TY  - JOUR
AU  - Carlomagno, J. P.
AU  - Gomez Dumm, D.
AU  - Izzo Villafañe, M. F.
AU  - Noguera, S.
AU  - Scoccola, N. N.
PY  - 2022
DA  - 2022//
TI  - Charged pseudoscalar and vector meson masses in strong magnetic fields in an extended NJL model
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 094035
EP  - 17pp
VL  - 106
IS  - 9
PB  - Amer Physical Soc
AB  - The mass spectrum of pi(+) and rho(+) mesons in the presence of a static uniform magnetic field (B) over right arrow is studied within a two-flavor Nambu-Jona-Lasinio-like model. We improve previous calculations, taking into account the effect of Schwinger phases carried by quark propagators and using an expansion of meson fields in terms of the solutions of the corresponding equations of motion for nonzero B. It is shown that the meson polarization functions are diagonal in this basis. Our numerical results for the rho(+) meson spectrum are found to disfavor the existence of a meson condensate induced by the magnetic field. In the case of the pi(+) meson, pi-rho mixing effects are analyzed for the meson lowest-energy state. The predictions of the model are compared with available lattice QCD results.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2209.10679
UR  - https://doi.org/10.1103/PhysRevD.106.094035
DO  - 10.1103/PhysRevD.106.094035
LA  - English
N1  - WOS:000917769000013
ID  - Carlomagno_etal2022
ER  -