TY  - JOUR
AU  - Carlomagno, J. P.
AU  - Gomez Dumm, D.
AU  - Noguera, S.
AU  - Scoccola, N. N.
PY  - 2022
DA  - 2022//
TI  - Neutral pseudoscalar and vector meson masses under strong magnetic fields in an extended NJL model: Mixing effects
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 074002
EP  - 20pp
VL  - 106
IS  - 7
PB  - Amer Physical Soc
AB  - Mixing effects on the mass spectrum of light neutral pseudoscalar and vector mesons in the presence of an external uniform magnetic field (B) over right arrow are studied in the framework of a two-flavor Nambu-Jona-Lasinio (NJL)-like model. The model includes isoscalar and isovector couplings both in the scalar-pseudoscalar and vector sectors, and also incorporates flavor mixing through a ' t Hooft-like term. Numerical results for the B dependence of meson masses are compared with present lattice QCD results. In particular, it is shown that the mixing between pseudoscalar and vector meson states leads to a significant reduction of the mass of the lightest state. The role of chiral symmetry and the effect of the alignment of quark magnetic moments in the presence of the magnetic field are discussed.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2205.15928
UR  - https://doi.org/10.1103/PhysRevD.106.074002
DO  - 10.1103/PhysRevD.106.074002
LA  - English
N1  - WOS:000898622400001
ID  - Carlomagno_etal2022
ER  -