RT Journal Article
T1 Electromagnetic and two-photon transition form factors of the pseudoscalar mesons: An algebraic model computation
A1 Higuera Angulo, I. M.
A1 Hernández Pinto, Roger José
A1 Raya, Khépani
A1 Bashir, Adnan
AB We compute electromagnetic and two-photon transition form factors of ground-state pseudoscalar mesons: π,K,ηc,ηb. To this end, we employ an algebraic model based upon the coupled formalism of Schwinger-Dyson and Bethe-Salpeter equations. Within this approach, the dressed quark propagator and the relevant Bethe-Salpeter amplitude encode the internal structure of the corresponding meson. Electromagnetic properties of the meson are probed via the quark-photon interaction. The algebraic model employed by us unifies the treatment of all ground-state pseudoscalar mesons. Its parameters are carefully fitted performing a global analysis of existing experimental data including the knowledge of the charge radii of the mesons studied. We then compute and predict electromagnetic and two-photon transition form factors for a wide range of probing photon momentum-squared which is of direct relevance to the experimental observations carried out thus far or planned at different hadron physics facilities such as the Thomas Jefferson National Accelerator Facility (JLab) and the forthcoming Electron-Ion Collider. We also present comparisons with other theoretical models and approaches and lattice quantum chromodynamics.
PB American Physical Society (APS)
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2024
FD 2024-08
LK https://hdl.handle.net/10272/25050
UL https://hdl.handle.net/10272/25050
LA eng
NO Higuera-Angulo, I. M., Hernández-Pinto, R. J., Raya, K., & Bashir, A. (2024). Electromagnetic and two-photon transition form factors of the pseudoscalar mesons: An algebraic model computation. In Physical Review D (Vol. 110, Issue 3). American Physical Society (APS). https://doi.org/10.1103/physrevd.110.034013
NO I. M. H-A. thanks Consejo Nacional de Humanidades,Ciencias y Tecnologías (CONAHCyT), Mexico, for thescholarship received to carry out her postgraduate studies.The work of R. J.H-P is also funded by CONAHCyTthrough Project No. 320856 (Paradigmas y Controversiasde la Ciencia 2022), Ciencia de Frontera 2021-2042 andSistema Nacional de Investigadores. A. B. acknowledgesCoordinación de la Investigación Científica, UniversidadMichoacana de San Nicolás de Hidalgo Grant No. 4.10.and Fulbright-García Robles scholarship for his stay as avisiting scientist at the Thomas Jefferson NationalAccelerator Facility, Newport News, Virginia, USA, wherepart of this work was carried out. A. B. also thanks Beatriz-Galindo support during his current stay at the University ofHuelva, Huelva, Spain. The work of K. R. is supported bythe Spanish MICINN Grant No. PID2022-140440NB-C22,and regional Andalusian Project No. P18-FR-5057. We aregrateful to G. M. Huber for private communication on thepion and kaon EFF.
DS Repositorio Institucional de la Universidad de Huelva
RD 14 jul 2026