RT Journal Article
T1 Electric, magnetic, and quadrupole form factors and charge radii of vector mesons: From light to heavy sectors in a contact interaction
A1 Hernández Pinto, Roger José
A1 Gutiérrez Guerrero, Laura Xiomara
A1 Bedolla Hernández, Marco Antonio
A1 Bashir, Adnan
AB We present a detailed survey of electric, magnetic, and quadrupole form factors of light and heavy spin-1 vector mesons. It complements our analogous analysis of the electromagnetic form factors of pseudoscalar and scalar mesons reported earlier. Our formalism is based upon the Schwinger-Dyson equations treatment of a vector × vector contact interaction and the Bethe-Salpeter equation description of relativistic two-body bound states. We compute the form factors, associated moments, and charge radii, comparing these quantities to earlier theoretical studies and experimental results if and when possible. We also investigate the quark-mass dependence of the charge radii and find the anticipated hierarchy such that it decreases with increasing dressed quark masses. In addition, our analysis shows that the magnetic moment is independent of the mass of the light and heavy mesons. Our results agree with most measurements reported earlier, finding a negative quadrupole moment, implying the charge distribution is oblate.
PB American Physical Society (APS)
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2024
FD 2024-12
LK https://hdl.handle.net/10272/24823
UL https://hdl.handle.net/10272/24823
LA eng
NO Hernández-Pinto, R. J., Gutiérrez-Guerrero, L. X., Bedolla, M. A., & Bashir, A. (2024). Electric, magnetic, and quadrupole form factors and charge radii of vector mesons: From light to heavy sectors in a contact interaction. In Physical Review D (Vol. 110, Issue 11). American Physical Society (APS). https://doi.org/10.1103/physrevd.110.114015
NO L. X. Gutiérrez-Guerrero gratefully acknowledges the National Council of Humanities, Sciences, and Technologies (CONAHCyT) for the support provided to her through the Cátedras CONAHCyT program and Project CBF2023-2024-268, Hadronic Physics at JLab: Deciphering the Internal Structure of Mesons and Baryons, from the 2023–2024 frontier science call. The work of R. J. Hernández-Pinto is supported by CONAHCyT (Mexico) Project No. 320856 (Paradigmas y Controversias de la Ciencia 2022), Ciencia de Frontera 2021–2042, and Sistema Nacional de Investigadores. A. B. wishes to acknowledge the Coordinación de la Investigación Científica of the Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico, Grant No. 4.10, the Consejo Nacional de Humanidades, Ciencias y Tecnologías, Mexico, Project CBF2023-2024-3544, as well as the Beatriz-Galindo support during his current scientific stay at the University of Huelva, Huelva, Spain. M. A. Bedolla acknowledges support from the Munich Institute for Astro-, Particle and BioPhysics (MIAPbP), funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2094–390783311.
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026