CP violation in the B -> Kl(+)l(-) decay

Alıyev, Tahmasıb
Cornell, A. S.
Gaur, Naveen
Standard model (SM) CP asymmetries in B -> Kl(+)l(-) are expected to be very small. This feature could help in the understanding of new physics scenarios which predict the existence of CP odd phases in various Wilson coefficients. In this paper we have analyzed the B -> Kl(+)l(-) decay in scenarios beyond the SM where the Wilson coefficients have new CP odd phases. The sensitivity of the CP asymmetries on these new weak phases is discussed.


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We study the decay width and CP asymmetry of the inclusive process b-->sg (g denotes gluon) in the multi-Higgs-doublet models with complex Yukawa couplings, including next to leading QCD corrections. We analyze the dependences of the decay width and CP asymmetry on the scale mu and CP-violating parameter theta. We observe that there exists an enhancement in the decay width and CP asymmetry is at the order of 10(-2).
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We consider a standard model singlet which is accessible to a single extra dimension and its zero mode is localized with Gaussian profile around a point different from the origin. This zero-mode scalar is a possible candidate for the dark matter and its annihilation rate is sensitive to the compactification radius of the extra dimension, the localization width and the position. For the case of non-resonant annihilation, we estimated the dark matter scalar location around a point, at a distance similar to 3x...
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Citation Formats
T. Alıyev, A. S. Cornell, and N. Gaur, “CP violation in the B -> Kl(+)l(-) decay,” EUROPEAN PHYSICAL JOURNAL C, pp. 657–664, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34625.