We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham e-Theses
You are in:

One-Loop MSSM predictions for $B_{s,d}	\rightarrow \ell^+\ell^-$ at low tan $\beta$

Tanedo, Philip (2009) One-Loop MSSM predictions for $B_{s,d}	\rightarrow \ell^+\ell^-$ at low tan $\beta$. Masters thesis, Durham University.



One of the most promising signals of new physics at colliders is the rare decay B(^0_s) → μ+μ(^-).The LHC will be the first experiment to directly probe this loop- and helicity- suppressed decay channel down to the Standard Model prediction. Deviations from the predicted branching ratio are a signature of new particles in the loops. In particular, it is well known that the MSSM prediction scales as tan(^6) β due to the supersymmetric Higgs penguin diagrams, making this a fertile testing ground for SUSY. In this study we analyse the MSSM prediction for the general B(_s,d) → ℓ+ℓ in the hertofore unexplored low tan beta region of the MSSM parameter space where interference with the box and Z-penguin diagrams could cause the branching ratio to dip below the Standard Model prediction. This decay is particularly important since it could be the first unambigious signal of new physics at the LHC and also guide the future LHCb upgrade.

Item Type:Thesis (Masters)
Award:Master of Science
Thesis Date:2009
Copyright:Copyright of this thesis is held by the author
Deposited On:08 Sep 2011 18:24

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitter