QCD PREDICTIONS FOR LEPTON SPECTRA IN INCLUSIVE HEAVY FLAVOR DECAYS

被引：442

作者：

BIGI, II

SHIFMAN, M

URALTSEV, NG

VAINSHTEIN, A

机构：

[1] ST PETERSBURG NUCL PHYS INST,ST PETERSBURG 188350,RUSSIA

[2] BUDKER INST NUCL PHYS,NOVOSIBIRSK 630090,RUSSIA

[3] UNIV MINNESOTA,INST THEORET PHYS,MINNEAPOLIS,MN 55455

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.71.496

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive the lepton spectrum in semileptonic b decays from a nonperturbative treatment of QCD; it is based on an expansion in 1/m(Q) with m(Q) being the heavy flavor quark mass. The leading corrections arising on the 1/m(Q) level are completely expressed in terms of the difference in the mass of the heavy hadron and the quark. Nontrivial effects appear in 1/m(Q)2 terms affecting mainly the end-point region; they are different for meson and baryon decays as well as for bottom and charm decays.

引用

页码：496 / 499

页数：4

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