Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Braghin, Fabio"'
Autor:
Adhikari, Prabal, Ammon, Martin, Avancini, Sidney S., Ayala, Alejandro, Bandyopadhyay, Aritra, Blaschke, David, Braghin, Fabio L., Buividovich, Pavel, Cardoso, Rafael P., Cartwright, Casey, Castaño-Yepes, Jorge David, Chernodub, Maxim, Coppola, M., Das, Mayusree, Dutra, Mariana, Endrődi, Gergely, Fang, Jianjun, Farias, Ricardo L. S., Fraga, Eduardo S., Frazon, Arthur, Fukushima, Kenji, García-Muñoz, Juan D., Garnacho-Velasco, Eduardo, Dumm, D. Gomez, Grieninger, Sebastian, Gulminelli, Francesca, Hernandez, Juan, Islam, Chowdhury Aminul, Kaminski, Matthias, Kotov, Andrey, Krein, Gastão, Li, Jing, Lo, Pok Man, Loewe, Marcelo, Lourenço, Odilon, Markó, Gergely, Marquez, Kau D., Mizher, Ana, Mukhopadhyay, Banibrata, Muñoz, Enrique, Noguera, S., Nunes, Rodrigo M., Pais, Helena, Palhares, Letícia F., Providência, Constança, Raya, Alfredo, Restrepo, Tulio, Rojas, Juan Cristóbal, Scoccola, N. N., Scurto, Luigi, Sedrakian, Armen, Smith, Dominik, Tavares, William Rafael, Tejeda-Yeomans, Maria E., Timóteo, Varese S., Tolos, Laura, Villavicencio, Cristian, Weber, Fridolin, Yasui, Shigehiro, Zamora, Renato, Zuraiq, Zenia
Magnetic fields are ubiquitous across different physical systems of current interest; from the early Universe, compact astrophysical objects and heavy-ion collisions to condensed matter systems. A proper treatment of the effects produced by magnetic
Externí odkaz:
http://arxiv.org/abs/2412.18632
Autor:
Braghin, Fabio L.
Pseudoscalar and axial neutral and charged pion-constituent quark coupling constants are investigated with nondegenerate quark masses in different kinematical points, off shell and on shell pions and constituent quarks. For the neutral pion, mixing e
Externí odkaz:
http://arxiv.org/abs/2412.15104
Autor:
Braghin, Fabio L.
Effective three meson couplings, based in flavor U(3) quark-antiquark interactions, are considered to describe two light neutral axial meson Strong decays, $A \sim f_1(1285)$ and $f_{1S} (1420)$, and the charged rho meson decay in the following chann
Externí odkaz:
http://arxiv.org/abs/2408.05574
Autor:
Froldi, Igor de M., Braghin, Fabio L.
The quark determinant in the presence of a background gluon field is calculated in a large quark mass derivative expansion by considering quark sources. The resulting low-energy QCD Effective Field Theory (EFT) is valid for non-homogeneous fields and
Externí odkaz:
http://arxiv.org/abs/2406.19918
Autor:
Braghin, Fabio L.
Publikováno v:
Eur. Phys. J. A (2024) 60:178
By considering the one loop background field method for a quark-antiquark interaction, mediated by one (non perturbative) gluon exchange, sixth order quark effective interactions are derived and investigated in the limit of zero momentum transfer for
Externí odkaz:
http://arxiv.org/abs/2405.00880
Publikováno v:
Phys. Rev. D 109, 034014 (2024)
Weak magnetic field induced corrections for the Yukawa potential due to one pion exchange between two constituent quarks (nucleons) are presented. For that, the constant magnetic field effect on the pion propagator and on the pion form factor are tak
Externí odkaz:
http://arxiv.org/abs/2308.12122
Publikováno v:
Eur. Phys. J. A (2023) 59: 271
By considering the background field method we calculate one-loop polarization corrections to the coupling constant of the flavor-U(5) Nambu-Jona-Lasinio (NJL) model with degenerate up and down quarks. They break flavor and chiral symmetries, and they
Externí odkaz:
http://arxiv.org/abs/2301.05695
Autor:
Braghin, Fabio L.
The quark antiquark components of the U(3) lightest scalar meson nonet are investigated by considering the Nambu-Jona-Lasinio model with flavor-dependent coupling constants that were derived by considering (non-perturbative) gluon exchange.The strang
Externí odkaz:
http://arxiv.org/abs/2212.06616
Autor:
Froldi, Igor de M., Braghin, Fabio L.
Publikováno v:
Ann. of Phys. 444 (2022) 169026
Some well known gauge scalar potential very often considered or used in the literature are investigated by means of the classical Yang Mills equations for the $SU(2)$ subgroups of $N_c=3$. By fixing a particular shape for the scalar potential, the re
Externí odkaz:
http://arxiv.org/abs/2204.01655
Autor:
Moreira, Thiago H., Braghin, Fabio L.
Magnetic field dependent corrections for the coupling constant of the Nambu-Jona-Lasinio model are calculated by considering the one-loop background field method. These coupling constants turn out to break chiral and flavor symmetries and they lead t
Externí odkaz:
http://arxiv.org/abs/2202.10559