Semileptonic decays of charmed mesons to light scalar mesons

Within the framework of covariant confined quark model, we compute the transition form factors of D and Ds mesons decaying to light scalar mesons f0 ( 980 ) and a0 ( 980 ). The transition form factors are then utilized to compute the semileptonic branching fractions. We study the channels, namely, D...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2020-07, Vol.102 (1), p.1, Article 016013
Main Authors: Soni, N. R., Gadaria, A. N., Patel, J. J., Pandya, J. N.
Format: Article
Language:English
Subjects:
Charm (particle physics)
Form factors
Mesons
Quark models
Quarks
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Within the framework of covariant confined quark model, we compute the transition form factors of D and Ds mesons decaying to light scalar mesons f0 ( 980 ) and a0 ( 980 ). The transition form factors are then utilized to compute the semileptonic branching fractions. We study the channels, namely, D(s)+ → f0 ( 980 ) ℓ+ νℓ and D → a0 ( 980 ) ℓ+ νℓ for ℓ = e and μ . For computation of semileptonic branching fractions, we consider the a0 ( 980 ) meson to be the conventional quark-antiquark structure and the f0 ( 980 ) meson as the admixture of ss and light quark-antiquark pairs. Our findings are found to support the recent BESIII data.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.102.016013