Measurements of double-helicity asymmetries in inclusive J /ψ production in longitudinally polarized p+p collisions at s =510 GeV

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Title:	Measurements of double-helicity asymmetries in inclusive J /ψ production in longitudinally polarized p+p collisions at s =510 GeV
Authors:	彭仁傑;Aidala, C.;Akiba, Y.;Alfred, M.;Apadula, N.;Asano, H.;Awes, T. C.;Azmoun, B.;Babintsev, V.;Barish, K. N.;Bazilevsky, A.;Berdnikov, A.;Blau, D. S.;Brooks, M. L.;Buesching, H.;Csanád, M.;Csörgő, T.;Denisov, A.;Ding, L.;Dion, A.;Diss, P. B.;Do, J. H.;Drees, K. A.;Durum, A.;Feege, N.;Fields, D. E.;Gal, C.;Garg, P.;Giordano, F.;Goto, Y.;Greene, S. V.;Gu, Y.;Hamilton, H. F.;Han, S. Y.;He, X.;Hemmick, T. K.;Hotvedt, N.;Huang, J.;Joo, K. S.;Kang, J. H.;Kawall, D.;Khachatryan, V.;Khanzadeev, A.;Kim, C.;Kim, Y. K.;Kleinjan, D.;Koster, J.;Kotov, D.;Kurita, K.;Kwon, Y.;Lacey, R.;Leitch, M. J.;Leitgab, M.;Makdisi, Y. I.;Mannel, E.;McGaughey, P. L.;McKinney, C.;Miake, Y.;Mignerey, A. C.;Mizuno, S.;Nakagomi, H.;Nattrass, C.;Niida, T.;Nishimura, S.;O’Brien, E.;Perera, G. D. N.;Peressounko, D. Yu.;Petti, R.;Pinkenburg, C.;Rak, J.;Ramson, B. J.;Reynolds, D.;Riabov, Y.;Rinn, T.;Sako, H.;Sawada, S.;Sen, A.;Shigaki, K.;Silva, C. L.;Silvermyr, D.;Singh, B. K.;Slunečka, M.;Snowball, M.;Soltz, R. A.;Stankus, P. W.;Stoll, S. P.;Sugitate, T.;Takahara, A.;Tannenbaum, M. J.;Tarafdar, S.;Tieulent, R.;Torii, H.;Towell, C. L.;Vznuzdaev, E.;Watanabe, Y.;Watanabe, Y. S.;Woody, C. L.;Yalcin, S.;Younus, I.;Zelenski, A.;Zou, L.
Contributors:	高能與強場物理研究中心
Keywords:	[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex];[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex];FOS: Physical sciences;gluon polarization;helicity assymetry;High Energy Physics - Experiment;High Energy Physics - Experiment (hep-ex);NATURAL SCIENCES. Physics;Nuclear Experiment;Nuclear Experiment (nucl-ex);p+p collision;p+p collision;gluon polarization;helicity assymetry;PRIRODNE ZNANOSTI. Fizika;QC Physics / fizika
Date:	2016-12-29
Issue Date:	2026-04-23 12:05:37 (UTC+8)
Publisher:	American Physical Society;American Physical Society (APS)
Abstract:	摘要： We report the double helicity asymmetry, $A_{LL}^{J/ }$, in inclusive $J/ $ production at forward rapidity as a function of transverse momentum $p_T$ and rapidity $\|y\|$. The data analyzed were taken during $\sqrt{s}=510$ GeV longitudinally polarized $p$$+$$p$ collisions at the Relativistic Heavy Ion Collider (RHIC) in the 2013 run using the PHENIX detector. At this collision energy, $J/ $ particles are predominantly produced through gluon-gluon scatterings, thus $A_{LL}^{J/ }$ is sensitive to the gluon polarization inside the proton. We measured $A_{LL}^{J/ }$ by detecting the decay daughter muon pairs $ ^+ ^-$ within the PHENIX muon spectrometers in the rapidity range $1.2 335 authors, 10 pages, 4 figures, 3 tables, 2013 data. Version accepted for publication by Phys. Rev. D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html 出版者： American Physical Society (APS) 出版日期： 2016-12-29 出處： Physical Review D, 2016-12, Vol.94 (11) 識別號： ISSN: 2470-0010 識別號： DOI: 10.1103/physrevd.94.112008 識別號： DOI: 10.48550/arxiv.1606.01815
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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