TY - JOUR
T1 - Proof of factorization for B → Dπ
AU - Bauer, Christian W.
AU - Pirjol, Dan
AU - Stewart, Iain W.
PY - 2001/11/12
Y1 - 2001/11/12
N2 - We prove that the matrix elements of four fermion operators mediating the decays B¯0 → D+π− and B− → D0π− factor into the product of a form factor describing the B → Dπ transition and a convolution of a short distance coefficient with the nonperturbative pion light-cone wave function. This is shown to all orders in αs, with corrections suppressed by factors of 1/mb, 1/mc, and 1/Eπ. It is not necessary to assume that the pion state is dominated by the qq¯ Fock state.
AB - We prove that the matrix elements of four fermion operators mediating the decays B¯0 → D+π− and B− → D0π− factor into the product of a form factor describing the B → Dπ transition and a convolution of a short distance coefficient with the nonperturbative pion light-cone wave function. This is shown to all orders in αs, with corrections suppressed by factors of 1/mb, 1/mc, and 1/Eπ. It is not necessary to assume that the pion state is dominated by the qq¯ Fock state.
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U2 - 10.1103/PhysRevLett.87.201806
DO - 10.1103/PhysRevLett.87.201806
M3 - Article
AN - SCOPUS:85026890473
SN - 0031-9007
VL - 87
SP - 201806-1-201806-4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 20
ER -