Article
Measurement of single muons at forward rapidity in p+p collisions at root s=200 GeV and implications for charm production
Physical Review D
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
11-1-2007
DOI
10.1103/PhysRevD.76.092002
Abstract
Muon production at forward rapidity (1.5 <=|eta|<= 1.8) has been measured by the PHENIX experiment over the transverse momentum range 1 <= p(T)<= 3 GeV/c in root s=200 GeV p+p collisions at the Relativistic Heavy Ion Collider. After statistically subtracting contributions from light hadron decays an excess remains which is attributed to the semileptonic decays of hadrons carrying heavy flavor, i.e. charm quarks or, at high p(T), bottom quarks. The resulting muon spectrum from heavy flavor decays is compared to PYTHIA and a next-to-leading-order perturbative QCD calculation. PYTHIA is used to determine the charm quark spectrum that would produce the observed muon excess. The corresponding differential cross section for charm quark production at forward rapidity is determined to be d sigma(c (c) over bar)/dy|(y=1.6)=0.243 +/- 0.013(stat.)+/- 0.105(data syst.)(-0.087)(+0.049)(PYTHIA syst.) mb.
Copyright Owner
American Physical Society
Copyright Date
2007
Language
en
File Format
application/pdf
Citation Information
S. S. Adler, Sergey Belikov, S. Bhagavatula, Paul Constantin, et al.. "Measurement of single muons at forward rapidity in p+p collisions at root s=200 GeV and implications for charm production" Physical Review D Vol. 76 Iss. 9 (2007) p. 092002 Available at: http://works.bepress.com/craig-ogilvie/191/
This article is published as Adler, S. S., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas et al. "Measurement of single muons at forward rapidity in p+ p collisions at s= 200 GeV and implications for charm production." Physical Review D 76, no. 9 (2007): 092002. DOI:10.1103/PhysRevD.76.092002. Posted with permission.