Abstract
Nuclear medium effects on B$^+$ meson production are studied using the binary-collision scaled cross section ratio between events of different multiplicities from proton-lead collisions. Data, collected by the CMS experiment in 2016 at a nucleon-nucleon center-of-mass energy of $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV, corresponding to an integrated luminosity of 175 nb$^{-1}$, were used. The scaling factors in the ratio are determined using a novel approach based on the Z $\to$$\mu^+\mu^-$ cross sections measured in the same events. The scaled ratio for B$^+$ is consistent with unity for all event multiplicities, putting stringent constraints on nuclear modification for heavy flavor.
Keywords
Physics
Particle physics
Nuclear physics
Meson
Production (economics)
Luminosity
Scaling
Nucleon
Center of mass (relativistic)
Energy (signal processing)
Subject Areas
High-Energy Particle Collisions Research
·Nuclear and High Energy Physics ·Physical Sciences
Particle physics theoretical and experimental studies
·Nuclear and High Energy Physics ·Physical Sciences
Quantum Chromodynamics and Particle Interactions
·Nuclear and High Energy Physics ·Physical Sciences
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