arXiv:hep-ph/9712527·v1·High Energy Physics — Phenomenology

Solution of $a_{2} / a_{1}$ sign problem in heavy meson decays: nonfactorizable soft gluons in nonleptonic heavy meson decays

B. Tseng · Hsiang-nan Li

Abstract

For the first time, a solution to the $a_{2} / a_{1}$ 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.

Comments: 5 pages. talk given at the APCTP workshop: Pacific Particle physics Phenomenology 31 Oct.-2 Nov.,1997,Seoul, Korea

Solution of a2​/a1​ sign problem in heavy meson decays: nonfactorizable soft gluons in nonleptonic heavy meson decays

Abstract

Solution of $a_{2} / a_{1}$ sign problem in heavy meson decays: nonfactorizable soft gluons in nonleptonic heavy meson decays