منابع مشابه
Chiral Dynamics and Nuclear Matter
We calculate the equation of state of isospin-symmetric nuclear matter in the threeloop approximation of chiral perturbation theory. The contributions to the energy per particle Ē(kf ) from oneand two-pion exchange diagrams are ordered in powers of the Fermi momentum kf (modulo functions of kf/mπ). It is demonstrated that, already at orderO(k4 f ), two-pion exchange produces realistic nuclear b...
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We consider a new approach to the description of dense nuclear matter in the framework of chirally symmetric, quark-based hadron models. As previously in the Skyrme model, the dense environment is described in terms of hyperspherical cells of unit baryon number. The intrinsic curvature of these cells generates a new gauge interaction for the quark fields which mediates interactions with the amb...
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The equation of state of a family of alternative linear chiral models in the mean field approximation is discussed. We investigate the analogy between some of these models with current models in the literature, and we show that it is possible to reproduce very well the saturation properties of nuclear matter. Since long time ago it has been known that chiral symmetry (CS) is essential for the u...
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E. S. Fraga, Y. Hatta, R. D. Pisarski, and J. Schaffner-Bielich Laboratoire de Physique Théorique,Université Paris XI Bâtiment 210, 91405 Orsay Cedex, France Instituto de F́ısica, Universidade Federal do Rio de Janeiro C.P. 68528, Rio de Janeiro, 21941-972 RJ, Brazil Department of Physics, Kyoto University, Kyoto 606-8502, Japan The Institute of Physical and Chemical Research (RIKEN) Wako, Saita...
متن کاملHydrodynamics of nuclear matter in the chiral limit
Using the Poisson bracket method, we construct the hydrodynamics of nuclear matter in the chiral limit, which describes the dynamics of all low-energy degrees of freedom, including the fluid-dynamical and pionic ones. The hydrodynamic equations contain, beside five Euler equations of relativistic fluid dynamics, N(2)(f)-1 second order equations describing propagating pions and N(2)(f)-1 first o...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2012
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2012.01.003