2015 CAP Congress / Congrès de l'ACP 2015

Isospin asymmetry in B→K∗μ+μ− using AdS/QCD

18 Jun 2015, 09:30

15m

CCIS L1-029 (University of Alberta)

Oral (Non-Student) / orale (non-étudiant) Particle Physics / Physique des particules (PPD) R1-3 Status and Future of Precision Frontier (PPD-DTP-DIMP) / État et avenir de la frontière de précision (PPD-DPT-DPIM)

Speaker

Dr Ruben Sandapen (Mount Allison University & Universite de Moncton)

Description

We compute the isospin asymmetry distribution in the rare dileptonic decay B→K*μ+μ-, in the dimuon mass squared (q2) region below the J/Ψ resonance, using nonperturbative inputs as predicted by the anti–de Sitter/quantum chromodynamics correspondence and by sum rules. We predict a positive asymmetry at q2=0 which flips sign in the region q2∈[1,2]  GeV2 to remain small (≤2%) and negative for larger q2. While our predictions are distinct as q2→0, they become hardly model-dependent q2≥4  GeV2. We compare our predictions to the most recent LHCb data.