A Preliminary Study of the Structure of B{bar B}g Events Using Z° Decays

A Preliminary Study of the Structure of B{bar B}g Events Using Z° Decays

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Publisher:

Published: 1998

Total Pages: 25

ISBN-13:

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The structure of three-jet b{bar b}g events has been studied using hadronic Z° 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 a b or {bar b}. The distributions of the gluon energy and polar angle with respect to the electron beam were examined and were compared with perturbative QCD predictions. These distributions are potentially sensitive to an anomalous b chromomagnetic moment [kappa]. The authors measure [kappa] consistent with zero and set limits on its value.


A Preliminary Study of the Structure of B[bar B]g Events Using Z[sup 0] Decays

A Preliminary Study of the Structure of B[bar B]g Events Using Z[sup 0] Decays

Author:

Publisher:

Published: 2003

Total Pages:

ISBN-13:

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The structure of three-jet b[bar b]g events has been studied using hadronic Z[sup 0] 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 a b or[bar b]. The distributions of the gluon energy and polar angle with respect to the electron beam were examined and were compared with perturbative QCD predictions. These distributions are potentially sensitive to an anomalous b chromomagnetic moment[kappa]. The authors measure[kappa] consistent with zero and set limits on its value.


A Preliminary Improved Measurement of the B Hadron Energy Distribution in Z° Decays

A Preliminary Improved Measurement of the B Hadron Energy Distribution in Z° Decays

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Publisher:

Published: 1998

Total Pages: 35

ISBN-13:

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The authors have measured the B hadron energy distribution in Z° decays using a new technique applied to a sample of inclusive B decays recorded in the SLD experiment at SLAC between 1996 and 1997. The upgraded CCD vertex detector is used to reconstruct B-decay vertices with high efficiency and purity, and to provide precise measurements of the kinematic quantities used in this technique. For each reconstructed B-decay vertex, the part of the B energy missing from the vertex is derived from the kinematic quantities. B vertices with low missing mass are selected to provide a very high purity sample and to obtain good energy resolution. The authors compare the scaled B hadron energy distribution with the predictions of several QCD and phenomenological models of heavy quark fragmentation. The average scaled energy x{sub B} is measured to be 0.719"0.005 (stat.)"0.001 (unfolding) (preliminary).


Particle Physics Reference Library

Particle Physics Reference Library

Author: Herwig Schopper

Publisher: Springer Nature

Published: 2020

Total Pages: 632

ISBN-13: 3030382079

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This first open access volume of the handbook series contains articles on the standard model of particle physics, both from the theoretical and experimental perspective. It also covers related topics, such as heavy-ion physics, neutrino physics and searches for new physics beyond the standard model. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access


Particle Physics Reference Library

Particle Physics Reference Library

Author: Christian W. Fabjan

Publisher: Springer Nature

Published: 2020

Total Pages: 1083

ISBN-13: 3030353184

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This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access