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Title: Single Electrons from Heavy-Flavor Decays in p+p Collisions at {radical}(s)=200 GeV

Abstract

The invariant differential cross section for inclusive electron production in p+p collisions at {radical}(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{sub 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{sub 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}{sub cc}=0.92{+-}0.15(stat){+-}0.54(syst) mb.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States) (and others)
Publication Date:
OSTI Identifier:
20776970
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevLett.96.032001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B QUARKS; BROOKHAVEN RHIC; CHARM PARTICLES; DIFFERENTIAL CROSS SECTIONS; ELECTRON SPECTRA; ELECTRONS; FLAVOR MODEL; GEV RANGE 100-1000; INCLUSIVE INTERACTIONS; LEPTONIC DECAY; MESONS; PAIR PRODUCTION; PARTICLE RAPIDITY; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; QUARK-ANTIQUARK INTERACTIONS; RESONANCE PARTICLES; SEMILEPTONIC DECAY; TOTAL CROSS SECTIONS; TRANSVERSE MOMENTUM

Citation Formats

Adler, S.S., Aidala, C., Aronson, S.H., Chujo, T., David, G., Desmond, E.J., Ewell, L., Franz, A., Guryn, W., Haggerty, J.S., Harvey, M., Johnson, B.M., Kistenev, E., Kroon, P.J., Makdisi, Y.I., Mioduszewski, S., Mitchell, J.T., Morrison, D.P., O'Brien, E., and Pinkenburg, C. Single Electrons from Heavy-Flavor Decays in p+p Collisions at {radical}(s)=200 GeV. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.032001.
Adler, S.S., Aidala, C., Aronson, S.H., Chujo, T., David, G., Desmond, E.J., Ewell, L., Franz, A., Guryn, W., Haggerty, J.S., Harvey, M., Johnson, B.M., Kistenev, E., Kroon, P.J., Makdisi, Y.I., Mioduszewski, S., Mitchell, J.T., Morrison, D.P., O'Brien, E., & Pinkenburg, C. Single Electrons from Heavy-Flavor Decays in p+p Collisions at {radical}(s)=200 GeV. United States. doi:10.1103/PhysRevLett.96.032001.
Adler, S.S., Aidala, C., Aronson, S.H., Chujo, T., David, G., Desmond, E.J., Ewell, L., Franz, A., Guryn, W., Haggerty, J.S., Harvey, M., Johnson, B.M., Kistenev, E., Kroon, P.J., Makdisi, Y.I., Mioduszewski, S., Mitchell, J.T., Morrison, D.P., O'Brien, E., and Pinkenburg, C. Fri . "Single Electrons from Heavy-Flavor Decays in p+p Collisions at {radical}(s)=200 GeV". United States. doi:10.1103/PhysRevLett.96.032001.
@article{osti_20776970,
title = {Single Electrons from Heavy-Flavor Decays in p+p Collisions at {radical}(s)=200 GeV},
author = {Adler, S.S. and Aidala, C. and Aronson, S.H. and Chujo, T. and David, G. and Desmond, E.J. and Ewell, L. and Franz, A. and Guryn, W. and Haggerty, J.S. and Harvey, M. and Johnson, B.M. and Kistenev, E. and Kroon, P.J. and Makdisi, Y.I. and Mioduszewski, S. and Mitchell, J.T. and Morrison, D.P. and O'Brien, E. and Pinkenburg, C.},
abstractNote = {The invariant differential cross section for inclusive electron production in p+p collisions at {radical}(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{sub 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{sub 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}{sub cc}=0.92{+-}0.15(stat){+-}0.54(syst) mb.},
doi = {10.1103/PhysRevLett.96.032001},
journal = {Physical Review Letters},
number = 3,
volume = 96,
place = {United States},
year = {Fri Jan 27 00:00:00 EST 2006},
month = {Fri Jan 27 00:00:00 EST 2006}
}