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

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Abstract

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of Michigan
  • University of California, Riverside
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Originalspråkengelska
Artikelnummer092003
TidskriftPhysical Review D
Volym99
Utgivningsnummer9
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa