Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-09-18
Phys.Rev.D77:055019,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTex, 8 pages, 7 eps figures. Version to be published in Physical Review D
Scientific paper
10.1103/PhysRevD.77.055019
We study the FCNC $B_s \to \phi \gamma, \phi \nu \bar \nu$ and $\Lambda_b \to \Lambda \gamma, \Lambda \nu \bar \nu$ transitions in the Standard Model and in a scenario with a single Universal Extra Dimension. In particular, we focus on the present knowledge of the hadronic uncertainties and on possible improvements. We discuss how the measurements of these modes can be used to constrain the new parameter involved in the extra dimensional scenario, the radius $R$ of the extra dimension, completing the information available from B-factories. The rates of these $b \to s$ induced decays are within the reach of new experiments, such as LHCb.
Colangelo Pietro
Fazio Fulvia de
Ferrandes Rossella
Pham Tri Nang
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