Abstract
This paper deals with a determination of both the masses and the widths of vector mesons using QCD sum rules. The lowest-lying contribution to the dispersion integral arising from the state of two pseudoscalar mesons is written in terms of the meson form factor. The form factor is expressed in a Breit-Wigner or a related form, which involves the mass and the width of the vector-meson resonance. Using this technique, the QCD sum rule has been used to determine the resonance parameters of the \ensuremath{\rho}, ${K}^{\mathrm{*}}$, and \ensuremath{\varphi} mesons.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
