Measurement of $J/\psi$ at forward and backward rapidity in $p$+$p$, $p$$+A$l, $p$$+A$u, and ${}^3$He+Au collisions at $\sqrt{s_{{}_{NN}}}=200\mathrm{GeV}$

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 $J/\psi$ measurements at forward and backward rapidity in various small collision systems, $p$$+$$p$, $p$$+$Al, $p$$+$Au and ${}^3$He$+$Au, at $\sqrt{s_{{}_{NN}}}$=200 GeV. The results are presented in the form of the observable $R_{AB}$, the nuclear modification factor, a measure of the ratio of the $J/\psi$ 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 $J/\psi$ production with different projectile sizes $p$ and ${}^3$He, 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$$+$Au and ${}^3$He$+$Au. However, for 0%--20% central collisions at backward rapidity, the modification for ${}^3$He$+$Au is found to be smaller than that for $p$$+$Au, with a mean fit to the ratio of $0.89\pm 0.03$(stat)$\pm 0.08$(syst), possibly indicating final state effects due to the larger projectile size.

arXiv comment362 authors, 68 institutions, 23 pages, 28 figures, 3 tables, 2014 and 2015 data. v3 is version accepted for publication in Phys. Rev. C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

References in corpus (50)

• A Brief Introduction to PYTHIA 8.1
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework
• EPPS16: Nuclear parton distributions with LHC data
• Creating small circular, elliptical, and triangular droplets of quark-gluon plasma
• Detailed measurement of the e+e- pair continuum in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV and implications for direct photon production
• Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central $d$$+$Au Collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Heavy Quark Production in p+p and Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN)=200 GeV
• Mid-Rapidity Neutral Pion Production in Proton-Proto Collisions at sqrt(s_NN) = 200 GeV
• Towards an automated tool to evaluate the impact of the nuclear modification of the gluon density on quarkonium, D and B meson production in proton-nucleus collisions
• Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions
• Improved version of the PHOBOS Glauber Monte Carlo
• Sequential Regeneration of Charmonia in Heavy-Ion Collisions
• Measurement of long-range angular correlation and quadrupole anisotropy of pions and (anti)protons in central $d$$+$Au collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Measurements of elliptic and triangular flow in high-multiplicity ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Charmonium in Medium: From Correlators to Experiment
• Non-Abelian energy loss in cold nuclear matter
• HELAC-Onia: an automatic matrix element generator for heavy quarkonium physics
• Gluon Shadowing in Heavy-Flavor Production at the LHC
• Quark pair production in high energy pA collisions: General features
• Narrowing the uncertainty on the total charm cross section and its effect on the J/ψ cross section
• Cold Nuclear Matter Effects on J/psi Yields as a Function of Rapidity and Nuclear Geometry in Deuteron-Gold Collisions at sqrt(s_NN) = 200 GeV
• Nuclear modification of psi^prime, chi_c and J/psi production in d+Au collisions at sqrt(s_NN) = 200 GeV
• Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV
• Measurement of quarkonium production in proton--lead and proton--proton collisions at $5.02$ $\mathrm{TeV}$ with the ATLAS detector
• Centrality categorization for R_{p(d)+A} in high-energy collisions
• J/$\psi$ production and nuclear effects in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Transverse-Momentum Dependence of the J/psi Nuclear Modification in d+Au Collisions at sqrt(s_NN)=200 GeV
• Signatures of the Color Glass Condensate in J/Psi production off nuclear targets
• Study of $J/\psi$ production and cold nuclear matter effects in $p$Pb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$
• Measurement of prompt and nonprompt J/psi production in pp and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Suppression of $\psi$(2S) production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Centrality dependence of inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• In-Medium Charmonium Production in Proton-Nucleus Collisions
• Azimuthal Anisotropy Relative to the Participant Plane from AMPT in Central p+Au, d+Au, and ${}^3$He+Au Collisions at $\sqrt{s_{NN}}=200$ GeV
• Pseudorapidity dependence of particle production and elliptic flow in asymmetric nuclear collisions of $p$$+$Al, $p$$+$Au, $d$$+$Au, and ${}^3$He$+$Au at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Shadowing Effects on $J/\psi$ and ${\rm Y}$ Production at the LHC
• Impact parameter dependence of the nuclear modification of J/psi production in d+Au collisions at sqrt(S_NN) = 200 GeV
• Charmonium suppression in p-A collisions
• Measurements of $\mu \mu$ pairs from open heavy flavor and Drell-Yan in $p+p$ collisions at $\sqrt{s}=200$ GeV
• The PHENIX Forward Silicon Vertex Detector
• Centrality dependence of $\psi$(2S) suppression in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}$ = 5.02 TeV
• Study of $\psi (2S)$ production and cold nuclear matter effects in pPb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$
• Measurement of the relative yields of $\psi (2S)$ to $\psi (1S)$ mesons produced at forward and backward rapidity in $p$$+$$p$, $p$$+$Al, $p$$+$Au, and ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Measurement of prompt $\psi$(2S) production cross sections in proton-lead and proton-proton collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Heavy-flavour production in high-energy d-Au and p-Pb collisions
• Measurement of differential $J/\psi$ production cross-sections and forward-backward ratio in p+Pb collisions with the ATLAS detector
• Forward and midrapidity charmonium production at RHIC
• Nuclear-modification factor of charged hadrons at forward and backward rapidity in $p$$+$Al and $p$$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• $\mathrm{J}/\psi$ production at low transverse momentum in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Cited by in corpus (11)

• The ALICE experiment: a journey through QCD
• The Present and Future of QCD
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Reweighted nuclear PDFs using Heavy-Flavor Production Data at the LHC: nCTEQ15_rwHF & EPPS16_rwHF
• Study of $\varphi$-meson production in $p$$+$Al, $p$$+$Au, $d$$+$Au, and ${}^3$He$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Measurement of cold nuclear matter effects for inclusive $J/\psi$ in $p$+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Towards quarkonium formation time determination
• Observation of the charged-particle multiplicity dependence of ${\sigma }_{\psi (2S)}/{\sigma }_{\text{J}/\psi }$ in pPb collisions at 8.16 TeV
• Multiplicity dependence of ${\rm Y}$ production at forward rapidity in pp collisions at $\sqrt{s}$ = 13 TeV
• Quarkonium production: An experimental overview
• Inclusive diffractive heavy quarkonium photoproduction including quark subprocesses