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<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.

J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV / Adam, J., Adamczyk, L., Adams, J.R., Adkins, J.K., Agakishiev, G., Aggarwal, M.M., Ahammed, Z., Ajitanand, N.N., Alekseev, I., Anderson, D.M., Aoyama, R., Aparin, A., Arkhipkin, D., Aschenauer, E.C., Ashraf, M.U., Atetalla, F., Attri, A., Averichev, G.S., Bai, X., Bairathi, V., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 786:(2018), pp. 87-93. [10.1016/j.physletb.2018.09.029]

J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV

Contin, G.;
2018-01-01

Abstract

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
File in questo prodotto:
File Dimensione Formato  
1-s2.0-S0370269318307305-main.pdf

accesso aperto

Tipologia: Documento in Versione Editoriale
Licenza: Creative commons
Dimensione 555.15 kB
Formato Adobe PDF
555.15 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2940529
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 49
  • ???jsp.display-item.citation.isi??? 35
social impact