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Measurement of the B+/- meson nuclear modification factor in PbPb collisions at sqrt(s[NN]) = 5.02 TeV

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arxiv 1705.04727 v2 pith:Q7N4BNQ5 submitted 2017-05-12 hep-ex nucl-ex

CMS Collaboration This is my paper · ORCID
classification hep-exnucl-ex
keywords pbpbcollisionscrossenergyfactorinversemeasurementmeson
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The differential production cross sections of B+/- mesons are measured via the exclusive decay channels B+/- to J/psi K+/- to mu+ mu- K+/- as a function of transverse momentum in pp and PbPb collisions at a center-of-mass energy sqrt(s[NN]) = 5.02 TeV per nucleon pair with the CMS detector at the LHC. The pp (PbPb) dataset used for this analysis corresponds to an integrated luminosity of 28.0 inverse picobarns (351 inverse microbarns). The measurement is performed in the B+/- meson transverse momentum range of 7 to 50 GeV/c, in the rapidity interval abs(y) < 2.4. In this kinematic range, a strong suppression of the production cross section by about a factor of two is observed in the PbPb system in comparison to the expectation from pp reference data. These results are found to be roughly compatible with theoretical calculations incorporating beauty quark diffusion and energy loss in a quark-gluon plasma.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. An improved linear Boltzmann transport model for hadron and jet suppression in ultrarelativistic heavy-ion collisions

    nucl-th 2026-02 conditional novelty 6.0 of 10

    An improved LBT model with an earlier medium-scale insertion and color-flow tracking reproduces hadron and jet nuclear modification factors together in 5.02 TeV Pb+Pb collisions.

  2. Energy loss and theoretical uncertainties in small quark-gluon plasmas

    hep-ph 2025-06 conditional novelty 6.0 of 10

    A pQCD energy loss model with short-pathlength corrections shows the large formation time approximation fails self-consistently and, after a one-parameter fit, describes RHIC small systems while failing LHC small systems.

  3. Nuclear modification of $B_c$ mesons in relativistic heavy-ion collisions based on a linear Boltzmann transport model

    hep-ph 2025-02 conditional novelty 5.0 of 10

    A linear Boltzmann transport model with Yukawa and string interactions reproduces the measured B_c nuclear modification in Pb+Pb collisions and predicts larger low-pT B_c R_AA in Au+Au at RHIC than at the LHC.

  4. QGP@50: More than Four Decades of Jet Quenching

    hep-ph 2025-08 conditional novelty 2.0 of 10

    A historical and technical review of jet quenching in heavy-ion collisions, covering four decades of theory, the RHIC discovery, and modern Bayesian extractions of the jet transport parameter qhat.

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