Cargando…

New global fits to $b \to s$ data with all relevant parameters

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 Mod...

Descripción completa

Detalles Bibliográficos
Autores principales: Hurth, Tobias, Arbey, Alexandre, Mahmoudi, Farvah, Neshatpour, Siavash
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2019.03.002
http://cds.cern.ch/record/2652543
_version_ 1780960980840218624
author Hurth, Tobias
Arbey, Alexandre
Mahmoudi, Farvah
Neshatpour, Siavash
author_facet Hurth, Tobias
Arbey, Alexandre
Mahmoudi, Farvah
Neshatpour, Siavash
author_sort Hurth, Tobias
collection CERN
description 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.
id cern-2652543
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-26525432020-06-10T10:32:04Zdoi:10.1016/j.nuclphysbps.2019.03.002http://cds.cern.ch/record/2652543engHurth, TobiasArbey, AlexandreMahmoudi, FarvahNeshatpour, SiavashNew global fits to $b \to s$ data with all relevant parametershep-phParticle Physics - PhenomenologyThe 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.The LHCb experiment has made several measurements in b→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 RK(⁎) 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→s data, in particular in the angular observables of the B→K⁎μμ decays and in the branching ratios of the Bs→ϕμμ decays, depend on the estimates of non-factorisable power corrections. Therefore, we also analyze the dependence of the new global fit on these corrections.arXiv:1812.07602CERN-TH-2018-244IPM/P.A-514MITP/18-120oai:cds.cern.ch:26525432018-12-18
spellingShingle hep-ph
Particle Physics - Phenomenology
Hurth, Tobias
Arbey, Alexandre
Mahmoudi, Farvah
Neshatpour, Siavash
New global fits to $b \to s$ data with all relevant parameters
title New global fits to $b \to s$ data with all relevant parameters
title_full New global fits to $b \to s$ data with all relevant parameters
title_fullStr New global fits to $b \to s$ data with all relevant parameters
title_full_unstemmed New global fits to $b \to s$ data with all relevant parameters
title_short New global fits to $b \to s$ data with all relevant parameters
title_sort new global fits to $b \to s$ data with all relevant parameters
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysbps.2019.03.002
http://cds.cern.ch/record/2652543
work_keys_str_mv AT hurthtobias newglobalfitstobtosdatawithallrelevantparameters
AT arbeyalexandre newglobalfitstobtosdatawithallrelevantparameters
AT mahmoudifarvah newglobalfitstobtosdatawithallrelevantparameters
AT neshatpoursiavash newglobalfitstobtosdatawithallrelevantparameters