Analysis of the vertices BsBK* and DsDK* with QCD Sum Rules. (July 2015)

• Record Type: Journal Article
• Authors: Cerqueira, A; Rodrigues, B Osório; Bracco, M E
• Is Part Of: Journal of physics. Number 630(2015)
• Publication Date: 2015-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/630/1/012034
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: In this work, we calculated the form factors and coupling constant of the vertex Ds DK* using the QCD Sum Rules. The calculation of the form factors were performed for the cases D, Ds and K* off shell. Using the similarities between B and D mesons, we also calculated the form factors and coupling constant of the vertex Bs BK* . The coupling constants of the vertices Bs BK* and Ds DK* were compared with each other through the Heavy Hadron Chiral Perturbation Theory(HHChPT). We found a difference of 19% between Bs BK* and Ds DK* coupling constants using the HHChPT relation.