Spin-3/2 to spin-1/2 heavy baryons and pseudoscalar mesons transitions in QCD

被引：15
|
作者：
Aliev, T. M. [1 ,2 ]
Azizi, K. [3 ]
Savci, M. [1 ]
机构：
[1] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
[2] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan
[3] Dogus Univ, Div Phys, Fac Arts & Sci, TR-34722 Istanbul, Turkey
来源：
EUROPEAN PHYSICAL JOURNAL C | 2011年 / 71卷 / 06期
关键词：
Decay Width; Invariant Function; Pseudoscalar Meson; Strong Coupling Constant; Heavy Baryon;
D O I：
10.1140/epjc/s10052-011-1675-5
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：
The strong coupling constants of light pseudoscalar mesons with spin-3/2 and spin-1/2 heavy baryons are calculated in the framework of light cone QCD sum rules. It is shown that each class of transitions among members of the sextet spin-3/2 to sextet spin-1/2 baryons and that of the sextet spin-3/2 to spin-1/2 anti-triplet baryons is described by only one invariant function. We also estimate the widths of kinematically allowed transitions. Our results on decay widths are in good agreement with the existing experimental data, as well as predictions of other nonperturbative approaches.
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页数：10
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