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

  • Adare, A.
  • Aidala, C.
  • Ajitanand, N. N.
  • Akiba, Y.
  • Akimoto, R.
  • ... Kim, Yong Kyun
  • 외 329명
Citations

WEB OF SCIENCE

11
Citations

SCOPUS

14

초록

We report the double-helicity asymmetry, A(LL)(J/Psi), in inclusive J/Psi production at forward rapidity as a function of transverse momentum p(T) and rapidity |y|. The data analyzed were taken during root s = 510 GeV longitudinally polarized p + p collisions at the Relativistic Heavy Ion Collider in the 2013 run using the PHENIX detector. At this collision energy, J/Psi particles are predominantly produced through gluon-gluon scatterings, thus A(LL)(J/Psi) is sensitive to the gluon polarization inside the proton. We measured A(LL)(J/Psi) by detecting the decay daughter muon pairs mu(+)mu(-) within the PHENIX muon spectrometers in the rapidity range 1.2 < |y| < 2.2. In this kinematic range, we measured the A(LL)(J/Psi) to be 0.012 +/- 0.010 (stat) +/- 0.003 (syst). The A(LL)(J.Psi) can be expressed to be proportional to the product of the gluon polarization distributions at two distinct ranges of Bjorken x: one at moderate range x approximate to 5 x 10(-2) where recent data of jet and pi(0) double helicity spin asymmetries have shown evidence for significant gluon polarization, and the other one covering the poorly known small-x region x approximate to 2 x 10(-3). Thus our new results could be used to further constrain the gluon polarization for x < 5 x 10(-2).

키워드

SPINPHENIXSCATTERING
제목
Measurements of double-helicity asymmetries in inclusive J/Psi production in longitudinally polarized p plus p collisions at root s=510 GeV
저자
Adare, A.Aidala, C.Ajitanand, N. N.Akiba, Y.Akimoto, R.Alfred, M.Apadula, N.Aramaki, Y.Asano, H.Atomssa, E. T.Awes, T. C.Azmoun, B.Babintsev, V.Bai, M.Bandara, N. S.Bannier, B.Barish, K. N.Bathe, S.Bazilevsky, A.Beaumier, M.Beckman, S.Belmont, R.Berdnikov, A.Berdnikov, Y.Black, D.Blau, D. S.Bok, J. S.Boyle, K.Brooks, M. L.Bryslawskyj, J.Buesching, H.Bumazhnov, V.Campbell, S.Chen, C. -H.Chi, C. Y.Chiu, M.Choi, I. J.Choi, J. B.Chujo, T.Citron, Z.Csanad, M.Csorgo, T.Danley, T. W.Datta, A.Daugherity, M. S.David, G.DeBlasio, K.Dehmelt, K.Denisov, A.Deshpande, A.Desmond, E. J.Ding, L.Dion, A.Diss, P. B.Do, J. H.Drees, A.Drees, K. A.Durham, J. M.Durum, A.Enokizono, A.En'yo, H.Esumi, S.Fadem, B.Feege, N.Fields, D. E.Finger, M.Finger, M., Jr.Fokin, S. L.Frantz, J. E.Franz, A.Frawley, A. D.Gal, C.Gallus, P.Garg, P.Ge, H.Giordano, F.Glenn, A.Goto, Y.Grau, N.Greene, S. V.Perdekamp, M. GrosseGu, Y.Gunji, T.Guragain, H.Hachiya, T.Haggerty, J. S.Hahn, K. I.Hamagaki, H.Hamilton, H. F.Han, S. Y.Hanks, J.Hasegawa, S.Haseler, T. O. S.Hashimoto, K.He, X.Hemmick, T. K.Hill, J. C.Hollis, R. S.Homma, K.Hong, B.Hoshino, T.Hotvedt, N.Huang, J.Huang, S.Ikeda, Y.Imai, K.Imazu, Y.Inaba, M.Iordanova, A.Isenhower, D.Ivanishchev, D.Jacak, B. V.Jeon, S. J.Jezghani, M.Jia, J.Jiang, X.Johnson, B. M.Joo, E.Joo, K. S.Jouan, D.Jumper, D. S.Kanda, S.Kang, J. H.Kang, J. S.Kawall, D.Kazantsev, A. V.Key, J. A.Khachatryan, V.Khanzadeev, A.Kihara, K.Kim, C.Kim, D. H.Kim, D. J.Kim, E. -J.Kim, G. W.Kim, H. -J.Kim, M.Kim, Yong KyunKimelman, B.Kistenev, E.Kitamura, R.Klatsky, J.Kleinjan, D.Kline, P.Koblesky, T.Kofarago, M.Komkov, B.Koster, J.Kotov, D.Kurita, K.Kurosawa, M.Kwon, Y.Lacey, R.Lajoie, J. G.Lebedev, A.Lee, K. B.Lee, S.Lee, S. H.Leitch, M. J.Leitgab, M.Li, X.Lim, S. H.Liu, M. X.Lynch, D.Makdisi, Y. I.Makek, M.Manion, A.Manko, V. I.Mannel, E.McCumber, M.McGaughey, P. L.McGlinchey, D.McKinney, C.Meles, A.Mendoza, M.Meredith, B.Miake, Y.Mignerey, A. C.Miller, A. J.Milov, A.Mishra, D. K.Mitchell, J. T.Miyasaka, S.Mizuno, S.Mohanty, A. K.Montuenga, P.Moon, T.Morrison, D. P.Moukhanova, T. V.Murakami, T.Murata, J.Mwai, A.Nagamiya, S.Nagashima, K.Nagle, J. L.Nagy, M. I.Nakagawa, I.Nakagomi, H.Nakano, K.Nattrass, C.Netrakanti, P. K.Nihashi, M.Niida, T.Nishimura, S.Nouicer, R.Novak, T.Novitzky, N.Nyanin, A. S.O'Brien, E.Ogilvie, C. A.Koop, J. D. OrjuelaOsborn, J. D.Oskarsson, A.Ozawa, K.Pak, R.Pantuev, V.Papavassiliou, V.Park, J. S.Park, S.Pate, S. F.Patel, L.Patel, M.Peng, J. -C.Perepelitsa, D. V.Perera, G. D. N.Peressounko, D. Yu.Perry, J.Petti, R.Pinkenburg, C.Pinson, R.Pisani, R. P.Purschke, M. L.Rak, J.Ramson, B. J.Ravinovich, I.Read, K. F.Reynolds, D.Riabov, V.Riabov, Y.Rinn, T.Riveli, N.Roach, D.Rolnick, S. D.Rosati, M.Rowan, Z.Rubin, J. G.Sahlmueller, B.Saito, N.Sakaguchi, T.Sako, H.Samsonov, V.Sarsour, M.Sato, S.Sawada, S.Schaefer, B.Schmoll, B. K.Sedgwick, K.Seele, J.Seidl, R.Sen, A.Seto, R.Sett, P.Sexton, A.Sharma, D.Shein, I.Shibata, T. -A.Shigaki, K.Shimomura, M.Shukla, P.Sickles, A.Silva, C. L.Silvermyr, D.Singh, B. K.Singh, C. P.Singh, V.Slunecka, M.Snowball, M.Soltz, R. A.Sondheim, W. E.Sorensen, S. P.Sourikova, I. V.Stankus, P. W.Stepanov, M.Stoll, S. P.Sugitate, T.Sukhanov, A.Sumita, T.Sun, J.Sziklai, J.Takahara, A.Taketani, A.Tanida, K.Tannenbaum, M. J.Tarafdar, S.Taranenko, A.Tieulent, R.Timilsina, A.Todoroki, T.Tomasek, M.Torii, H.Towell, C. L.Towell, M.Towell, R.Towell, R. S.Tserruya, I.van Hecke, H. W.Vargyas, M.Velkovska, J.Virius, M.Vrba, V.Vznuzdaev, E.Wang, X. R.Watanabe, D.Watanabe, Y.Watanabe, Y. S.Wei, F.Whitaker, S.White, A. S.Wolin, S.Woody, C. L.Wysocki, M.Xia, B.Xue, L.Yalcin, S.Yamaguchi, Y. L.Yanovich, A.Yoo, J. H.Yoon, I.Younus, I.Yu, H.Yushmanov, I. E.Zajc, W. A.Zelenski, A.Zhou, S.Zou, L.
DOI
10.1103/PhysRevD.94.112008
발행일
2016-12
유형
Article
저널명
Physical Review d
94
11
페이지
1 ~ 10

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