First study of the structure of e+e- -> b bbar g events and limits on the anomalous chromomagnetic moment of the b-quark

dc.creatoral, Kenji Abe et
dc.date1999-03-04
dc.date.accessioned2026-07-07T12:02:30Z
dc.date.available2026-07-07T12:02:30Z
dc.descriptionThe structure of e+e- -> b bbar g events was studied using Z0 decays recorded in the SLD experiment at SLAC. Three-jet final states were selected and the CCD-based vertex detector was used to identify two of the jets as b or bbar. Distributions of the gluon energy and polar angle were measured over the full kinematic range for the first time, and compared with perturbative QCD predictions. The energy distribution is potentially sensitive to an anomalous b chromomagnetic moment kappa. We measured kappa to be consistent with zero and set the first limits on its value, -0.17 < kappa < 0.11 at 95% c.l.
dc.description17 pages latex including 3 figures in eps format, submitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/hep-ex/9903004
dc.identifierhttp://arxiv.org/abs/hep-ex/9903004
dc.identifierPhys.Rev.D60:092002,1999
dc.identifierdoi:10.1103/PhysRevD.60.092002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207461
dc.subjectHigh Energy Physics - Experiment
dc.titleFirst study of the structure of e+e- -> b bbar g events and limits on the anomalous chromomagnetic moment of the b-quark
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