B-MESON EXCLUSIVE DECAYS INTO BARYONS

被引：434

作者：

CHERNYAK, VL

ZHITNITSKY, IR

机构：

[1] COLL FRANCE,PHYS CORPUSCULAIRE LAB,F-75231 PARIS 05,FRANCE

[2] IRKUTSK STATE UNIV,IRKUTSK 664003,USSR

来源：

NUCLEAR PHYSICS B | 1990年 / 345卷 / 01期

关键词：

D O I：

10.1016/0550-3213(90)90612-H

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A detailed description is presented of the method used and the results obtained for measuring various decay widths of the B-mesons into baryon-antibaryon pairs: (i) into two light baryons: B → pp, Δp, ..., (ii) into one light and one charmed baryon: B → pΣc, pΛc,..., (iii) into two charmed baryons: B → Σc, Ξc, ΛcΞc,..., (iv) the decays induced by the b → s and b → d penguin contributions: B → pΣ, pΛ, ΔΣ,.... As a by-product, we present the result for the B-meson decay constant, fB, obtained from the new QCD sum rule and the values of many other analogous constants for transitions of various currents into baryons. © 1990.

引用

页码：137 / 172

页数：36

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