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Seminar
The weak among the strong-muonic decays of excited mesons at LHCb and a glimpse into final-state radiation
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Australia/Sydney
Description
Weak decays of excited vector mesons, such as D*0 or B(s)*0 into two leptons, provide a way to search for deviations from Standard Model (SM) expectations. They are not helicity suppressed (unlike the analogous decays of pseudoscalar mesons) offering complementary constraints on non-SM contributions. Yet, due to dominant strong or electromagnetic interactions, their branching fractions are highly suppressed, making measurements challenging.
In my talk, I will cover my work on searches for vector mesons decaying into dimuon states at LHCb. I utilised the production of vector mesons in hadronic exclusive B(c) decays to reduce background using the displaced B(c)-vertex signature. This led me to investigate also nonresonant Bc -> pimumu decays, a potential background source, interesting on their own, as they occur purely through annihilation diagrams, without theoretical predictions to date. As a bonus, I will briefly discuss my current project on final-state photon radiation, which I am advancing in Australia.
This work is supported by the Monash-Warwick Alliance in Particle Physics.
