Studies of J/$\psi$ production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV - INSPIRE

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Studies of J/ $\psi$ production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV

ALICE

Collaboration

Sep 7, 2019

27 pages

Published in:

JHEP 02 (2020) 041

Published: Feb 6, 2020

e-Print:

1909.03158 [nucl-ex]

DOI:

10.1007/JHEP02(2020)041

Report number:

CERN-EP-2019-187

Experiments:

CERN-LHC-ALICE

View in:

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Abstract: (Springer)

The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair

\sqrt{s_{\mathrm{NN}}}

= 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (R

_{AA}

). The R

_{AA}

at

\sqrt{s_{\mathrm{NN}}}

= 5.02 TeV is presented and compared with previous measurements at

\sqrt{s_{\mathrm{NN}}}

= 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.[graphic not available: see fulltext]

Note:

27 pages, 9 captioned figures, 1 table, authors from page 22, submitted to JHEP, figures at

Hadron-Hadron scattering (experiments)
J/psi(3100): production
heavy ion: scattering
hadronization: statistical
dimuon: decay
p p: scattering
hadron hadron: scattering
rapidity
transverse momentum
suppression

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