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Relevant bibliographies by topics / Gluon Spin

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Academic literature on the topic 'Gluon Spin'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Gluon Spin"

1

CHENG, HAI-YANG. "STATUS OF THE PROTON SPIN PROBLEM." International Journal of Modern Physics A 11, no. 29 (1996): 5109–81. http://dx.doi.org/10.1142/s0217751x96002364.

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The proton spin problem triggered by the EMC experiment and its present status are closely examined. Recent experimental and theoretical progresses and their implications are reviewed. It is pointed out that the sign of the sea quark polarization generated perturbatively by hard gluons via the anomaly mechanism is predictable. It is negative if the gluon spin component is positive. We stress that the polarized nucleon structure function g1(x) is independent of the k⊥ factorization scheme chosen in defining the quark spin density and the hard photon–gluon scattering cross-section. Consequently,

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YANG, XIN-HUA, CHUN WA WONG, and KEH-CHENG CHU. "DRESSED QUARKS AND PROTON’S SPIN." Modern Physics Letters A 06, no. 13 (1991): 1155–61. http://dx.doi.org/10.1142/s0217732391001202.

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The effect on the proton spin of mixing gluon and sea quark configurations is studied in a perturbative treatment based on the MIT bag model. As little as 29% of the proton spin is found to remain as the intrinsic spin of quarks when they are “dressed” by gluons.

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JI, XIANGDONG, and YONG ZHAO. "PHYSICS OF GLUON HELICITY." International Journal of Modern Physics: Conference Series 25 (January 2014): 1460028. http://dx.doi.org/10.1142/s2010194514600283.

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The total gluon helicity in a polarized proton is shown to be a matrix element of a gauge-invariant but nonlocal, frame-dependent gluon spin operator [Formula: see text] in the large momentum limit. The operator [Formula: see text] is fit for the calculation of the total gluon helicity in lattice QCD. This calculation also implies that parton physics can be studied through the large momentum limit of frame-dependent, equal-time correlation functions of quarks and gluons.

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Zhu, Wei, and Jianhong Ruan. "Nucleon spin structure." International Journal of Modern Physics E 24, no. 10 (2015): 1550077. http://dx.doi.org/10.1142/s0218301315500779.

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This paper contains three parts relating to the nucleon spin structure in a simple picture of the nucleon: (i) The polarized gluon distribution in the proton is dynamically predicted starting from a low scale by using a nonlinear quantum chromodynamics (QCD) evolution equation — the Dokshitzer–Gribov–Lipatov–Altarelli–Paris (DGLAP) equation with the parton recombination corrections, where the nucleon is almost consisted only of valence quarks. We find that the contribution of the gluon polarization to the nucleon spin structure is much larger than the predictions of most other theories. This r

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BATRA, M., та A. UPADHYAY. "DETAILED BALANCE AND SPIN CONTENT OF Λ USING STATISTICAL MODEL". International Journal of Modern Physics A 28, № 15 (2013): 1350062. http://dx.doi.org/10.1142/s0217751x13500620.

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The spin structure of lambda has its special importance in analyzing the spin content of other hadrons. Assuming hadrons as a cluster of quarks and gluons (generally referred as valence and sea), statistical approach has been applied to study spin distribution of lambda among quarks. We apply the principle of detailed balance to calculate the probability of various quark–gluon Fock states and check the impact of SU(3) breaking on these probabilities particularly in sea for the Fock states containing strange quark. The flavor probability when multiplied by spin and color multiplicities of these

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Momeni-Feili, Maryam, Firooz Arash, Fatemeh Taghavi-Shahri, and Abolfazl Shahveh. "Contribution of orbital angular momentum to the nucleon spin." International Journal of Modern Physics A 32, no. 06n07 (2017): 1750036. http://dx.doi.org/10.1142/s0217751x17500361.

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We have calculated the orbital angular momentum of quarks and gluons in the nucleon. The calculations are carried out in the next to leading order utilizing the so-called valon model. It is found that the average quark orbital angular momentum is positive, but small, and the average gluon orbital angular momentum is negative and large. We also report on some regularities about the total angular momentum of the quarks and the gluon, as well as on the orbital angular momentum of the separate partons. We have also provided partonic angular momentum, [Formula: see text] as a function of [Formula:

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Boer, Daniël, Cédric Lorcé, Cristian Pisano, and Jian Zhou. "The Gluon Sivers Distribution: Status and Future Prospects." Advances in High Energy Physics 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/371396.

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We review what is currently known about the gluon Sivers distribution and what are the opportunities to learn more about it. Because single transverse spin asymmetries inp↑p→πXprovide only indirect information about the gluon Sivers function through the relation with the quark-gluon and tri-gluon Qiu-Sterman functions, current data from hadronic collisions at RHIC have not yet been translated into a solid constraint on the gluon Sivers function. SIDIS data, including the COMPASS deuteron data, allow for a gluon Sivers contribution of natural size expected from largeNcarguments, which isO(1/Nc)

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OHKUMA, KAZUMASA, TOSHIYUKI MORII, and SATOSHI OYAMA. "CHARMED HADRON PRODUCTION AT RHIC." International Journal of Modern Physics A 18, no. 08 (2003): 1481–84. http://dx.doi.org/10.1142/s0217751x03014952.

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To extract information about polarized gluon distribution in the proton, charmed hadron, actually [Formula: see text], productions at RHIC experiment are studied. We found that the spin correlation asymmetry between the initial proton and the produced [Formula: see text] is enable us to distinguish parameterization models of polarized gluons.

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Arash, Firooz, Abolfazl Shahveh, and Fateme Taghavi-Shahri. "Gluon Spin Contribution to The Nucleon Spin." Nuclear Physics B - Proceedings Supplements 207-208 (October 2010): 57–60. http://dx.doi.org/10.1016/j.nuclphysbps.2010.10.015.

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Jaffe, R. L. "Gluon spin in the nucleon." Physics Letters B 365, no. 1-4 (1996): 359–66. http://dx.doi.org/10.1016/0370-2693(95)01247-8.

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Dissertations / Theses on the topic "Gluon Spin"

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Pallin, Dominique. "Désintégrations baryoniques du Jet spin du gluon." 63-Aubière : Impr. U.E.R. Sci, 1985. http://catalogue.bnf.fr/ark:/12148/cb361102484.

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Levillain, Maxime. "Double longitudinal spin asymmetries in single hadron photoproduction at high pT at COMPASS." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS059/document.

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Cette thèse présente une nouvelle étude ayant pour but de contraindre la contribution du gluon au spin 1/2 du nucléon. Cette analyse se place dans le cadre théorique de la pQCD colinéaire pour calculer des asymétries de section efficaces pour des hadrons inclusifs à grande impulsion transverse (pT>1 GeV/c) dans le régime de photoproduction quasi-réel (Q^2<1 GeV^2). Ces calculs sont réalisés jusqu'à NLO (Next-to-Leading Order) avec une inclusion prévue de resommation des gluons au seuil jusqu'à NLL (texit{Next-to-Leading Logarithm}), qui n'est pour l'instant fait que pour le cas non-polar

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Schmitt, Andreas. "Spin-one color superconductivity in cold and dense quark matter." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=974955094.

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Morreale, Astrid. "Probing the gluon contribution to the proton spin with charged pion production." Diss., UC access only, 2009. http://proquest.umi.com/pqdweb?index=126&did=1907248591&SrchMode=1&sid=1&Fmt=7&retrieveGroup=0&VType=PQD&VInst=PROD&RQT=309&VName=PQD&TS=1270490135&clientId=48051.

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Thesis (Ph. D.)--University of California, Riverside, 2009.<br>Includes abstract. Includes bibliographical references (leaves 248-250). Issued in print and online. Available via ProQuest Digital Dissertations.

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Sievert, Matthew D. "Transverse Spin and Classical Gluon Fields: Combining Two Perspectives on Hadronic Structure." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405337694.

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Betancourt, Michael (Michael Joseph). "The radiance of the gluon spin : constraining the proton spin structure with the direct photon double helicity asymmetry." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/77493.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, February 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 131-136).<br>Although fundamental to the observable universe, the proton is not elementary. Rather the particle is a bound state of three valence quarks and the QCD vacuum that condenses around them, its properties an amalgamation of those underlying degrees of freedom. Naive expectations presume that contributions from the valence quarks dominate these properties, but the deep inelastic scattering (DIS) experiments which f

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Olvitt, Daniel L. "Measurement of the Longitudinal Double Spin Asymmetry for Dijet Production in Polarized Proton+Proton Collisions at sqrt(s) = 510 GeV at STAR." Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/480255.

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Physics<br>Ph.D.<br>Understanding what contributes to the intrinsic angular momentum (spin) of the proton has been a major goal of the nuclear physics community. In the 1980s, it was discovered that quarks contribute 30% to the spin of the proton. This information led to a search to find other contributions to the spin of the proton. At STAR, the double spin asymmetry (ALL) is measured as it is sensitive to the polarized gluon distribution (Dg(x)). The STAR 2009 inclusive jet ALL at sqrt(s) = 200 GeV has been incorporated into two independent global fits. These fits show for the first time a s

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Ramachandran, Suvarna. "PROBING THE LOW-X GLUON HELICITY DISTRIBUTION WITH DIJET DOUBLE SPIN ASYMMETRIES IN POLARIZED PROTON COLLISIONS AT √S = 510 GEV." UKnowledge, 2018. https://uknowledge.uky.edu/physastron_etds/58.

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The proton is a complex subatomic particle consisting of quarks and gluons, and one of the key questions in nuclear physics is how the spin of the proton is distributed amongst its constituents. Polarized deep inelastic scattering experiments with leptons and protons estimate that the quark spin contribution is approximately 30%. The limited kinematic reach of these experiments, combined with the fact that they are only indirectly sensitive to the electrically neutral gluon, means they can provide very little information about the gluon contribution to the spin of the proton. In contrast, hadr

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Wiese, Christian. "Investigating new lattice approaches to the momentum and spin structure of the nucleon." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17522.

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Diese Arbeit beschäftigt sich mit der Berechnung von für die Struktur des Nukleons relevanten Observablen, die experimentell durch inklusive und semi-inklusive Streuexperimente bestimmt werden können. Es werden zwei Pilotstudien erörtert, welche die Spin- und Impulsstruktur des Nukleons mithilfe von Gitter-QCD untersuchen. Hierfür wird der Twisted-Mass-Formalismus mit dynamischen Fermionen verwendet, um sicherzustellen, dass die untersuchten Größen einen verbesserten Kontinuumslimes aufweisen. Der erste Teil dieser Arbeit untersucht die Umsetzbarkeit einer Rechnung, die sich mit dem durchschn

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Andrieux, Vincent. "Polarisation of quarks and gluons inside the nucleon." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112244/document.

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Cette thèse présente un travail relatif à l'étude de la structure en spin longitudinal du nucléon. Le but est de déterminer la contribution des constituants du proton, quarks et gluons, à la formation de son spin 1/2. L'analyse s'appuie sur les données de l'expérience COMPASS qui bénéficie d'un faisceau de muons polarisés à 200 GeV diffusé sur les protons polarisés d'une cible d'ammoniac (NH₃) de 1,2 m de long. On mesure l'asymétrie de spin longitudinal des sections efficaces de diffusion profondément inélastique. On extrait la fonction de structure en spin du proton, g₁p, étendant la couvertu

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Book chapters on the topic "Gluon Spin"

1

Mandula, Jeffrey E. "The Gluon Anomaly in the Proton Spin." In Vacuum Structure in Intense Fields. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-0441-9_20.

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Karliner, Marek. "Proton Spin Puzzle for Cyclists." In Medium-Energy Antiprotons and the Quark—Gluon Structure of Hadrons. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9579-3_5.

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Landua, R., J. M. Richard, and R. Klapisch. "PS199: p̅p→n̅n Spin Physics at LEAR." In Medium-Energy Antiprotons and the Quark—Gluon Structure of Hadrons. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9579-3_10.

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Kobushkin, A. P., and A. I. Syamtomov. "Quark-Gluon Point of View on the Spin Structure of the Deuteron from Experiments with Relativistic Deuteron Beams." In Few-Body Problems in Physics ’95. Springer Vienna, 1995. http://dx.doi.org/10.1007/978-3-7091-9427-0_50.

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Close, F. E. "Gluons, Spin and Flavour in the LEP (Low Energy Proton)." In Spin and Isospin in Nuclear Interactions. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3834-9_6.

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Ioffe, B. L. "The Revival of Longitudinal Photons and Gluons in Massless QED and QCD. The Infrared Problems in QCD." In High Energy Spin Physics. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-86995-2_17.

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Peskin, Michael E. "The Gluon." In Concepts of Elementary Particle Physics. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198812180.003.0010.

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This chapter describes the description of the proton as a bound state of partons. After a review of the properties of parton distribution functions, it introduces the evidence for a component of the proton responsible for its binding. It introduces the model of strong interactions as mediated by a spin 1 gluon and presents the evidence for this model from event shapes in electron-positron annihilation to hadrons.

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"THE AXIAL ANOMALY, GLUON TOPOLOGY AND $g^{(0)}_{A}$." In The Spin Structure of the Proton. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812709486_0006.

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"The Spin: If It's Round, It Rolls." In Quarks and Gluons. WORLD SCIENTIFIC, 1999. http://dx.doi.org/10.1142/9789812384799_0005.

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Conference papers on the topic "Gluon Spin"

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Tanaka, Kazuhiro. "Transverse-spin gluon distribution function." In XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects. Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.203.0229.

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Rondio, Ewa, Donald G. Crabb, Yelena Prok, et al. "Gluon polarization in the nucleon." In SPIN PHYSICS: 18th International Spin Physics Symposium. AIP, 2009. http://dx.doi.org/10.1063/1.3215622.

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Arash, Firooz, Fatemeh Taghavi-Shahri, Abolfazl Shahveh, et al. "Gluon Contribution To The Nucleon Spin." In DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY PHYSICS. AIP, 2011. http://dx.doi.org/10.1063/1.3601428.

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Boer, Daniël. "Gluon saturation effects on single spin asymmetries." In Proceedings of the 17th International Spin Physics Symposium. AIP, 2007. http://dx.doi.org/10.1063/1.2750861.

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Einhorn, Martin B. "Spin correlations in quark and gluon fragmentation." In HIGH−ENERGY SPIN PHYSICS/EIGHTH INTERNATIONAL SYMPOSIUM. AIP, 1989. http://dx.doi.org/10.1063/1.38314.

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Mandula, Jeffrey E. "The proton spin and the gluon anomaly." In Polarized Collider Workshop. AIP, 1991. http://dx.doi.org/10.1063/1.40490.

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KOIKE, YUJI. "SINGLE-SPIN ASYMMETRIES AND SOFT-GLUON POLES." In Proceedings of the 9th International Workshop. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778345_0090.

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Rock, Stephen. "The Gluon Spin Structure Function From SLAC E161." In SPIN 2002: 15th International Spin Physics Symposium and Workshop on Polarized Electron Sources and Polarimeters. AIP, 2003. http://dx.doi.org/10.1063/1.1607189.

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Dilks, Christopher. "Overview of Gluon Helicity Measurements at STAR." In 23rd International Spin Physics Symposium. Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.346.0130.

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Yokosawa, A. "Sea and gluon spin structure function measurements at RHIC." In The 11th International symposium on high energy spin physics. AIP, 1995. http://dx.doi.org/10.1063/1.48937.

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Reports on the topic "Gluon Spin"

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Rock, Stephen E. The Gluon Spin Structure Function From SLAC E161. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/812646.

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Fan, Cheng-Gang. Measurements of gluon spin-sensitive quantities at the Z{sup 0} resonance. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10122370.

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Fan, Cheng Gang. Measurements of gluon spin-sensitive quantities at the Z⁰ resonance. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10129751.

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Brodsky, Stanley J. Gluon Virtuality and Heavy Sea Quark Contributions to the Spin-dependent g1 Structure Function. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/9979.

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