Flavour physics as a window to new physics searches

Abstract

Flavour physics is one of the essential elements of the Standard Model (SM). Experimental studies of weak decays of B and D mesons at B factories have, together with the discovery of the Higgs boson at LHC, provided the final confirmation of the validity of the SM. The present generation of precision flavour physics experiments is looking for departures from the SM. We discuss studies of anomalies in b hadron decays, and studies of rare decays, which are a very promising method for searching for new physics. This article is part of the theme issue ‘The particle-gravity frontier’.

The cosmological constant and scale hierarchies with emergent gauge symmetries

“…Today a vigorous programme of experiments and theory is probing the high energy and precision frontiers together with cosmology looking for cracks in our description of Nature provided by the Standard Model and General Relativity. Ideas for new physics are discussed in the parallel theoretical contributions to this volume [15][16][17] with experiments discussed in [9,[18][19][20][21][22].…”

The particle-gravity frontier

“…Krizan discusses flavour anomalies in b-quark decays [ 13 ]. Curious few standard deviations anomalies between experiment and theory have been observed at BELLE and LHCb which await understanding.…”