Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-09
Phys.Rev.D65:017701,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 3 eps figures, version to appear in PRD
Scientific paper
10.1103/PhysRevD.65.017701
If one has Abelian flavor symmetry, $s_R$-$b_R$ mixing could be near maximal. This can drive a "strange-beauty" squark ($\widetilde{sb}_{1}$) to be rather light, but still evade the $b\to s\gamma$ constraint. Low energy constraints imply that all other superpartners are at TeV scale, except for a possibly light neutralino, $\widetilde \chi_1^0$. Whether light or heavy, the $\widetilde{sb}_{1}$ can impact on the $B_s$ system: $\Delta m_{B_s}$ and indirect CP phase, even for $B_s \to \phi\gamma$. Direct search is similar to usual $\tilde b \to b\widetilde \chi_1^0$, but existing bounds are weakened by $\widetilde{sb}_{1} \to s\widetilde \chi_1^0$ possibility. All these effects could be studied soon at the Tevatron.
Arhrib Abdesslam
Chua Chun-Khiang
Hou Wei-Shu
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