105 citations · 1.6k across the 56 of their papers we have counts for
50 papers · 1 filter
- mixing in the presence of a strong magnetic field
D. Gomez Dumm, S. Noguera, N. N. Scoccola
We analyze the mixing between the meson and the photon in the presence of a strong uniform magnetic field, in the context of a two-flavor Nambu-Jona-Lasinio model. It is show…
Charged pion decay in a laser field
D. Gomez Dumm, S. Noguera, N. N. Scoccola
We study the decays in the presence of a background electromagnetic plane wave with circular polarization. We find that, in the presence of this background, t…
decay under strong magnetic fields in the NJL model
Máximo Coppola, Daniel Gomez Dumm, Norberto N. Scoccola
We study the anomalous decay under an external uniform magnetic field in the framework of a two-flavor Nambu-Jona-Lasinio model. It is seen that the full decay width g…
Charged meson masses under strong magnetic fields: gauge invariance and Schwinger phases
D. Gomez Dumm, S. Noguera, N. N. Scoccola
We study the role of the Schwinger phase (SP) that appears in the propagator of a charged particle in the presence of a static and uniform magnetic field . We first note t…
Cold magnetized quark matter at finite density in a nonlocal chiral quark model
S. A. Ferraris, D. Gomez Dumm, A. G. Grunfeld +1
We study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactio…
Weak decays of magnetized charged pions in the symmetric gauge
M. Coppola, D. Gomez Dumm, S. Noguera +1
We consider the decay () in the presence of an arbitrary large uniform magnetic field, using the symmetric gauge. The consequences of the axial…
Magnetic field driven enhancement of the weak decay width of charged pions
M. Coppola, D. Gomez Dumm, S. Noguera +1
We study the effect of a uniform magnetic field on the decays , where , carrying out a general analysis that includes four deca…
Neutral and charged pion properties under strong magnetic fields in the NJL model
M. Coppola, D. Gomez Dumm, S. Noguera +1
In the framework of the Nambu--Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors.…
Pion-to-vacuum vector and axial vector amplitudes and weak decays of pions in a magnetic field
M. Coppola, D. Gomez Dumm, S. Noguera +1
We propose a model-independent parametrization for the one-pion-to-vacuum matrix elements of the vector and axial vector hadronic currents in the presence of an external uniform ma…
Pion masses under intense magnetic fields within the NJL model
M. Coppola, D. Gomez Dumm, N. N. Scoccola
The behavior of charged and neutral pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor Nambu-Jona-Lasinio (NJL) model. Ana…
Charged pion masses under strong magnetic fields in the NJL model
M. Coppola, D. Gomez Dumm, N. N. Scoccola
The behavior of charged pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor NJL model, using a magnetic field-independent r…
Neutral meson properties under an external magnetic field in nonlocal chiral quark models
D. Gomez Dumm, M. F. Izzo Villafañe, N. N. Scoccola
We study the behavior of neutral meson properties in the presence of a static uniform external magnetic field in the context of nonlocal chiral quark models. The formalism is worke…
Magnetic catalysis and inverse magnetic catalysis in nonlocal chiral quark models
V. P. Pagura, D. Gomez Dumm, S. Noguera +1
We study the behavior of strongly interacting matter under an external constant magnetic field in the context of nonlocal chiral quark models within the mean field approximation. W…
Generalized Ginzburg-Landau approach to inhomogeneous phases in nonlocal chiral quark models
J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola
We analyze the presence of inhomogeneous phases in the QCD phase diagram within the framework of nonlocal chiral quark models. We concentrate in particular in the positions of the…
The pion distribution amplitude and the pion-photon transition form factor in a nonlocal chiral quark model
D. Gomez Dumm, S. Noguera, N. N. Scoccola +1
We study the pion Distribution Amplitude (πDA) in the context of a nonlocal chiral quark model. The corresponding Lagrangian reproduces the phenomenological values of the pion mass…
Deconfinement and chiral restoration in nonlocal SU(3) chiral quark models
J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola
We study the features of nonlocal SU(3) chiral quark models with wave function renormalization. Model parameters are determined from meson phenomenology, considering different nonl…
Form factors of radiative pion decays in nonlocal chiral quark models
D. Gomez Dumm, S. Noguera, N. N. Scoccola
We study the radiative pion decay pi+ -> e+ nu_e gamma within nonlocal chiral quark models that include wave function renormalization. In this framework we analyze the momentum dep…
Pion radiative weak decays in nonlocal chiral quark models
D. Gomez Dumm, S. Noguera, N. N. Scoccola
We analyze the radiative pion decay pi+ -> e+ nu_e gamma within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector a…
Meson properties at finite temperature in a three flavor nonlocal chiral quark model with Polyakov loop
G. A. Contrera, D. Gomez Dumm, Norberto N. Scoccola
We study the finite temperature behavior of light scalar and pseudoscalar meson properties in the context of a three-flavor nonlocal chiral quark model. The model includes mixing w…
Hadron structure in tau -> KKpi nu_tau decays
D. Gomez Dumm, P. Roig, A. Pich +1
We analyse the hadronization structure of both vector and axial-vector currents leading to tau -> KKpi nu_tau decays. At leading order in the 1/Nc expansion, and considering only t…
Color neutrality effects in the phase diagram of the PNJL model
D. Gomez Dumm, D. B. Blaschke, A. G. Grunfeld +1
The phase diagram of a two-flavor Polyakov loop Nambu-Jona-Lasinio model is analyzed imposing the constraint of color charge neutrality. Main effects of this constraint are a shrin…
Constraints on economical 331 models from mixing of K, Bd and Bs neutral mesons
J. M. Cabarcas, D. Gomez Dumm, R. Martinez
We analyze the effect of flavor changing neutral currents within 331 models. In particular, we concentrate in the so-called "economical" models, which have a minimal scalar sector.…
Nonlocal SU(3) chiral quark models at finite temperature: the role of the Polyakov loop
Gustavo A. Contrera, Daniel Gomez Dumm, Norberto N. Scoccola
We analyze the role played by the Polyakov loop in the description of the chiral phase transition within the framework of nonlocal SU(3) chiral models with flavor mixing. We show t…
Equation of state for hybrid compact stars with a nonlocal chiral quark model
A. G. Grunfeld, J. Berdermann, D. B. Blaschke +3
We study the thermodynamics of two flavor color superconducting (2SC) quark matter within a nonlocal chiral quark model, using both instantaneous and covariant nonlocal interaction…