Constraint equations for heavy-to-light currents in soft-collinear effective theory
نویسندگان
چکیده
منابع مشابه
An effective field theory for collinear and soft gluons: heavy to light decays
We construct the Lagrangian for an effective theory of highly energetic quarks with energy Q, interacting with collinear and soft gluons. This theory has two low energy scales, the transverse momentum of the collinear particles, p⊥, and the scale p 2 ⊥/Q. The heavy to light currents are matched onto operators in the effective theory at one-loop and the renormalization group equations for the co...
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Heavy-to-light transition form factors at large recoil energy of the light meson have been conjectured to obey a factorization formula, where the set of form factors is reduced to a smaller number of universal form factors up to hard-scattering corrections. In this paper we extend our previous investigation of heavy-to-light currents in soft-collinear effective theory to final states with invar...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2005
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.72.114002