67 citations · 886 across the 59 of their papers we have counts for
5 papers · 2 filters
Effects of the restoration of U(1) symmetry on pseudoscalar meson observables
M. C. Ruivo, Pedro Costa, C. A. de Sousa +1
We investigate the restoration of chiral SUSU and axial U(1) symmetries, at finite temperature and density, in the framework of the three flavor Nambu-Jona-Las…
Scalar sigma meson at finite temperature in nonlocal quark model
D. Blaschke, Yu. L. Kalinovsky, A. E. Radzhabov +1
Properties and temperature behavior of pi and sigma bound states are studied in the framework of the nonlocal model with a separable interaction kernel based on the quark Dyson-Sch…
New contributions to heavy-quarkonium production
J. P. Lansberg, J. R. Cudell, Yu. L. Kalinovsky
We reconsider quarkonium production in a field-theoretical setting and we show that the lowest-order mechanism for heavy-quarkonium production receives in general contributions fro…
Analysis of U(1) symmetry-breaking and restoration effects on the scalar-pseudoscalar spectrum
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We explore patterns of effective restoration of the chiral U(1) symmetry using an extended three-flavor Nambu-Jona-Lasinio model that incorporates explicitly the axial anomaly…
Restoration of U(1) symmetry and meson spectrum in hot or dense matter
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We explore the effects of breaking and restoration of chiral and axial symmetries using an extended three-flavor Nambu-Jona-Lasinio model that incorporates explicitly the axial ano…