✦ LIBER ✦

Heavy Λ semileptonic decay: a QCD sum rule approach

✍ Scribed by H.G. Dosch; E. Ferreira; M. Nielsen; R. Rosenfeld

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 356 KB
Volume: 74
Category: Article
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(99)00166-8

No coin nor oath required. For personal study only.

✦ Synopsis

In this work we calculate the form factors of the A, and hb semileptonic decay using the QCD sum rules approach. We found that the form factors sum rules are more stable than the respective mass sum rules, and we get a decay rate for A, compatible with experiment.

📜 SIMILAR VOLUMES

QCD sum rule analysis for the Λb → Λc se

QCD sum rule analysis for the Λb → Λc semileptonic decay

✍ Yuan-ben Dai; Chao-shang Huang; Ming-qiu Huang; Chun Liu 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 539 KB

Sum rule calculation of semi-leptonic de

Sum rule calculation of semi-leptonic decays of heavy A hyperons in full QCD

✍ H.G. Dosch 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 212 KB

The semi-leptonic decay amplitudes of heavy A hyperons are calculated with sum rules in full QCD. The decay rate of the A¢ ~ AtP agrees in the errors with the experimental value. For the decay Ab --A~lP a substantial deviation from HQET is found in our approach.

as a tetraquark state with QCD sum rules

as a tetraquark state with QCD sum rules in heavy quark limit

✍ Zhi-Gang Wang; Shao-Long Wan 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 146 KB

In this article, we take the point of view that the charmed scalar meson D s0 (2317) be a tetraquark state and devote to calculate its mass within the framework of the QCD sum rules approach in the heavy quark limit. The numerical values for the mass of the D s0 (2317) are consistent with the experi