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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...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2018
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysbps.2019.03.002 http://cds.cern.ch/record/2652543 |
_version_ | 1780960980840218624 |
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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 |
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