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The D0 Dimuon Charge Asymmetry and Baryon Asymmetry of the Universe

The D0 collaboration has reported a 3.2 σdeviation from the Standard Model (SM) prediction in the like-sign dimuon charge asymmetry. New physics beyond the SM in B_s - \bar B_s mixing is needed to explain the data. In this paper, we investigate the possible extension of the SM with one generation color-triplet charged scalar as well as three generation Majorana fermions. We study the implications of the model on the D0's dimuon charge asymmetry as well as matter anti-matter asymmetry of the Universe.

preprint2010arXivOpen access
Wei ChaoYong-chao Zhang
hep-ph
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Wei ChaoYong-chao Zhang

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