Color-straight four-quark operators and lifetimes of b-flavored hadrons

被引：0
|
作者：
Arunagiri, S [1 ]
机构：
[1] Univ Madras, Dept Nucl Phys, Madras 600025, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2000年 / 15卷 / 19期
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中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Using the relation between the harmonic oscillator wave function and the light quark scattering form factor, the expectation values of color-straight four-quark operators are evaluated and found to be directly proportional to the cubic power of the oscillator strength. It is predicted that the ratio tau(Lambda(b))/tau(B) approximate to 0.79(0.84) due to the factorizable (nonfactorizable) piece, against the experimental 0.79 +/- 0.06. Notwithstanding the numerical prediction, the present study shows that the four-quark operators play a role as far the lifetimes of b-flavored hadrons are concerned.
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页码：3053 / 3063
页数：11
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