标题:Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV
作者:Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Anson, Daniel; Arkhipkin, D.; Averiche 更多
作者机构:[Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.; [Barnby, L. S.; Elhalhuli, E.; Jones, P. G.; 更多
通讯作者:Aggarwal, MM
通讯作者地址:[Aggarwal, MM]Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
来源:PHYSICAL REVIEW LETTERS
出版年:2010
卷:105
期:20
DOI:10.1103/PhysRevLett.105.202301
摘要:The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at root s = 200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of p(T) >= 5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high p(T).
收录类别:SCIE
WOS核心被引频次:59
资源类型:期刊论文
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