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Measurement of J/ψ at forward and backward rapidity in p+p, p+Al, p+Au, and He 3 +Au collisions at sNN =200 GeV

  • U. Acharya
  • , A. Adare
  • , C. Aidala
  • , N. N. Ajitanand
  • , Y. Akiba
  • , M. Alfred
  • , V. Andrieux
  • , N. Apadula
  • , H. Asano
  • , B. Azmoun
  • , V. Babintsev
  • , M. Bai
  • , N. S. Bandara
  • , B. Bannier
  • , K. N. Barish
  • , S. Bathe
  • , A. Bazilevsky
  • , M. Beaumier
  • , S. Beckman
  • , R. Belmont
  • A. Berdnikov, Y. Berdnikov, D. S. Blau, M. Boer, J. S. Bok, K. Boyle, M. L. Brooks, J. Bryslawskyj, V. Bumazhnov, S. Campbell, V. Canoa Roman, R. Cervantes, C. H. Chen, C. Y. Chi, M. Chiu, I. J. Choi, J. B. Choi, T. Chujo, Z. Citron, M. Connors, N. Cronin, M. Csanád, T. Csörgo, T. W. Danley, A. Datta, M. S. Daugherity, G. David, K. Deblasio, K. Dehmelt, A. Denisov, A. Deshpande, E. J. Desmond, A. Dion, P. B. Diss, 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. Fitzgerald, S. L. Fokin, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukuda, C. Gal, P. Gallus, E. A. Gamez, P. Garg, H. Ge, F. Giordano, A. Glenn, 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, K. Hashimoto, 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, S. Ishimaru, D. Ivanishchev, B. V. Jacak, M. Jezghani, Z. Ji, J. Jia, X. Jiang, B. M. Johnson, D. Jouan, D. S. Jumper, S. Kanda, J. H. Kang, D. Kapukchyan, S. Karthas, D. Kawall, A. V. Kazantsev, J. A. Key, V. Khachatryan, A. Khanzadeev, A. Khatiwada, C. Kim, D. J. Kim, E. J. Kim, G. W. Kim, M. Kim, B. Kimelman, D. Kincses, E. Kistenev, R. Kitamura, J. Klatsky, D. Kleinjan, P. Kline, T. Koblesky, B. Komkov, D. Kotov, S. Kudo, B. Kurgyis, K. Kurita, M. Kurosawa, Y. Kwon, R. Lacey, J. G. Lajoie, A. Lebedev, S. Lee, S. H. Lee, M. J. Leitch, Y. H. Leung, N. A. Lewis, X. Li, X. Li, S. H. Lim, M. X. Liu, V. R. Loggins, S. Lökös, K. Lovasz, D. Lynch, T. Majoros, Y. I. Makdisi, M. Makek, A. Manion, V. I. Manko, E. Mannel, M. McCumber, P. L. McGaughey, D. McGlinchey, C. McKinney, A. Meles, M. Mendoza, W. J. Metzger, A. C. Mignerey, D. E. Mihalik, A. Milov, D. K. Mishra, J. T. Mitchell, Iu Mitrankov, G. Mitsuka, S. Miyasaka, S. Mizuno, A. K. Mohanty, P. Montuenga, T. Moon, D. P. Morrison, S. I. Morrow, T. V. Moukhanova, B. Mulilo, T. Murakami, J. Murata, A. Mwai, K. Nagai, K. Nagashima, T. Nagashima, J. L. Nagle, M. I. Nagy, I. Nakagawa, H. Nakagomi, K. Nakano, C. Nattrass, S. Nelson, P. K. Netrakanti, T. Niida, S. Nishimura, R. Nishitani, 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, R. Pak, V. Pantuev, V. Papavassiliou, J. S. Park, S. Park, S. F. Pate, M. Patel, J. C. Peng, W. Peng, D. V. Perepelitsa, G. D.N. Perera, D. Yu Peressounko, C. E. Perezlara, J. Perry, R. Petti, M. Phipps, C. Pinkenburg, R. Pinson, R. P. Pisani, M. Potekhin, A. Pun, M. L. Purschke, P. V. Radzevich, J. Rak, N. Ramasubramanian, B. J. Ramson, I. Ravinovich, K. F. Read, D. Reynolds, V. Riabov, Y. Riabov, D. Richford, T. Rinn, S. D. Rolnick, M. Rosati, Z. Rowan, J. G. Rubin, J. Runchey, A. S. Safonov, B. Sahlmueller, N. Saito, T. Sakaguchi, H. Sako, V. Samsonov, M. Sarsour, S. Sato, C. Y. Scarlett, B. Schaefer, B. K. Schmoll, K. Sedgwick, R. Seidl, A. Sen, R. Seto, P. Sett, A. Sexton, 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. J. Skoby, M. Slunečka, K. L. Smith, M. Snowball, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, P. W. Stankus, M. Stepanov, S. P. Stoll, T. Sugitate, A. Sukhanov, T. Sumita, J. Sun, X. Sun, Z. Sun, S. Suzuki, J. Sziklai, A. Taketani, K. Tanida, M. J. Tannenbaum, S. Tarafdar, A. Taranenko, G. Tarnai, R. Tieulent, A. Timilsina, T. Todoroki, M. Tomášek, C. L. Towell, R. 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, Z. Wang, Y. Watanabe, Y. S. Watanabe, F. Wei, A. S. White, C. P. Wong, C. L. Woody, Y. Wu, M. Wysocki, B. Xia, 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, S. Zhou, L. Zou
  • Georgia State University
  • University of Colorado Boulder
  • University of Michigan, Ann Arbor
  • Stony Brook University
  • RIKEN
  • Brookhaven National Lab
  • Howard University
  • Iowa State University
  • Kyoto University
  • Brookhaven National Laboratory
  • Institute for High Energy Physics
  • University of Massachusetts
  • University of California at Riverside
  • City University of New York
  • University of North Carolina at Greensboro
  • Peter the Great St. Petersburg Polytechnic University
  • Russian Research Centre Kurchatov Institute
  • Moscow Engineering Physics Institute
  • Los Alamos National Laboratory
  • New Mexico State University
  • Columbia University
  • University of Illinois at Urbana-Champaign
  • Jeonbuk National University
  • University of Tsukuba
  • Weizmann Institute of Science
  • Muhlenberg College
  • Eötvös Loránd University
  • Hungarian University of Agriculture and Life Sciences
  • Hungarian Academy of Sciences
  • Ohio University
  • University of New Mexico
  • Abilene Christian University
  • University of Debrecen
  • University of Maryland, College Park
  • Yonsei University
  • Rikkyo University
  • Charles University
  • Florida State University
  • Czech Technical University in Prague
  • Banaras Hindu University
  • Lawrence Livermore National Laboratory
  • Augustana University
  • Vanderbilt University
  • The University of Tokyo
  • Nara Women's University
  • Ewha Womans University
  • Korea University
  • Japan Atomic Energy Agency
  • Hiroshima University
  • Petersburg Nuclear Physics InstituteGatchina
  • Université Paris-Saclay
  • University of Jyväskylä
  • Seoul National University
  • China National Nuclear Corporation
  • Pusan National University
  • University of Zagreb
  • Homi Bhabha National Institute
  • High Energy Accelerator Research Organization, Tsukuba
  • Institute of Science Tokyo
  • University of Tennessee
  • Florida A&M University
  • Lund University
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Oak Ridge National Laboratory
  • Universite Claude Bernard Lyon 1
  • Czech Academy of Sciences
  • Peking University

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Charmonium is a valuable probe in heavy-ion collisions to study the properties of the quark gluon plasma, and is also an interesting probe in small collision systems to study cold nuclear matter effects, which are also present in large collision systems. With the recent observations of collective behavior of produced particles in small system collisions, measurements of the modification of charmonium in small systems have become increasingly relevant. We present the results of J/ψ measurements at forward and backward rapidity in various small collision systems, p+p, p+Al, p+Au, and He3+Au, at sNN=200 GeV. The results are presented in the form of the observable RAB, the nuclear modification factor, a measure of the ratio of the J/ψ invariant yield compared to the scaled yield in p+p collisions. We examine the rapidity, transverse momentum, and collision centrality dependence of nuclear effects on J/ψ production with different projectile sizes p and He3, and different target sizes Al and Au. The modification is found to be strongly dependent on the target size, but to be very similar for p+Au and He3+Au. However, for 0%-20% central collisions at backward rapidity, the modification factor for He3+Au is found to be smaller than that for p+Au, with a mean fit to the ratio of 0.89±0.03(stat)±0.08(syst), possibly indicating final state effects due to the larger projectile size.

Original languageEnglish
Article number014902
JournalPhysical Review C
Volume102
Issue number1
DOIs
StatePublished - Jul 2020

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