TY - JOUR AU - Carlomagno, J. P. AU - Gomez Dumm, D. AU - Izzo VillafaƱe, 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 -