Flavour anomalies and (fundamental) partial compositeness

Abstract : Several measurements of B-meson decay observables show deviations from Standard Model (SM) predictions, some of them hinting at violation of lepton flavour universality (LFU). I discusses how the anomalies in rare B decays can be explained by partial compositeness. Partial compositeness is a key ingredient of models with a composite Higgs boson and generically leads to violation of LFU. After presenting a simple model with partial compositeness that is able to explain the anomalies in rare B decays, the flavour phenomenology of a minimal UV completion of a composite Higgs model with partial compositeness is discussed: the minimal fundamental partial compositeness (MFPC) model. A virtue of the MFPC model is its capability of serving both as a solution to the naturalness problem of the SM and as an explanation of the flavour anomalies in rare B-meson decays. In view of recent new measurements, the results on which this proceedings contribution is based are updated.
Document type :
Conference papers
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-02223011
Contributor : Inspire Hep <>
Submitted on : Thursday, August 1, 2019 - 2:14:06 AM
Last modification on : Wednesday, August 14, 2019 - 7:37:36 AM

Links full text

Identifiers

Collections

Citation

Peter Stangl. Flavour anomalies and (fundamental) partial compositeness. 18th Hellenic School and Workshops on Elementary Particle Physics and Gravity, Aug 2018, Corfu, Greece. ⟨hal-02223011⟩

Share

Metrics

Record views

14