Details

Autor(en) / Beteiligte

• Alok, Ashutosh Kumar
• Datta, Alakabha
• Dighe, Amol
• Duraisamy, Murugeswaran
• Ghosh, Diptimoy
• London, David

Titel

New physics in b → sμ+μ−: CP-violating observables

Ist Teil von

• The journal of high energy physics, 2011-11, Vol.2011 (11), Article 122

Ort / Verlag

Berlin/Heidelberg: Springer-Verlag

Erscheinungsjahr

2011

Quelle

SpringerNature Journals

Beschreibungen/Notizen

• A bstract We perform a comprehensive study of the impact of new-physics operators with different Lorentz structures on CP-violating observables involving the b → sμ + μ − transition. We examine the effects of new vector-axial vector (VA), scalar-pseudoscalar (SP) and tensor (T) interactions on the CP asymmetries in the branching ratios and forward-backward asymmetries of , , , , and . In , we also explore the direct CP asymmetries in the longitudinal polarization fraction f L and the angular asymmetries and A LT , as well as the triple-product CP asymmetries and . We find that, in almost all cases, the CP-violating observables are sensitive only to new physics which involves VA operators. The VA new physics may therefore be unambiguously identified by a combined analysis of future measurements of these CP-violating observables.