Bernat Capdevila - Patterns of New Physics in b→sℓ+ℓ− transitions in the light of recent data
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Europe/Madrid
Seminar (IFAE)
Seminar
IFAE
Joern Lange
(IFAE Barcelona), Michael Leyton
(IFAE), Stefano Terzo
(IFAE)
Description
In the Standard Model (SM), the rare transitions where a bottom quark decays into a strange quark and a pair of light leptons exhibit a potential sensitivity to physics beyond the SM. In addition, the SM embeds Lepton Flavour Universality (LFU), leading to almost identical probabilities for muon and electron modes. The LHCb collaboration discovered a set of deviations from the SM expectations in decays to muons and also in ratios assessing LFU. Other experiments (Belle, ATLAS, CMS) found consistent measurements, albeit with large error bars. To assess the extend of potential New Physics effects, we perform a global fit to all available b→sℓ+ℓ− data (l = e,μ) in a model-independent way. In this seminar, I will introduce to you the techniques used for the computation of the relevant observables in b→sℓ+ℓ− transitions, paying special attention to the treatment of hadronic uncertainties, and present the latest results of our global analysis.
Participants
Alba Fernández-Barral
Alícia Labián
Armando Quispe
Bruno Bourguille
Chihaya Anzai
César Jesús
Daniel Guberman
David Vázquez Furelos
Eric Peregrina
Isaac Esparbé
Joaquim Palacio Navarro
Judit Prat
Juli Mundet
Leyre Nogués
Lluïsa-M. Mir
Machiel Kolstein
mariano quiros
Martine Bosman
Matteo Cavalli-Sforza
Merve Colak
Pere Masjuan
Pilar Casado
Rafel Escribano
Raimon Casanova
Ramon Miquel
Scott Griffiths
Stefano Terzo
Tarek Hassan
Thomas Kosc
Thorsten Lux
Victor Cancer
13:00
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13:05
Introduction and General Announcements5m
Speakers:
Joern Lange
(IFAE Barcelona), DrMichael Leyton
(IFAE), DrStefano Terzo
(IFAE)