, Paolo, and Gabriele Bucciarelli. "An adaptive evacuation system for the Gran Sasso underground laboratory." Frontiers in Physics 12 (March 8, 2024). http://dx.doi.org/10.3389/fphy.2024.1320097.

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The Gran Sasso National Laboratory (LNGS) is, at present, the largest deep underground laboratory in operation for astroparticle physics and rare event research. The LNGS was created to carry out this research exploiting an overburden of 1,400 m of rock to reduce the flux of muons from cosmic rays. Operating an underground laboratory and its facilities implies a high level of risk. To mitigate risks at the LNGS, a crucial aspect is represented by the evacuation of people from an underground environment during emergencies. The connection between the underground facilities and the outside infras
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