Electromagnetic form factors and charge radii of pseudoscalar and scalar mesons: A comprehensive contact interaction analysis

Hernández-Pinto, Roger J.; Gutiérrez-Guerrero, L. X.; Bashir, Adnan; Bedolla, Marco A.; Higuera-Angulo, I. M.

doi:10.1103/physrevd.107.054002

Cited by 10 publications

(1 citation statement)

References 63 publications

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“…From the experimental side, the form factors have been measured with high precision for a space-and time-like photons [1][2][3][4][5][6][7][8][9][10]. From the phenomenological and theoretical side, there exist plenty of efforts to describe the form factor on the space-like regime (i.e [11][12][13][14][15][16][17][18][19][20][21][22] which are in agreement with the experimental determinations. Both the Electron-Ion Collider and the Jefferson Laboratory (current 12 GeV and potential 22 GeV upgrade) plan to chart out a large momentum range of spacelike pion and kaon form factors.…”

Section: Introductionmentioning

confidence: 64%

Electromagnetic time-like form factors

Miramontes,

Bashir

2023

Supl. Rev. Mex. Fis.

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We present the calculation of charged pion and kaon electromagnetic form factors in the time-like regime using Schwinger-Dyson equations and the Poincare covariant Bethe-Salpeter equations within an SU(2) isospin symmetric limit. To accurately represent the behavior of a time-like photon, we have incorporated non-valence contributions into the system of equations, enabling the decays ρ → ππ and φ → KK. The inclusion of these decay mechanisms is essential for capturing the expected behavior of the electromagnetic pion and kaon form factors. Our results for the form factors reasonably reproduce the experimental data for a time-like photon.

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Section: Introductionmentioning

confidence: 64%

Electromagnetic time-like form factors

Miramontes,

Bashir

2023

Supl. Rev. Mex. Fis.

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The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons

2024

J. High Energ. Phys.

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We systematically investigate the electromagnetic form factors of heavy-light pseudo-scalar and vector mesons within the Dyson-Schwinger/Bethe-Salpeter equations framework for the first time. It is found that the charge radius of vector meson is larger than that of its pseudo-scalar counterpart. In heavy-light systems, the flavor symmetry breaking will lead to a splitting of the form factor of different quark, and the distribution range of lighter and heavier quark gradually expands and contracts, respectively. The competition between them together generates the electromagnetic form factors of meson. Our results can be compared with other theoretical calculations and future experimental data.

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