Loop corrections to heavy-to-light form factors and evanescent operators in SCET

Thomas Becher; Richard J. Hill

doi:10.1088/1126-6708/2004/10/055

Loop corrections to heavy-to-light form factors and evanescent operators in SCET

Thomas Becher, Richard J. Hill

Physics And Astronomy

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

19 Scopus citations

Abstract

One-loop matching corrections are calculated for Soft-Collinear Effective Theory (SCET) operators relevant to the analysis of heavy-to-light meson form factors at large recoil. The numerical impact of radiative corrections on form factor predictions is assessed. Evanescent operators in the effective theory are studied and it is shown that even in problems of the Sudakov type, these operators can be renormalized to have vanishing matrix elements.

Original language	English
Pages (from-to)	2067-2095
Number of pages	29
Journal	Journal of High Energy Physics
Volume	8
Issue number	10
DOIs	https://doi.org/10.1088/1126-6708/2004/10/055
State	Published - Oct 1 2004

Keywords

B-Physics
NLO Computations
QCD
Weak Decays

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1088/1126-6708/2004/10/055

Cite this

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abstract = "One-loop matching corrections are calculated for Soft-Collinear Effective Theory (SCET) operators relevant to the analysis of heavy-to-light meson form factors at large recoil. The numerical impact of radiative corrections on form factor predictions is assessed. Evanescent operators in the effective theory are studied and it is shown that even in problems of the Sudakov type, these operators can be renormalized to have vanishing matrix elements.",

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AU - Hill, Richard J.

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N2 - One-loop matching corrections are calculated for Soft-Collinear Effective Theory (SCET) operators relevant to the analysis of heavy-to-light meson form factors at large recoil. The numerical impact of radiative corrections on form factor predictions is assessed. Evanescent operators in the effective theory are studied and it is shown that even in problems of the Sudakov type, these operators can be renormalized to have vanishing matrix elements.

AB - One-loop matching corrections are calculated for Soft-Collinear Effective Theory (SCET) operators relevant to the analysis of heavy-to-light meson form factors at large recoil. The numerical impact of radiative corrections on form factor predictions is assessed. Evanescent operators in the effective theory are studied and it is shown that even in problems of the Sudakov type, these operators can be renormalized to have vanishing matrix elements.

KW - B-Physics

KW - NLO Computations

KW - QCD

KW - Weak Decays

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

ER -

Loop corrections to heavy-to-light form factors and evanescent operators in SCET

Abstract

Keywords

ASJC Scopus subject areas

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