May 27 – 31, 2024
Chulalongkorn University
Asia/Bangkok timezone

LHCb measurements of rare electroweak decays of b-hadrons

May 28, 2024, 10:20 AM
25m
Chulalongkorn University

Chulalongkorn University

Mahamakut Building, Faculty of Science, Chulalongkorn University
Plenary session Rare decays of hadrons and leptons Rare decays of hadrons and leptons

Speakers

Lakshan Madhan (University of Cambridge (GB)) Lakshan Ram Madhan Mohan (University of Bristol)

Description

In the Standard Model, decays mediated by $b\rightarrow sll$ are very suppressed making them sensitive to possible non-SM contributions.
The latest LHCb measurement of the branching fraction ratio of this process between electrons and muons was shown to be consistent with the Standard Model.
However, measurements of branching fraction and angular observables of $b\rightarrow s\mu \mu$ have shown an interesting pattern of tensions with the predictions.
This could be due to underestimated hadronic effects or non-SM contributions.
The most recent LHCb measurements as well as future prospects to understand this will be discussed in this talk.

Primary authors

Keri Vos (Nikhef National institute for subatomic physics (NL)) Lakshan Madhan (University of Cambridge (GB)) Lakshan Ram Madhan Mohan (University of Bristol)

Presentation materials