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ΔΓd : a forgotten null test of the standard model
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Gershon, T. J. (2010) ΔΓd : a forgotten null test of the standard model. Journal of Physics G : Nuclear and Particle Physics, Vol.38 (No.1). 015007. doi:10.1088/0954-3899/38/1/015007 ISSN 0954-3899.
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Official URL: http://dx.doi.org/10.1088/0954-3899/38/1/015007
Abstract
The recent measurement of an anomalous like-sign dimuon asymmetry by the D0 collaboration has prompted theoretical speculation on possible sources of physics beyond the standard model that may affect lifetimes and lifetime differences in neutral B meson systems. One observable that deserves closer attention is the width difference in the B0d system, ΔΓd. Since the standard model prediction for this quantity is well below 1%, it serves as a 'null test' whereby the measurement of a larger value would cleanly reveal the presence of new physics. Methods to measure ΔΓd at current and future experiments are reviewed and an attractive new approach is proposed.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | B mesons, Standard model (Nuclear physics) | ||||
Journal or Publication Title: | Journal of Physics G : Nuclear and Particle Physics | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0954-3899 | ||||
Official Date: | January 2010 | ||||
Dates: |
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Volume: | Vol.38 | ||||
Number: | No.1 | ||||
Page Range: | 015007 | ||||
DOI: | 10.1088/0954-3899/38/1/015007 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Science and Technology Facilities Council (Great Britain) (STFC), Seventh Framework Programme (European Commission) (FP7), European Research Council (ERC) |
Data sourced from Thomson Reuters' Web of Knowledge
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