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Leading Effect of CP Violation with Four Generations · Around

2010

Leading Effect of CP Violation with Four Generations

Hou, Wei-Shu, Mao, Yao-Yuan, Shen, Chia-Hsien

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In the Standard Model with a fourth generation of quarks, we study the relation between the Jarlskog invariants and the triangle areas in the 4-by-4 CKM matrix.

To identify the leading effects that may probe the CP violation in processes involving quarks, we invoke small mass and small angle expansions, and show that these leading effects are enhanced considerably compared to the three generation case by the large masses of fourth generation quarks.
We discuss the leading effect in several cases, in particular the possibility of large CP violation in $ b \to s $ processes, which echoes the heightened recent interest because of experimental hints.

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2010
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Talk by L. Oakes (CDF Collaboration) at Flavor Physics and CP Violation conference, Torino, Italy, May 2010

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For recent phenomenological work on the flavor and CPV side, see, for example, A. Soni, A.K. Alok, A. Giri, R. Mohanta and S. Nandi, arXiv:1002.0595 [hep-ph]; A.J. Buras, B. Duling, T. Feldmann, T. Heidsieck, C. Promberger and S. Recksiegel, arXiv:1002.2126 [hep-ph]; W.-S. Hou and C.-Y. Ma, arXiv:1004.2186 [hep-ph]; O. Eberhardt, A. Lenz and J. Rohrwild, arXiv:1005.3505 [hep-ph]

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2010

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