Información del autor
Documentos disponibles escritos por este autor (12)
Añadir el resultado a su cesta Hacer una sugerencia Refinar búsqueda
texto impreso
We calculate the bulk viscosity of the massive pion gas within unitarized chiral perturbation theory. We obtain a low-temperature peak arising from explicit conformal breaking due to the pion mass and another peak near the critical temperature, [...]texto impreso
We consider an interacting pion gas in a stage of the system evolution where thermal but not chemical equilibrium has been reached, i.e., for temperatures between thermal and chemical freeze-out T(ther)texto impreso
We present a study of the pi pi scattering amplitude in the sigma and rho channels at finite temperature and nuclear density within a chiral unitary framework. Meson resonances are dynamically generated in our approach, which allows us to analyz[...]texto impreso
We review recent results on properties of the meson gas relevant for Heavy Ion Collision and Nuclear Matter experiments, within the framework of chiral lagrangians. In particular, we describe the temperature and density evolution of the sigma an[...]texto impreso
The electrical conductivity of a pion gas at low temperatures is studied in the framework of linear response and chiral perturbation theory. The standard ChPT power counting has to be modified to include pion propagator lines with a nonzero ther[...]texto impreso
We present recent results on finite temperature electromagnetic form factors and the electrical conductivity in a pion gas. The standard Chiral Perturbation Theory power counting needs to be modified for transport coefficients. We pay special at[...]texto impreso
Using unitarized chiral perturbation theory methods, we perform a detailed analysis of the ? ? scattering poles f_0(600) and ?(770) behavior when medium effects such as temperature or density drive the system towards chiral symmetry restoration.[...]texto impreso
texto impreso
We present recent results on a systematic method to calculate transport coefficients for a meson gas (in particular, we analyze a pion gas) at low temperatures in the context of Chiral Perturbation Theory (ChPT). Our method is based on the study[...]texto impreso
We present recent results on the calculation of transport coefficients for a pion gas at zero chemical potential in Chiral Perturbation Theory (ChPT) using the Linear Response Theory (LRT). More precisely, we show the behavior of DC conductivity[...]texto impreso
We review our main results concerning the transport coefficients of a light meson gas, in particular we focus on the case of a massive pion gas Leading order results according to the chiral power-counting are presented for the DC electrical cond[...]texto impreso
We present recent results on a systematic method to calculate transport coefficients for a meson gas (in particular, we analyze a pion gas) at low temperatures in the context of Chiral Perturbation Theory. Our method is based on the study of Fey[...]
