Semileptonic decays [Formula Presented] and [Formula Presented] from lattice QCD

Aida X. El-Khadra, Andreas S. Kronfeld, Paul B. Mackenzie, Sinéad M. Ryan, James N. Simone

Research output: Contribution to journalArticle

Abstract

We present a lattice QCD calculation of the form factors and differential decay rates for semileptonic decays of the heavy-light mesons B and D to the final state (Formula presented) The results are obtained with three methodological improvements over previous lattice calculations: a matching procedure that reduces heavy-quark lattice artifacts, the first study of lattice-spacing dependence, and the introduction of kinematic cuts to reduce model dependence. We show that the main systematics are controllable (within the quenched approximation) and outline how the calculations could be improved to aid current experiments in the determination of (Formula presented) and (Formula presented).

Original languageEnglish (US)
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume64
Issue number1
DOIs
StatePublished - Jan 1 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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