TY  - JOUR
AU  - Alvarado, F.
AU  - An, D.
AU  - Alvarez-Ruso, L.
AU  - Leupold, S.
PY  - 2023
DA  - 2023//
TI  - Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 114021
EP  - 23pp
VL  - 108
IS  - 11
PB  - Amer Physical Soc
AB  - The nucleon isovector electromagnetic form factors are calculated up to next-to-next-to-leading order by combining relativistic chiral perturbation theory (ChPT) of pion, nucleon, and Delta o1232 thorn with dispersion theory. We specifically address the light-quark mass dependence of the form factors, achieving a good description of recent lattice QCD results over a range of Q2 less than or similar to 0.6 GeV2 and M pi less than or similar to 350 MeV. For the Dirac form factor, the combination of ChPT and dispersion theory outperforms the pure dispersive and pure ChPT descriptions. For the Pauli form factor, the combined calculation leads to results comparable to the purely dispersive ones. The anomalous magnetic moment and the Dirac and Pauli radii are extracted.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2310.07796
UR  - https://doi.org/10.1103/PhysRevD.108.114021
DO  - 10.1103/PhysRevD.108.114021
LA  - English
N1  - WOS:001138524400003
ID  - Alvarado_etal2023
ER  -