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Covariant Spectator Theory and Hadron Structure

Conference · · Few-Body Systems
We present the first results of a study on meson spectroscopy using a covariant formalism based on the Covariant Spectator Theory (CST). Our approach is derived directly in Minkowski space and it approximates the Bethe-Salpeter equation by taking effectively into account the contributions from both ladder and crossed ladder diagrams in the qq ? interaction kernel. A general Lorentz structure of the kernel is tested and chiral constraints on the kernel are discussed. Results for the pion form factor are also presented.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
DOE Contract Number:
AC05-06OR23177
OSTI ID:
1970233
Report Number(s):
JLAB-THY-16-2420; DOE/OR/23177-4045
Conference Information:
Journal Name: Few-Body Systems Journal Issue: 6 Journal Volume: 57
Country of Publication:
United States
Language:
English

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