$J/\psi$ production cross section and its dependence on charged-particle multiplicity in $p+p$ collisions at $\sqrt{s}$ = 200 GeV

Jaroslav Adam,K. Krueger,D. Kalinkin, X. Bai,V. Okorokov,Wen-Qing Shen, T. J. Humanic,Hans Georg Ritter,G. S. Averichev,L. Ruan, J. Ewigleben, M. Sergeeva,Y. Zhang,D. A. Morozov,M. Strikhanov, P. Federicova,T. Huang, P. Seyboth,M. Simko, A. Harlenderova, S. Salur, S. Heppelmann,X. M. Sun,J. Lauret,Yuanjing Li,Niseem Magdy Abdelwahab Abdelrahman,D. J. Stewart, Z. Zhu, C. Markert,O. V. Rogachevskiy,Chris Perkins,D. B. Nemes,Subhasis Chattopadhyay,I. Bordyuzhin, G. L. Ma,Q. Y. Shou,S. W. Wissink, W. Zha,Nu Xu,J. L. Drachenberg,N. G. Minaev, S. Siejka,J. Zhao, D. Grosnick, L. Didenko,Sergei A. Voloshin,M. Tokarev, L. Wen,K. Yip,Song Zhang,L. Kumar, O. Evdokimov, J. H. Chen,H. J. Crawford,A. Chatterjee,D. Kapukchyan,S. Fazio,D. Smirnov,Xin Dong,F. Seck, F. Shen,D. M. Anderson,S. B. Nurushev,Long Zhou, N. Elsey, Bill Christie,A. Ogawa,L. V. Nogach,Zhangbu Xu,L. Fulek,Jaroslav Bielcik,J. Mazer,A. N. Vasiliev,D. S. Gunarathne,Xiaoping Zhang, D. Olvitt,N. Yu,C. Zhong,A. I. Hamad,S. K. Tripathy,J. H. Lee,D. Arkhipkin,L. Yi,B. Pawlik,T. A. Kinghorn, S. Trentalange,Jim Thomas,L. K. Kosarzewski, Feng Liu, A. Attri,G. D. Westfall,G. Xie,M. Posik,Yi Guo,Xin Li, Y. Panebratsev,Jianping Cheng,R. E. Tribble,Xiaofeng Luo,Kejun Kang,N. Chankova-Bunzarova,A. F. Kraishan, J. Pluta, Yuri V. Fisyak,R. Esha,B. R. Schweid, J. C. Webb,O. Rusnakova, Spiros Margetis,M. Przybycien,A. Taranenko,T. Niida,Chi Yang,Y. Liu,Y. Sun,Pradip Kumar Sahu, R. Bellwied, T. Ljubicic,Xiaolong Chen,Shinichi Esumi,Zhengqiao Zhang,S. Singha,B. Tu,L. Adamczyk,Arabinda Behera,Zebo Tang,I. Mooney,Zhenyu Ye,J. H. Kwasizur, T. Tarnowsky, T. G. Dedovich,Sumit Kumar,D. P. Kikola,X. Huang,L. C. Bland,Y. Wang,H. W. Ke,A. Gibson,I. Vassiliev,X. Chen, Samuel Heppelmann,B. Summa,Peter Filip,M. A. Lisa, R. Majka,Jay Roberts,I. Chakaberia,N. Shah, D. D. Brown, B. Schmidke,Ashok Kumar Bhati, M. M. Aggarwal,Shuai Yang, Hal Spinka,Yi-Fei Xu,I. Upsal,B. Huang,S. L. Huang, Ron Longacre,N. Herrmann,F. J. M. Geurts, W. Guryn,B. Srivastava,G. Wang, G. Eppley, F. Videbaek,I. K. Yoo,R. Ma,S. K. Radhakrishnan, K. N. Barish,A. Aparin,A. M. Schmah,Vipul Bairathi,S. Mioduszewski, Robert Pak,B. S. Page, T. Nonaka,H. Pei,S. S. Shi,A. Vossen,A. Bhasin,J. Sandweiss, M. Cherney,D. N. Svirida, B. Mohanty,T. Sugiura,Y. Wu, W. G. Li, Z. Ahammed, H. Zbroszczyk,Gene Van Buren,C. Zhou,K. Oh, L. Ma, J. D. Negrete,M. M. Mondal, Carl A. Gagliardi,John Nelson,Liang Zhang,J. Kvapil,P. Szymanski, N. K. Pruthi, Kevin Adkins,Anthony Robert Timmins, B. Stringfellow,Saehanseul Oh,S. Horvat, L. Kochenda, A. Lipiec,G. Agakishiev,Alexandre Alarcon Do Passo Suaide, D. Cebra,Ernst Sichtermann,J. B. Zhang, A. Hirsch,O. Matonoha, L. Krauth,W. Solyst,R. Sikora,Yu-Gang Ma, K. Kauder, J. Lidrych,J. Bryslawskyj, M. Lomnitz,J. M. Butterworth, E. Shahaliev,Manuel Calderon De La Barca Sanchez,E. G. Judd,Joachim Schambach, Dave Underwood,R. Seto, A. Kechechyan, J. Seger, E. C. Aschenauer,Juan M. Romero, D. Tlusty,J. Engelage,Feng-Han Chang,J. Vanek,N. Smirnov, J. Fedorisin, Jeffery Landgraf,T. Todoroki, Joern Putschke,M. Nie, H. Z. Huang, Nasim,D. Mishra,Cheng Li,D. Mayes,W. J. Llope, S. Stanislaus,H. Liu,K. Jiang,A. Jentsch, M. Zyzak,Q. Yang,Xiangming Sun,Qinghua Xu,Evan Finch,D. Keane,S. Luo, J. C. Mei,S. Kabana,K. Meehan, G. Odyniec,William Jacobs,Richard Lednicky, A. Lebedev,A. Hamed, G. Contin,C. Dilks, S. Vokal, F. Wang, P. Chaloupka, F. Atetalla,Sabita Das,J. D. Brandenburg,Wei Xie,H. S. Matis, H. Wieman,John William Harris,A. V. Brandin,Yi Wang,I. Alekseev,Yi Yang,O. Eyser, P. Kravtsov, R. Fatemi,Paul Sorensen,C. A. Tomkiel,T. Galatyuk,A. J. Bassill, H. Caines,Liang He,Jeff Porter, D. Mallick, R. Aoyama,N. Kulathunga, S. Jowzaee,O. D. Tsai,Lanny Ray, B. Surrow,P. Federic,Z. Xiao,Prithwish Tribedy, George Igo,Xianglei Zhu,N. R. Sahoo, I. Kisel,J. R. Adams,A. A. Derevschikov,C. Flores,C. Kim,Thomas Ullrich, R. Lacey,I. Bunzarov,Z. Chang,A. Kisiel,John M. Campbell,Ming Shao,G. Nigmatkulov,S. Zhang,N. N. Ajitanand,I. M. Deppner,Anik Gupta,T. Lin,L. Kramarik,Y. Liang, J. Bielcikova,P. Liu,Z. Ye,P. V. Shanmuganathan,M. U. Ashraf, L. Holub, R. Witt,J. Rusnak,Aihong Tang,N. Schmitz,Peng Huo,Michal Sumbera,J. C. Dunlop,J. Xu,A. Quintero,Jiangyong Jia, R. J. Reed

PHYSICS LETTERS B(2018)

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摘要
We present a measurement of inclusive J/psi production at mid-rapidity (vertical bar y vertical bar < 1) in p+p collisions at a center-of-mass energy of root s = 200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for J/psi as a function of transverse momentum (p(T)) for 0 < p(T) < 14 GeV/c and the total cross section are reported and compared to calculations from the color evaporation model and the non-relativistic Quantum Chromodynamics model. The dependence of J/psi relative yields in three p(T) intervals on charged-particle multiplicity at mid-rapidity is measured for the first time in p+p collisions at root s = 200 GeV and compared with that measured at root s = 7 TeV, PYTHIA8 and EPOS3 Monte Carlo generators, and the Percolation model prediction. (C) 2018 The Author(s). Published by Elsevier B.V.
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关键词
Quarkonium,p plus p collisions,Multiple parton interactions,Charged-particle multiplicity
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