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Cross section for bb¯ production via dielectrons in d + Au collisions at √sNN = 200 GeV

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PHENIX Collaboration. (2015). Cross section for bb¯ production via dielectrons in d + Au collisions at √sNN = 200 GeV. Physical Review C, 91 (1), 014907. doi:10.1103/PhysRevC.91.014907
Published in
Physical Review C
Authors
PHENIX Collaboration |
Kim, Dong Jo |
Rak, Jan
Date
2015
Discipline
Fysiikka
Copyright
© 2015 American Physical Society. Published in this repository with the kind permission of the publisher.

 
We report a measurement of e+e− pairs from semileptonic heavy-flavor decays in d + Au collisions at √sNN = 200 GeV. By exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to PYTHIA and MC@NLO simulations. The resulting bb¯-production cross section is σdAu bb¯ = 1.37 ± 0.28 (stat) ± 0.46 (syst) mb, which is equivalent to a nucleon-nucleon cross section of σ NN bb = 3.4 ± 0.8 (stat) ± 1.1 (syst) μb.
Publisher
American Physical Society
ISSN Search the Publication Forum
0556-2813
Keywords
measurement of e+e- pairs semileptonic heavy-flavor decays d+Au collisions at sNN=200 GeV
DOI
https://doi.org/10.1103/PhysRevC.91.014907
URI

http://urn.fi/URN:NBN:fi:jyu-201602011375

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