The semi-leptonic form factors of [Formula omitted] and [Formula omitted] in QCD sum rules

In this work, the full leading order results of the form factors for [Formula omitted] and [Formula omitted] are obtained in QCD sum rules. Contributions from up to dimension-5 have been considered. For completeness, we also study the two-point correlation function to obtain the pole residues of [Fo...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2020-12, Vol.80 (12)
Main Authors: Zhao, Zhen-Xing, Li, Run-Hui, Shen, Yue-Long, Shi, Yu-Ji, Yang, Yan-Sheng
Format: Article
Language:English
Subjects:
Basketball players
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, the full leading order results of the form factors for [Formula omitted] and [Formula omitted] are obtained in QCD sum rules. Contributions from up to dimension-5 have been considered. For completeness, we also study the two-point correlation function to obtain the pole residues of [Formula omitted] and [Formula omitted], and higher accuracy is achieved. For the three-point correlation function, since stable Borel regions cannot be found, about [Formula omitted] uncertainties are introduced for the form factors of [Formula omitted] and [Formula omitted]. Our results for the form factors are consistent with those of the lattice QCD within errors.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-020-08767-1