Measurement of charm and bottom production from semileptonic hadron decays in p+p collisions at s =200 GeV

Summary, in English

Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at s=200 GeV are presented. The measurements proceed through displaced-vertex analyses of electron tracks from the semileptonic decay of charm and bottom hadrons using the PHENIX silicon-vertex detector. The relative contribution of electrons from bottom decays to inclusive heavy-flavor-electron production is found to be consistent with fixed-order-plus-next-to-leading-log perturbative-QCD calculations within experimental and theoretical uncertainties. These new measurements in p+p collisions provide a precision baseline for comparable forthcoming measurements in A+A collisions. © 2019 authors. Published by the American Physical Society.

• Author: C. Aidala; Anders Oskarsson; David Silvermyr; L. Zou
• Department/s: Particle and nuclear physics
• Publishing year: 2019
• Language: English
• Publication/Series: Physical Review D
• Volume: 99
• Issue: 9
• Links: http://dx.doi.org/10.1103/PhysRevD.99.092003
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 2470-0010