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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Semi-leptonic form factors for Bs -> K l nu and Bs -> Ds l nu

Jul 27, 2018, 5:30 PM
103 (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Weak Decays and Matrix Elements Weak Decays and Matrix Elements


Oliver Witzel Witzel (University of Colorado Boulder)


We report on our determination of form factors for Bs semi-leptonic decays and extract ratios to investigate lepton flavor universality violations. Our calculation is based on RBC-UKQCD's gauge field ensembles featuring 2+1 flavors of domain-wall fermions and Iwasaki gauge action at three lattice spacing of 1/a = 1.78, 2.38, and 2.77 GeV. In the valence sector we use domain-wall light, strange, and charm quarks and simulate physical bottom quarks using the relativistic heavy quark action. We will detail our new analysis procedure and give an outlook on future calculations.

Primary author

Oliver Witzel Witzel (University of Colorado Boulder)


Dr Andreas Juettner (University of Southampton) Prof. Jonathan Flynn (University of Southampton) Dr Justus Tobias Tsang (University of Edinburgh) amarjit soni (BNL)

Presentation Materials