<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">→</mml:mo><mml:msub><mml:mi>B</mml:mi><mml:mrow><mml:mi>s</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>d</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:msub></mml:math> form factors from lattice QCD

Abstract

The authors compute, for the first time, the form factors of the semileptonic ${B}_{c}\ensuremath{\rightarrow}{B}_{s(d)}$ decays in the continuum limit of lattice QCD with all errors under control. They use their results to predict differential decay rates and branching fractions to be compared with future experimental results or to extract the CKM matrix elements $|{V}_{c\phantom{\rule{0}{0ex}}s}|$ and $|{V}_{c\phantom{\rule{0}{0ex}}d}|$ from them.

Topics & Concepts