TY - JOUR
T1 - Three-scale factorization theorem and effective field theory
T2 - Analysis of nonleptonic heavy meson decays
AU - Chang, Chia Hung V.
AU - Li, Hsiang nan
PY - 1997
Y1 - 1997
N2 - We develop a perturbative QCD factorization theorem which is compatible with effective field theory. The factorization involves three scales: an infrared cutoff of order [Formula presented] a hard scale of the order of the [Formula presented] meson mass, and an ultraviolet cutoff of the order of the [Formula presented] boson mass. Our approach is renormalization-group invariant and moderates the scale-dependent problem in effective field theory. Employing this formalism with nonfactorizable contributions included, we clarify the controversy over the BSW parameters [Formula presented] for charm and bottom decays.
AB - We develop a perturbative QCD factorization theorem which is compatible with effective field theory. The factorization involves three scales: an infrared cutoff of order [Formula presented] a hard scale of the order of the [Formula presented] meson mass, and an ultraviolet cutoff of the order of the [Formula presented] boson mass. Our approach is renormalization-group invariant and moderates the scale-dependent problem in effective field theory. Employing this formalism with nonfactorizable contributions included, we clarify the controversy over the BSW parameters [Formula presented] for charm and bottom decays.
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U2 - 10.1103/PhysRevD.55.5577
DO - 10.1103/PhysRevD.55.5577
M3 - Article
AN - SCOPUS:0000205226
SN - 1550-7998
VL - 55
SP - 5577
EP - 5580
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
ER -