PERTURBATIVE QCD EFFECTS IN HEAVY MESON DECAYS

被引：167

作者：

SZCZEPANIAK, A ^{[1
]}

HENLEY, EM ^{[1
]}

BRODSKY, SJ ^{[1
]}

机构：

[1] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309

来源：

PHYSICS LETTERS B | 1990年 / 243卷 / 03期

关键词：

D O I：

10.1016/0370-2693(90)90853-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The amplitude for the exclusive nonleptonic decay of a heavy meson into two light pseudoscalar mesons is analyzed using the factorization formalism of perturbative QCD for exclusive reactions at large momentum transfer. We show that the leading contribution to such amplitudes is proportional to αs(Q2) where Q2 scales with the heavy meson mass squared. Branching ratios for a few B0 decay modes are calculated. © 1990.

引用

页码：287 / 292

页数：6

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