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

Autori
Aidala, C. ; ... ; Makek, Mihael ; ... ; Vukman, Nikola ; ... ; Zou, L.

Kolaboracija
PHENIX Collaboration

Izvornik
Physical review. D (2470-0010) 99 (2019), 9; 092003, 21

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
p+p collision, 200 GeV, heavy flavor, semileptonic decay, PHENIX, RHIC

Sažetak
Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at sqrt(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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA