Complementarity of Bs→μ+μ− and B→Kℓ+ℓ− in New Physics searches
| Autor: | Damir Becirevic, Nejc Košnik, Elia Schneider, Federico Mescia |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Large Hadron Collider 010308 nuclear & particles physics Physics beyond the Standard Model Scalar (mathematics) Lattice field theory Form factor (quantum field theory) Supersymmetry Lattice QCD 01 natural sciences Atomic and Molecular Physics and Optics Standard Model 0103 physical sciences 010306 general physics |
| Zdroj: | Nuclear Physics B - Proceedings Supplements. 234:177-180 |
| ISSN: | 0920-5632 |
| Popis: | This year, LHC provided a very stringent bound on Br ( B s → μ + μ − ) , bringing it closer to the value predicted by the Standard Model (SM). B s → μ + μ − was believed to be the golden mode at LHCb to find SUSY because a large enhancement was expected in the regime of moderate and large values of tan β. Other scenarios are still possible and a correlation with other decay channels is needed. We show that a complementary information on New Physics (NP) can be obtained model-indepedently from the B → K l + l − decay mode. We provide a prediction Br ( B → K l + l − ) based on the first lattice QCD results for all three relevant form factors, f 0 , + ( q 2 ) and f T ( q 2 ) . We were then able to provide the model-independent bounds on the complex couplings to scalar and pseudoscalr operators in the b → s sector. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect