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Loop Corrections to Heavy-to-Light Form Factors and Evanescent Operators in SCET.


DE2004833022

Publication Date 2004
Personal Author Becher, T.; Hill, R. J.
Page Count 34
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.
Keywords
  • Form factors
  • Radiative corrections
  • Matrix elements
  • Mesons
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200513
Loop Corrections to Heavy-to-Light Form Factors and Evanescent Operators in SCET.
Loop Corrections to Heavy-to-Light Form Factors and Evanescent Operators in SCET.
DE2004833022

  • Form factors
  • Radiative corrections
  • Matrix elements
  • Mesons
  • Technical Information Center Oak Ridge Tennessee
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