QCD sum rule for Λ(1405)
نویسندگان
چکیده
منابع مشابه
QCD Sum Rule Analysis
We present a QCD sum rule calculation of the spin-symmetry violating universal function χ2(v · v′), which appears at order 1/mQ in the heavy quark expansion of meson form factors. This function vanishes in the standard approximation, where radiative effects are neglected. For the first time, the complete set of diagrams arising at order αs is evaluated. In particular, we find χ2(1) = −(3.8± 0.4...
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ژورنال
عنوان ژورنال: Zeitschrift für Physik A Hadrons and Nuclei
سال: 1997
ISSN: 0939-7922,1431-5831
DOI: 10.1007/s002180050262