Rate difference between b $\to$ s mu^+ mu^- and b $\to$ s e^+e^- in SUSY with large tan$β$
| dc.creator | Wang, Yili | |
| dc.creator | Atwood, David | |
| dc.date | 2003-04-25 | |
| dc.date | 2003-11-28 | |
| dc.date.accessioned | 2026-07-07T11:31:24Z | |
| dc.date.available | 2026-07-07T11:31:24Z | |
| dc.description | We study the inclusive semileptonic rare decay $b \to s l^+ l^-$ in minimal supergravity model (mSUGRA). If tan$β$ is large, down-type quark mass matrices and their Yukawa couplings cannot be diagonalized at the same basis. This induces the flavor violating neutral Higgs boson couplings. These couplings contribute significantly to decay $b \to s mu^+ mu^-$ and $b \to s tau^+ tau^-$, but negligible to $b \to s e^+ e^-$ decay because of its negligible $m_e$ mass. The ratio $R \equiv B(b \to s mu^+ mu^-)/ B(b \to s e^+ e^-)$ can be very different from its corresponding value in the Standard Model. We find that part of parameter space can accommodate a large R value, and that maximum R value can be larger than 2. We also present our results in $b \to s tau^+ tau^-$ decay channel. Although it can be not detected now, it is potentially a new channel for the future observation of new physics. | |
| dc.description | 9 pages and 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0304248 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0304248 | |
| dc.identifier | Phys.Rev.D68:094016,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.68.094016 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197257 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Rate difference between b $\to$ s mu^+ mu^- and b $\to$ s e^+e^- in SUSY with large tan$β$ | |
| dc.type | text |