Nonfactorizable corrections to B -> J/psi K (CROSBI ID 101079)
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Podaci o odgovornosti
Melić, Blaženka
engleski
Nonfactorizable corrections to B -> J/psi K
We apply the method of QCD light-cone sum rules to calculate nonfactorizable contributions to the B-->J/psiK decay and estimate soft nonfactorizable corrections to the a(2) parameter. The corrections appear to be positive, favoring the positive sign of a(2), in agreement with recent theoretical considerations and experimental data. Our result also confirms expectations that in the color-suppressed decay nonfactorizable corrections are sizable.
weak nonleptonic decays ; heavy meson decays ; qcd sum-rules ; charmed mesons ; leading logarithms ; wave-functions ; form-factors ; factorization ; twist ; pion
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Podaci o izdanju
68 (3)
2003.
034004
14
objavljeno
0556-2821
1089-4918
10.1103/PhysRevD.68.034004