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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 544654.0, MPI für Physik / MPI für Physik
Measurement of the bottom quark contribution to non-photonic electron production in p+p collisions at \sqrt{s} =200 GeV
Authors:STAR Collaboration; Aggarwal, M. M.; Schmitz, N.; Seyboth, P.; Simon, F.; et al.
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys.Rev.Lett.
Issue / Number:105
Start Page:202301
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The contribution of $B$ meson decays to non-photonic electrons, which are mainly produced by the semi-leptonic decays of heavy flavor mesons, in $p+p$ collisions at $\sqrt{s} =$ 200 GeV has been measured using azimuthal correlations between non-photonic electrons and hadrons. The extracted $B$ decay contribution is approximately 50% at a transverse momentum of $p_{T} \geq 5$ 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 $p_{T}$.
Classification / Thesaurus:STAR
Comment of the Author/Creator:6 pages, 4 figures, accepted by PRL
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2010-236
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:1007.1200
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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