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CP violation in charged Higgs boson decays in the MSSM with complex parameters | | E. Christova
; H. Eberl
; S. Kraml
; W. Majerotto
; | | Date: |
21 May 2002 | | Journal: | Nucl.Phys. B639 (2002) 263-280; Erratum-ibid. B647 (2002) 359-360 DOI: 10.1016/S0550-3213(02)00542-4 | | Subject: | hep-ph hep-ex | | Abstract: | Supersymmetric loop contributions can lead to different decay rates of H+ o tar b and H- o bar t. We calculate the decay rate asymmetry delta^CP = frac{Gamma(H+ o tar b)-Gamma(H- o bar t)}{{Gamma(H+ o tar b)+Gamma(H- o bar t)} at next-to-leading order in the MSSM with complex parameters. We analyse the parameter dependence of delta^CP with emphasis on the phases of A_t and A_b. It turns out that the most important contribution comes from the loop with stop, sbottom, and gluino. If this contribution is present, delta^CP can go up to 10-15% for tan(beta)~10, and to ~5% for large values of tan(beta). | | Source: | arXiv, hep-ph/0205227 | | Other source: | [GID 36416] hep-ph/0207117 | | Services: | Forum | Review | PDF | Favorites | |
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