Published June 2, 1999 | Version v1
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Measurement of the running b-quark Mass using e+e- → b(bar b)g events

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Description

We have studied the determination of the running b-quark mass, mb(MZ), using Z0 decays into 3 or more hadronic jets. We calculated the ratio of (ge) 3-jet fractions in e+e- → b(bar b) vs. e+e- → ql(bar q)l (ql = u or d or s) events at next-to-leading order in perturbative QCD using six different infra-red- and collinear-safe jet-finding algorithms. We compared with corresponding measurements from the SLD Collaboration and found a significant algorithm-dependence of the fitted mb(MZ) value. Our best estimate, taking correlations into account, is mb(MZ) = 2.52 ± 0.27(stat.)-0.47+0.33(syst.)-1.46+0.54(theor.) GeV/c2

Availability note (English)

Available from INIS in electronic form; Also available from PURL: https://www.osti.gov/servlets/purl/10193-BOpo4W/native/

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Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/10193-BOpo4W/native/;

Publishing Information

Imprint Pagination
20 p.
Report number
SLAC-PUB--7915

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
35052332
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ALGORITHMS; B QUARKS; ELECTRON-POSITRON INTERACTIONS; HADRONIC PARTICLE DECAY; MASS; QUANTUM CHROMODYNAMICS
Descriptors DEC
BEAUTY PARTICLES; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL LOGIC; PARTICLE DECAY; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; QUARKS

Optional Information

Contract/Grant/Project number
AC03-76SF00515
Notes
Also submitted to Physics Letters. B
Funding organization
USDOE Office of Energy Research (ER) (United States)