Cross section for $b\bar{b}$ production via dielectrons in d$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV

Abstract

We report a measurement of $e^{+}{e}^{-}$ pairs from semileptonic heavy-flavor decays in $d$$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV. Exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to {\sc pythia} and {\sc mc@nlo} simulations. The resulting $b\bar{b}$-production cross section is ${\sigma }_{b\bar{b}}^{d\mathrm{Au}}=1.37\pm 0.28(\mathrm{stat})\pm 0.46(\mathrm{syst})$~mb, which is equivalent to a nucleon-nucleon cross section of ${\sigma }_{bb}^{NN}=3.4\pm 0.8(\mathrm{stat})\pm 1.1(\mathrm{syst})\mu$b.

375 authors, 16 pages, 8 figures, 7 tables, 2008 data. Submitted to Phys. Rev. C Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

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Cited by in corpus (12)

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• Measurements of $\mu \mu$ pairs from open heavy flavor and Drell-Yan in $p+p$ collisions at $\sqrt{s}=200$ GeV
• Dielectron and heavy-quark production in inelastic and high-multiplicity proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Dielectron production in proton-proton collisions at $\sqrt{s}$ = 7 TeV
• Measurements of $e^{+}{e}^{-}$ pairs from open heavy flavor in $p$+$p$ and $d$+$A$ collisions at $\sqrt{s_{NN}}=200$ GeV
• Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Photon and dilepton observables: An experimental overview
• PHENIX Overview
• Dielectron production in Au$+$Au collisions at $\sqrt{s_{NN}}$=200 GeV
• Production of $b\bar{b}$ at forward rapidity in $p$+$p$ collisions at $\sqrt{s}=510$ GeV