Chung, Daniel J. H. and Garbrecht, Björn and Ramsey-Musolf, Michael J. and Tulin, Sean (2009) Yukawa interactions and supersymmetric electroweak baryogenesis. Physical Review Letters, 102 (6). Art. No. 061301. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:20090817-104331688
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We analyze the quantum transport equations for supersymmetric electroweak baryogenesis including previously neglected bottom and tau Yukawa interactions and show that they imply the presence of a previously unrecognized dependence of the cosmic baryon asymmetry on the spectrum of third generation quark and lepton superpartners. For fixed values of the CP-violating phases in the supersymmetric theory, the baryon asymmetry can vary in both magnitude and sign as a result of the squark and slepton mass dependence. For light, right-handed top and bottom quark superpartners, the baryon number creation can be driven primarily by interactions involving third generation leptons and their superpartners.
|Additional Information:||© 2009 The American Physical Society. Received 20 August 2008; published 11 February 2009. This work was supported in part by Department of Energy contracts DE-FG02-08ER41531 and DE-FG02- 95ER40896, and the Wisconsin Alumni Research Foundation. D. J. H. C. thanks L. Everett for discussion. PACS numbers: 98.80.Cq, 11.30.Fs, 12.60.Jv|
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|Deposited By:||Ruth Sustaita|
|Deposited On:||17 Aug 2009 18:12|
|Last Modified:||26 Dec 2012 11:11|
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