Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-04-12
Eur.Phys.J.C21:567-575,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 6 figures. Version to appear in Eur. Phys. J. C
Scientific paper
10.1007/s100520100758
Recent results from Belle and BaBar Collaborations hint at a small $\sin2\phi_1$, while the measured $B\to\pi\pi$ rate also seems to be on the low side. Supersymmetric (SUSY) models with down squark mixings can account for the deficits in both cases. By studying the origin of SUSY contributions that could impact on $B^0_d$--$\bar B^0_d$ mixing and $B\to\pi\pi$ decay, we find that the former would most likely arise from left-left or right-right squark mixings, while the latter would come from left-right squark mixings. These two processes in general are not much correlated in the Minimum Supersymmetric Standard Model. If the smallness of $B\to\pi\pi$ is due to SUSY models, one would likely have large $B\to\rho\gamma$ from chiral enhancement, and the rate could be within present experimental reach. Even if $B\to\rho\gamma$ is not greatly enhanced, it could have large mixing dependent CP violation.
Arhrib Abdesslam
Chua Chun-Khiang
Hou Wei-Shu
No associations
LandOfFree
Supersymmetric Model Contributions to $B^0_d$--$\bar B^0_d$ Mixing and $B\toππ,ργ$ Decays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Supersymmetric Model Contributions to $B^0_d$--$\bar B^0_d$ Mixing and $B\toππ,ργ$ Decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supersymmetric Model Contributions to $B^0_d$--$\bar B^0_d$ Mixing and $B\toππ,ργ$ Decays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-441621