Study of $\psi (2S)$ production and cold nuclear matter effects in pPb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$

Abstract

The production of $\psi (2S)$ mesons is studied in dimuon final states using proton-lead collision data collected by the LHCb detector. The data sample corresponds to an integrated luminosity of $1.6{\mathrm{nb}}^{-1}$. The nucleon-nucleon centre-of-mass energy of the proton-lead collisions is $\sqrt{s_{NN}}=5\mathrm{TeV}$. The measurement is performed using $\psi (2S)$ mesons with transverse momentum less than $14\mathrm{GeV}/c$ and rapidity $y$ in the ranges $1.5<y<4.0$ and $-5.0<y<-2.5$ in the nucleon-nucleon centre-of-mass system. The forward-backward production ratio and the nuclear modification factor are determined for $\psi (2S)$ mesons. Using the production cross-section results of $\psi (2S)$ and $J/\psi$ mesons from $b$-hadron decays, the $b\bar{b}$ cross-section in pPb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$ is obtained.

arXiv comment23 pages, 7 figures and 3 tables. All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-058.html

References in corpus (28)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Big-Bang Nucleosynthesis
• LHCb Detector Performance
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• sPlot: a statistical tool to unfold data distributions
• Measurement of J/psi production in pp collisions at sqrt(s)=7 TeV
• Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at $\sqrt{s_{NN}} = 200 GeV
• Nuclear parton distributions at next to leading order
• Measurement of the track reconstruction efficiency at LHCb
• Precision luminosity measurements at LHCb
• Inclusive Hadron Productions in pA Collisions
• Heavy-quarkonium suppression in p-A collisions from parton energy loss in cold QCD matter
• Predictions for $p+$Pb Collisions at sqrt s_NN = 5 TeV
• J/psi and psi' production and their normal nuclear absorption in proton-nucleus collisions at 400 GeV
• 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
• Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at sqrt(s_NN) = 200 GeV
• Centrality and pT dependence of J/psi suppression in proton-nucleus collisions from parton energy loss
• Kinematic distributions and nuclear effects of $J/\psi$ production in 920 GeV fixed-target proton-nucleus collisions
• Study of ${\rm Y}$ production and cold nuclear matter effects in pPb collisions at $\sqrt{s_{NN}}=5\mathrm{TeV}$
• Are the $J/\psi$ and ${\chi }_{c}A$ Dependencies the Same?
• Impact parameter dependence of the nuclear modification of J/psi production in d+Au collisions at sqrt(S_NN) = 200 GeV
• A Measurement of the Psi' to J/psi Production Ratio in 920 GeV Proton-Nucleus Interactions
• Upsilon (1S+2S+3S) production in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and cold-nuclear matter effects
• Coherent photoproduction of $\psi$ and ${\rm Y}$ mesons in ultraperipheral pPb and PbPb collisions at the CERN LHC
• Open-beauty production in $p$Pb collisions at $\sqrt{s_{NN}}$=5 TeV: effect of the gluon nuclear densities
• High-Energy QCD factorization from DIS to pA collisions

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• Centrality dependence of $\psi$(2S) suppression in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}$ = 5.02 TeV
• $\psi (2S)$ versus $J/\psi$ suppression in proton-nucleus collisions from factorization violating soft color exchanges
• Measurement of $B^{+}$, $B^0$ and ${\Lambda }_b^0$ production in $p\mathrm{Pb}$ collisions at $\sqrt{s_{\mathrm{NN}}}=8.16\mathrm{TeV}$
• 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
• An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: hard probes
• Observables for possible QGP signatures in central pp collisions
• Measurement of $J/\psi$ at forward and backward rapidity in $p$+$p$, $p$$+A$l, $p$$+A$u, and ${}^3$He+Au collisions at $\sqrt{s_{{}_{NN}}}=200\mathrm{GeV}$
• J/$\psi$ production as a function of charged-particle pseudorapidity density in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• The $B_c(B_c^{\ast })$ meson production via the proton-nucleus and the nucleus-nucleus collision modes at the colliders RHIC and LHC
• Measurement of nuclear effects on $\psi (2S)$ production in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=8.16$ TeV
• Prospects for quarkonium studies at the high-luminosity LHC
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• Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Excitation function of initial temperature of heavy flavor quarkonium emission source in high energy collisions
• Fraction of ${\chi }_c$ decays in prompt $J/\psi$ production measured in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV
• Centrality dependence of J/$\psi$ and $\psi$(2S) production and nuclear modification in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Measurement of the prompt-production cross-section ratio $\sigma ({\chi }_{c2})/\sigma ({\chi }_{c1})$ in $p$Pb collisions at $\sqrt{s_{NN}}$ = 8.16 TeV
• Charmonium ground and excited states at finite temperature from complex Borel sum rules
• INFN What Next: Ultra-relativistic Heavy-Ion Collisions
• Inclusive, prompt and non-prompt $\mathrm{J}/\psi$ production at midrapidity in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Observation of the charged-particle multiplicity dependence of ${\sigma }_{\psi (2S)}/{\sigma }_{\text{J}/\psi }$ in pPb collisions at 8.16 TeV
• Prospects for quarkonium measurements in p--A and A--A collisions at the LHC
• Heavy flavour production in proton-lead and lead-lead collisions with LHCb