J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV
J Adam , Deryk Anderson , Fu-Kuo Chang , Xin-Nan Chen , Xin-Nan Chen , J Cheng , Y. Guo , Shi Huang , Hong-Zhong HUANG , Wei-Te Huang , Daniel Kikoła , Adam Kisiel , Leszek Kosarzewski , SS. Kumar , W. Li , Fengwei Liu , Pengfei Liu , Lin Ma , Mayer J. R. R. , Bernd Page , Jan Pluta , Joanna Porter-Sobieraj , J. Schambach , R Sikora , S. Tripathy , Cheng-Zhong Xu , J. W. Xu , S. Yang , Wuqiang Q Yang , Hanna Zbroszczyk , Liren Zhang , Jian Zhang , Jian Zhang , J Zhao , X. Zhu , Andrzej Lipiec , Sebastian Siejka , Piotr Szymański
AbstractWe present a measurement of inclusive J/ψ production at mid-rapidity (|y|<1) in p+p collisions at a center-of-mass energy of s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for J/ψ as a function of transverse momentum (pT) for 0
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/ψ relative yields in three pT intervals on charged-particle multiplicity at mid-rapidity is measured for the first time in p+p collisions at s=200 GeV and compared with that measured at s=7 TeV, PYTHIA8 and EPOS3 Monte Carlo generators, and the Percolation model prediction.
|Collective author||L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajita.....|
|Total number of authors||349|
|Journal series||Physics Letters B, ISSN 0370-2693, (A 40 pkt)|
|Publication size in sheets||0.5|
|Score||= 40.0, 19-11-2019, ArticleFromJournal|
|Publication indicators||= 4; = 0; : 2017 = 1.548; : 2018 = 4.162 (2) - 2018=3.627 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.