Published September 2008 | Version v1
Report Open

Measurement of beauty production from dimuon events at HERA

Creators

  • 1. Argonne National Laboratory, Argonne, IL (United States)

Description

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 √(s) = 318 GeV has been measured to be σtot(ep → b anti bX) = 13.9 ± 1.5(stat.)-4.3+4.0(syst.) nb. Differential cross sections and a measurement of b anti b correlations are also obtained, and compared to other beauty cross-section measurements, Monte Carlo models and next-to-leading-order QCD predictions. (orig.)

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
41 p.
ISSN
0418-9833
Report number
DESY--08-129

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
40007335
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR CORRELATION; B ANTIQUARKS; DIFFERENTIAL CROSS SECTIONS; ELECTRON-PROTON INTERACTIONS; ELECTROPRODUCTION; EXPERIMENTAL DATA; GEV RANGE 100-1000; INCLUSIVE INTERACTIONS; INTEGRAL CROSS SECTIONS; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; PARTICLE RAPIDITY; SEMILEPTONIC DECAY; TRANSVERSE MOMENTUM
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ANTIQUARKS; B QUARKS; BASIC INTERACTIONS; BEAUTY PARTICLES; CORRELATIONS; CROSS SECTIONS; DATA; DECAY; ELECTROMAGNETIC INTERACTIONS; ELECTRON-NUCLEON INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; INFORMATION; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MATTER; MUONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; QUARKS; WEAK PARTICLE DECAY

Optional Information

Collaborations
ZEUS Collaboration