Measurement of beauty production from dimuon events at HERA - INSPIRE

DataBETA

Measurement of beauty production from dimuon events at HERA

ZEUS

Collaboration

•

S. Chekanov
(
- Argonne
)

Sep, 2008

41 pages

Published in:

JHEP 02 (2009) 032

e-Print:

0811.0894 [hep-ex]

DOI:

10.1088/1126-6708/2009/02/032

Report number:

DESY-08-129

Experiments:

DESY-HERA-ZEUS

View in:

ADS Abstract Service

reference search26 citations

Citations per year

Abstract: (arXiv)

Beauty production in events containing two muons in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb-1. A low transverse-momentum threshold for muon identification, in combination with the large rapidity coverage of the ZEUS muon system, gives access to almost the full phase space for beauty production. The total cross section for beauty production in ep collisions at sqrt(s)= 318 GeV has been measured to be sigma_tot(ep -> bbbar X) = 13.9 +- 1.5(stat.) +4.0 -4.3(syst.) nb. Differential cross sections and a measurement of bbbar correlations are also obtained, and compared to other beauty cross-section measurements, Monte Carlo models and next-to-leading-order QCD predictions.

Note:

33 pages, 11 figures

electron p: inclusive reaction
muon: pair production
bottom: pair production
muon: transverse momentum
muon: rapidity spectrum
angular correlation: dimuon
channel cross section
differential cross section
quantum chromodynamics: perturbation theory
parton: showers

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