High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200 [square root of s=200] GeV
Name
Agakishiev-2011-High p(T) nonphotoni.pdf
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Author(s)
Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Leight, William Axel
Seele, Joseph Patrick
Surrow, Bernd
Milner, Richard G
Redwine, Robert P
Steadman, Stephen G
Date Issued
March 2011
Journal
Physical review D
Publisher
American Physical Society
Citation
Agakishiev, H. et al. (STAR Collaboration) "High pT nonphotonic electron production in p+p collisions at √s=200 GeV" Phys. Rev. D 83, 052006 (2011) © 2011 American Physical Society
Version
Final published version
Abstract
We present the measurement of nonphotonic electron production at high transverse momentum (pT>2.5 GeV/c) [(p subscript T > 2.5 GeV/c)] in p+p collisions at √s=200 [square root of s=200] GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured nonphotonic electron cross sections with previously published RHIC data and perturbative quantum chromodynamics calculations. Using the relative contributions of B and D mesons to nonphotonic electrons, we determine the integrated cross sections of electrons (e++e-/2) [e superscript + plus e superscript - /2)] at 3 GeV/c
MIT Department
Bates Linear Accelerator Center
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.83.052006
