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  • J/ψ production cross sectio...
    Adams, J.R.; Aggarwal, M.M.; Alekseev, I.; Aparin, A.; Averichev, G.S.; Bai, X.; Bellwied, R.; Bielcik, J.; Bunzarov, I.; Butterworth, J.; Calderón de la Barca Sánchez, M.; Chankova-Bunzarova, N.; Crawford, H.J.; Deppner, I.M.; Elsey, N.; Eppley, G.; Esumi, S.; Fisyak, Y.; Galatyuk, T.; Gibson, A.; Guryn, W.; Hamad, A.I.; Harlenderova, A.; Heppelmann, S.; Huang, S.L.; Huo, P.; Ke, H.W.; Kim, C.; Kisel, I.; Kochenda, L.; Krauth, L.; Kwasizur, J.H.; Lednicky, R.; Li, X.; Li, C.; Lidrych, J.; Lisa, M.A.; Liu, H.; Llope, W.J.; Lomnitz, M.; Ma, G.L.; Ma, L.; Ma, R.; Magdy, N.; Matis, H.S.; Matonoha, O.; Mazer, J.A.; Mei, J.C.; Mishra, D.; Mohanty, B.; Nasim, Md; Negrete, J.D.; Nelson, J.M.; Nie, M.; Olvitt, D.; Page, B.S.; Pei, H.; Porter, J.; Przybycien, M.; Ray, R.L.; Rusnakova, O.; Schmidke, W.B.; Seck, F.; Sergeeva, M.; Seyboth, P.; Shahaliev, E.; Shanmuganathan, P.V.; Shao, M.; Shen, W.Q.; Shen, F.; Shi, S.S.; Siejka, S.; Sikora, R.; Singha, S.; Smirnov, N.; Srivastava, B.; Stewart, D.J.; Stringfellow, B.; Sumbera, M.; Sun, Y.; Szymanski, P.; Tang, A.H.; Thomas, J.H.; Tu, B.; Underwood, D.G.; Van Buren, G.; Vassiliev, I.; Wang, G.; Wang, F.; Wissink, S.W.; Xie, G.; Xu, J.; Xu, N.; Yang, S.; Yang, C.; Yip, K.; Zhang, X.P.; Zhang, S.; Zhong, C.; Zhu, Z.

    Physics letters. B, 11/2018, Volume: 786
    Journal Article

    We 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<pT<14GeV/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.