What question did this study set out to answer?

To measure the production cross sections of various B mesons in p+Pb collisions at 5.02 TeV.

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March 7, 2026

Study of B Meson Production in p + Pb Collisions at √sNN = 5.02 TeV Using Exclusive Hadronic Decays

Q: What does this research mean for the field?

The production cross sections of B+, B0, and Bs 0 mesons in p+Pb collisions at √sNN = 5.02 TeV are consistent with proton-proton perturbative QCD calculations scaled by the number of incoherent nucleon-nucleon collisions. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

Key Points

To measure the production cross sections of various B mesons in p+Pb collisions at 5.02 TeV.
Used the CMS detector at the CERN LHC for measurements.
Analyzed data corresponding to an integrated luminosity of 34.6 nb-1.
Focused on exclusive hadronic decays of B mesons.
Measured cross sections in transverse momentum range of 10 to 60 GeV/c.
Measured production cross sections for B+, B0, and Bs 0 mesons.
No significant modification observed compared to proton-proton QCD calculations.
Results offer a baseline for future studies of b quark energy loss in Pb+Pb collisions.

Abstract

The production cross sections of the B+, B0, and Bs 0 mesons, and of their charge conjugates, are measured via exclusive hadronic decays in p+Pb collisions at the center-of-mass energy √SNN = 5.02 TeV with the CMS detector at the CERN LHC. The data set used for this analysis corresponds to an integrated luminosity of 34.6 nb-1. The production cross sections are measured in the transverse momentum range between 10 and 60 GeV/c. No significant modification is observed compared to proton-proton perturbative QCD calculations scaled by the number of incoherent nucleon-nucleon collisions. These results provide a baseline for the study of in-medium b quark energy loss in Pb+Pb collisions.

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