6533b7d8fe1ef96bd126b7e4
RESEARCH PRODUCT
New global fits to $b \to s$ data with all relevant parameters
Tobias HurthFarvah MahmoudiFarvah MahmoudiAlexandre ArbeyAlexandre ArbeyS. Neshatpoursubject
Nuclear and High Energy PhysicsParticle physicsPhysics beyond the Standard ModelHigh Energy Physics::LatticeFlavourFOS: Physical sciences01 natural sciencesHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesdecay: flavor changingB --> K muon+ muon-010306 general physicsB: rare decayParticle Physics - PhenomenologyPhysics010308 nuclear & particles physicsnew physicsneutral current: flavor changinghep-phObservableLHC-BB: branching ratio: ratioB --> K*(892) muon+ muon-High Energy Physics - Phenomenology[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentflavor: violationB/s --> Phi(1020) muon+ muon-Leptondescription
The LHCb experiment has made several measurements in $b \to s$ transitions which indicate tensions with the Standard Model predictions. Assuming the source of these tensions to be new physics, we present new global fits to all Wilson coefficients which can effectively receive beyond the Standard Model contributions. While the theoretically clean ratios $R_{K^{(*)}}$ which are sensitive to lepton flavour non-universality may unambiguously establish lepton non-universal new physics in the near future, most of the other tensions with the SM in the $b \to s$ data, in particular in the angular observables of the $B\to K^* \mu\mu$ decay and in the branching ratio of the $B_s \to \phi \mu\mu$ decay, depend on the estimates of non-factorisable power corrections. Therefore, we also analyse the dependence of the new global fit on these corrections.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-06-08 |