TY  - JOUR
AU  - Hiller Blin, A. N.
AU  - Sun, Z. F.
AU  - Vicente Vacas, M. J.
PY  - 2018
DA  - 2018//
TI  - Electromagnetic form factors of spin-1/2 doubly charmed baryons
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 054025
EP  - 13pp
VL  - 98
IS  - 5
PB  - Amer Physical Soc
AB  - We study the electromagnetic form factors of the doubly charmed baryons, using covariant chiral perturbation theory within the extended on-mass-shell scheme. Vector-meson contributions are also taken into account. We present results for the baryon magnetic moments, charge, and magnetic radii. While some of the chiral Lagrangian parameters could be set to values determined in previous works, the available lattice results for Xi(+)(CC) and Omega(+)(CC) only allow for robust constraints on the low-energy constant combination, c(89) (= -1/3 c(8) + 4c(9)). The couplings of the doubly charmed baryons to the vector mesons have been estimated assuming the Okubo-Zweig-Iizuka rule. We also give the expressions for the form factors of the double-beauty baryons considering the masses predicted in the framework of quark models. A comparison of our results with those obtained in heavy baryon chiral perturbation theory at the same chiral order is made.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1807.01059
UR  - https://doi.org/10.1103/PhysRevD.98.054025
DO  - 10.1103/PhysRevD.98.054025
LA  - English
N1  - WOS:000445503600008
ID  - HillerBlin_etal2018
ER  -