Semileptonic decays B→πlv and D→πlv from lattice QCD

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

doi:10.1103/PhysRevD.64.014502

Semileptonic decays B→πlv and D→πlv from lattice QCD

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

Physics

Research output: Contribution to journal › Article › peer-review

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 trlv. 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 | V_ub\ and \Vca\-

Original language	English (US)
Article number	014502
Pages (from-to)	18
Number of pages	1
Journal	Physical Review D
Volume	64
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.64.014502
State	Published - 2001

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.64.014502

Cite this

@article{4c917345436b4ddb95b1b8cee21678a7,

title = "Semileptonic decays B→πlv and D→πlv from lattice QCD",

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 trlv. 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 | Vub\ and \Vca\-",

author = "El-Khadra, {Aida X.} and Kronfeld, {Andreas S.} and Mackenzie, {Paul B.} and Ryan, {Sin{\'e}ad M.} and Simone, {James N.}",

year = "2001",

doi = "10.1103/PhysRevD.64.014502",

language = "English (US)",

volume = "64",

pages = "18",

journal = "Physical review D: Particles and fields",

issn = "1550-7998",

publisher = "American Institute of Physics",

number = "1",

}

TY - JOUR

T1 - Semileptonic decays B→πlv and D→πlv from lattice QCD

AU - El-Khadra, Aida X.

AU - Kronfeld, Andreas S.

AU - Mackenzie, Paul B.

AU - Ryan, Sinéad M.

AU - Simone, James N.

PY - 2001

Y1 - 2001

N2 - 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 trlv. 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 | Vub\ and \Vca\-

AB - 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 trlv. 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 | Vub\ and \Vca\-

UR - http://www.scopus.com/inward/record.url?scp=0034892964&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034892964&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.64.014502

DO - 10.1103/PhysRevD.64.014502

M3 - Article

AN - SCOPUS:0034892964

VL - 64

SP - 18

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 1

M1 - 014502

ER -

Semileptonic decays B→πlv and D→πlv from lattice QCD

Abstract

ASJC Scopus subject areas

Access to Document

Other links

Fingerprint

Cite this