30 July 2026 to 5 August 2026
Natal Convention Center
America/Sao_Paulo timezone

Vector-like quarks constrained by rare B dacays

30 Jul 2026, 15:15
15m
Room #8 (Praiamar Natal Hotel & Convention)

Room #8

Praiamar Natal Hotel & Convention

R. Francisco Gurgel, 33 - Ponta Negra, Natal - RN, 59090-050
Talk Beyond the Standard Model Beyond the Standard Model

Speaker

Dr Mohammad Ahmady (Mount Allison University)

Description

Direct searches for vector-like quarks (VLQs) has set their lower mass limit to be above one TeV. I show that for large VLQ mass, the so-far overlooked one-loop Higgs exchange can have significant effects in flavour changing neutral current (FCNC) processes like rare B decays. I present the constrains on the non-unitarity parameter and VLQ mass using the latest data on B->Xs gamma, Bs->mu+ mu- and B->Xs mu+ mu- when a single down-type VLQ is added to the Standard Model. I also comment on B+->K+ nu bar nu anomaly in light of this constrained new physics scenario.

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Author

Dr Mohammad Ahmady (Mount Allison University)

Co-authors

Dr Maryam Bibi (Mount Allison University) Prof. Ruben Sandapen (Acadia University)

Presentation materials