Measurement of the bottom quark contribution to nonphotonic electron production in p+p collisions at √s=200GeV

doi:10.1103/PHYSREVLETT.105.202301

Open AccessJournal ArticleDOI

Measurement of the bottom quark contribution to nonphotonic electron production in p+p collisions at √s=200GeV

Madan M. Aggarwal, +386 more

- 12 Nov 2010 -

Physical Review Letters

- Vol. 105, Iss: 20, pp 202301-202301

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TLDR

In this article, the contribution of B meson decays to non-photonic 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 electron and hadrons.

Abstract:

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).

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