Solution of a₂/a₁ sign problem in heavy meson decays: nonfactorizable soft gluons in nonleptonic heavy meson decays
Tseng, B. · Li, Hsiang-nan
Original · EN
For the first time, a solution to the a₂/a₁ sign problem in heavy meson decay based on PQCD factorization theorems. The point is to include QCD evolution effort characteristic scales involved in decay processes.
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