4-7 August 2020
Asia/Tokyo timezone

Semileptonic $B\to\pi\ell\nu$ decays

5 Aug 2020, 17:40


Weak Decays and Matrix Elements Weak Decays and Matrix Elements


Ryan Hill (*) (University of Southampton)


The desire for additional determinations of the CKM matrix element $V_{ub}$ and a long-standing 2-3$\sigma$ discrepancy between results from inclusive $B\to X_u$ and exclusive $B\to\pi$ processes motivate the study of $B\to\pi$ semileptonic form factors on the lattice. The status of our preliminary $B\to\pi\ell\nu$ results will be discussed by highlighting updates to our analysis. The analysis is carried out on a subset of the RBC/UKQCD 2+1f Iwasaki gauge action ensembles, with $b$ quarks simulated using the Columbia formulation of the relativistic heavy quark action, and the light valence-quarks simulated with domain wall fermions. The final results of this project will provide updates to the 2015 RBC/UKQCD $B\to\pi\ell\nu$ result.

Primary author

Ryan Hill (*) (University of Southampton)


Presentation Materials