Transverse single-spin asymmetries of midrapidity $π^0$ and $η$ mesons in polarized $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV
U. A. Acharya, C. Aidala, Y. Akiba, M. Alfred, V. Andrieux, N. Apadula, H. Asano, B. Azmoun, V. Babintsev, N. S. Bandara, K. N. Barish, S. Bathe, A. Bazilevsky,… 展开作者
U. A. Acharya, C. Aidala, Y. Akiba, M. Alfred, V. Andrieux, N. Apadula, H. Asano, B. Azmoun, V. Babintsev, N. S. Bandara, K. N. Barish, S. Bathe, A. Bazilevsky, M. Beaumier, R. Belmont, A. Berdnikov, Y. Berdnikov, L. Bichon, B. Blankenship, D. S. Blau, J. S. Bok, V. Borisov, M. L. Brooks, J. Bryslawskyj, V. Bumazhnov, S. Campbell, V. Canoa Roman, R. Cervantes, C. Y. Chi, M. Chiu, I. J. Choi, J. B. Choi, Z. Citron, M. Connors, R. Corliss, N. Cronin, M. Csanád, T. Csörgő, T. W. Danley, M. S. Daugherity, G. David, K. DeBlasio, K. Dehmelt, A. Denisov, A. Deshpande, E. J. Desmond, A. Dion, D. Dixit, J. H. Do, A. Drees, K. A. Drees, J. M. Durham, A. Durum, A. Enokizono, H. En'yo, R. Esha, S. Esumi, B. Fadem, W. Fan, N. Feege, D. E. Fields, M. Finger, M. Finger,, D. Firak, D. Fitzgerald, S. L. Fokin, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukuda, C. Gal, P. Gallus, P. Garg, H. Ge, M. Giles, F. Giordano, Y. Goto, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H. Guragain, T. Hachiya, J. S. Haggerty, K. I. Hahn, H. Hamagaki, H. F. Hamilton, S. Y. Han, J. Hanks, S. Hasegawa, T. O. S. Haseler, X. He, T. K. Hemmick, J. C. Hill, K. Hill, A. Hodges, R. S. Hollis, K. Homma, B. Hong, T. Hoshino, N. Hotvedt, J. Huang, S. Huang, K. Imai, M. Inaba, A. Iordanova, D. Isenhower, D. Ivanishchev, B. V. Jacak, M. Jezghani, Z. Ji, X. Jiang, B. M. Johnson, D. Jouan, D. S. Jumper, J. H. Kang, D. Kapukchyan, S. Karthas, D. Kawall, A. V. Kazantsev, V. Khachatryan, A. Khanzadeev, A. Khatiwada, C. Kim, E. -J. Kim, M. Kim, D. Kincses, A. Kingan, E. Kistenev, J. Klatsky, P. Kline, T. Koblesky, D. Kotov, S. Kudo, B. Kurgyis, K. Kurita, Y. Kwon, J. G. Lajoie, D. Larionova, M. Larionova, A. Lebedev, S. Lee, S. H. Lee, M. J. Leitch, Y. H. Leung, N. A. Lewis, X. Li, S. H. Lim, M. X. Liu, V. -R. Loggins, S. Lökös, K. Lovasz, D. Lynch, T. Majoros, Y. I. Makdisi, M. Makek, V. I. Manko, E. Mannel, M. McCumber, P. L. McGaughey, D. McGlinchey, C. McKinney, M. Mendoza, W. J. Metzger, A. C. Mignerey, A. Milov, D. K. Mishra, J. T. Mitchell, Iu. Mitrankov, G. Mitsuka, S. Miyasaka, S. Mizuno, M. M. Mondal, P. Montuenga, T. Moon, D. P. Morrison, S. I. Morrow, B. Mulilo, T. Murakami, J. Murata, K. Nagai, K. Nagashima, T. Nagashima, J. L. Nagle, M. I. Nagy, I. Nakagawa, K. Nakano, C. Nattrass, S. Nelson, T. Niida, R. Nouicer, T. Novák, N. Novitzky, A. S. Nyanin, E. O'Brien, C. A. Ogilvie, J. D. Orjuela Koop, J. D. Osborn, A. Oskarsson, G. J. Ottino, K. Ozawa, V. Pantuev, V. Papavassiliou, J. S. Park, S. Park, S. F. Pate, M. Patel, W. Peng, D. V. Perepelitsa, G. D. N. Perera, D. Yu. Peressounko, C. E. PerezLara, J. Perry, R. Petti, M. Phipps, C. Pinkenburg, R. P. Pisani, M. Potekhin, A. Pun, M. L. Purschke, P. V. Radzevich, N. Ramasubramanian, K. F. Read, D. Reynolds, V. Riabov, Y. Riabov, D. Richford, T. Rinn, S. D. Rolnick, M. Rosati, Z. Rowan, J. Runchey, A. S. Safonov, T. Sakaguchi, H. Sako, V. Samsonov, M. Sarsour, S. Sato, B. Schaefer, B. K. Schmoll, K. Sedgwick, R. Seidl, A. Sen, R. Seto, A. Sexton, D Sharma, D. Sharma, I. Shein, T. -A. Shibata, K. Shigaki, M. Shimomura, T. Shioya, P. Shukla, A. Sickles, C. L. Silva, D. Silvermyr, B. K. Singh, C. P. Singh, V. Singh, M. Slunečka, K. L. Smith, M. Snowball, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, P. W. Stankus, S. P. Stoll, T. Sugitate, A. Sukhanov, T. Sumita, J. Sun, X. Sun, Z. Sun, J. Sziklai, K. Tanida, M. J. Tannenbaum, S. Tarafdar, G. Tarnai, R. Tieulent, A. Timilsina, T. Todoroki, M. Tomášek, C. L. Towell, R. S. Towell, I. Tserruya, Y. Ueda, B. Ujvari, H. W. van Hecke, J. Velkovska, M. Virius, V. Vrba, N. Vukman, X. R. Wang, Y. S. Watanabe, C. P. Wong, C. L. Woody, Y. Wu, C. Xu, Q. Xu, L. Xue, S. Yalcin, Y. L. Yamaguchi, H. Yamamoto, A. Yanovich, J. H. Yoo, I. Yoon, H. Yu, I. E. Yushmanov, W. A. Zajc, A. Zelenski, Y. Zhai, S. Zharko, L. Zou
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314 authors from 66 institutions, 10 pages, 5 figures, 2 tables, 2015 data. v2 is version accepted for publication in 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
We present a measurement of the transverse single-spin asymmetry for $π^0$ and $η$ mesons in $p^\uparrow$$+$$p$ collisions in the pseudorapidity range $|η|<0.35$ and at a center-of-mass energy of 200 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. In comparison with previous measurements in this kinematic region, these results have a factor of 3 smaller uncertainties. As hadrons, $π^0$ and $η$ mesons are sensitive to both initial- and final-state nonperturbative effects for a mix of parton flavors. Comparisons of the differences in their transverse single-spin asymmetries have the potential to disentangle the possible effects of strangeness, isospin, or mass. These results can constrain the twist-3 trigluon collinear correlation function as well as the gluon Sivers function.
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Transverse Single-Spin Asymmetries of Midrapidity $π^{0}$ and $η$ Mesons in $\sqrt{s_{NN}} = 200$ GeV $p^{\uparrow}+$Au and $p^{\uparrow}+$Al Collisions from PHENIX
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