Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at $\sqrt {s_{NN}}$ =8.16 TeV - INSPIRE

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Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at $\sqrt {s_{NN}}$ =8.16 TeV

LHCb

Collaboration

Jul 14, 2020

13 pages

Published in:

Phys.Rev.Lett. 125 (2020) 21, 212001

Published: Nov 20, 2020

e-Print:

2007.06945 [hep-ex]

DOI:

10.1103/PhysRevLett.125.212001

Report number:

LHCb-PAPER-2020-010,
CERN-EP-2020-119

Experiments:

CERN-LHC-LHCb

View in:

reference search28 citations

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Abstract: (APS)

A study of prompt charm-hadron pair production in proton-lead collisions at sNN=8.16 TeV is performed using data corresponding to an integrated luminosity of about 30 nb-1, collected with the LHCb experiment. Production cross sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. This is the first measurement of associated production of two charm hadrons in proton-lead collisions. The results confirm the predicted enhancement of double parton scattering production in proton-lead collisions compared to the single parton scattering production.

Note:

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-010.html (LHCb public pages)

Elementary Particles and Fields
p nucleus: interaction
lead
D0: pair production
D+: pair production
D/s+: pair production
J/psi(3100): associated production
parton: multiple scattering
charm: 2
charm: associated production

References(100)

Figures(19)

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