Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

1-2006

Journal or Book Title

Physical Review Letters

Volume

96

Issue

3

First Page

032001

DOI

10.1103/PhysRevLett.96.032001

Abstract

The invariant differential cross section for inclusive electron production in p+p collisions at root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.4 <= p(T) <= 5.0 GeV/c in the central rapidity region (vertical bar eta vertical bar <= 0.35). The contribution to the inclusive electron spectrum from semileptonic decays of hadrons carrying heavy flavor, i.e., charm quarks or, at high p(T), bottom quarks, is determined via three independent methods. The resulting electron spectrum from heavy-flavor decays is compared to recent leading and next-to-leading order perturbative QCD calculations. The total cross section of charm quark-antiquark pair production is determined to be sigma(c (c) over bar) = 0.92 +/- 0.15(stat) +/- 0.54(syst) mb.

Comments

This article is published as Adler, Stephen Scott, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas et al. "Single Electrons from Heavy-Flavor Decays in p+ p Collisions at s= 200 GeV." Physical review letters 96, no. 3 (2006): 032001. DOI: 10.1103/PhysRevLett.96.032001. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Share

COinS