Measurement of the J/$\psi$ pair production cross-section in pp collisions at $ \sqrt{s}=13 $ TeV

Aaij, Roel; Adeva, Bernardo; Adinolfi, Marco; Ajaltouni, Ziad; Akar, Simon; Albrecht, Johannes; Alessio, Federico; Alexander, Michael; Ali, Suvayu; Alkhazov, Georgy

doi:10.1007/JHEP06(2017)047

Measurement of the J/ $\psi$ pair production cross-section in pp collisions at $\sqrt{s}=13$ TeV

LHCb

Collaboration

Dec 22, 2016

38 pages

Published in:

JHEP 06 (2017) 047,
JHEP 10 (2017) 068 (erratum)

Published: Jun 9, 2017

e-Print:

1612.07451 [hep-ex]

DOI:

10.1007/JHEP06(2017)047,
10.1007/JHEP10(2017)068 (erratum)

Report number:

CERN-EP-2016-307,
LHCB-PAPER-2016-057

Experiments:

CERN-LHC-LHCb

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Abstract: (Springer)

The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of

\sqrt{s}=13

TeV, corresponding to an integrated luminosity of 279 ±11 pb

^{−1}

. The measurement is performed for J/ψ mesons with a transverse momentum of less than 10 GeV/c in the rapidity range 2.0 < y < 4.5. The production cross-section is measured to be 15.2 ± 1.0 ± 0.9 nb. The first uncertainty is statistical, and the second is systematic. The differential cross-sections as functions of several kinematic variables of the J/ψ pair are measured and compared to theoretical predictions.

Note:

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-2016-057.html

Hadron-Hadron scattering (experiments)
Particle and resonance production
proton-proton scattering
QCD
Quarkonium
p p: scattering
p p: colliding beams
channel cross section: measured
differential cross section: measured
cross section: ratio: measured

References(121)

Figures(38)

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