An Improved Study of the Structure of e+e- -> b-bbar-g Events and Limits on the Anomalous Chromomagnetic Coupling of the b-Quark [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 2004.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 21 pages : digital, PDF file
- Additional Creators:
- Stanford Linear Accelerator Center, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- The structure of threejet e⁺e⁻ → 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 b or {bar b}; the remaining jet in each event was tagged as the gluon jet. Distributions of the gluon energy and polar angle with respect to the electron beam were measured over the full kinematic range, and used to test the predictions of perturbative QCD. The energy distribution is potentially sensitive to an anomalous b chromomagnetic moment κ at the b{bar b}g vertex. We measured κ to be consistent with zero and set 95% C.L. limits on its value, -0.07 < κ < 0.08 (preliminary).
- Report Numbers:
- E 1.99:slac-pub-8954
slac-pub-8954 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
02/10/2004.
"slac-pub-8954"
Abe, K. - Type of Report and Period Covered Note:
- Topical;
- Funding Information:
- AC03-76SF00515
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