منابع مشابه
Hyperon masses in nuclear matter.
We analyze hyperon and nucleon mass shifts in nuclear matter using chiral perturbation theory. Expressions for the mass shifts that include strong interaction effects at leading order in the density are derived. Corrections to our results are suppressed by powers of the Fermi momentum divided by either the chiral symmetry breaking scale or the nucleon mass. Our work is relevant for neutron star...
متن کاملCorrelations and Pairing in Nuclear
The innuence of correlations on the critical temperature and density for the onset of superruidity in nuclear matter is investigated within the scheme of Nozi eres and Schmitt-Rink 1]. For symmetric nuclear matter a smooth transition from Bose-Einstein condensation (BEC) of deuteron-like bound states at low densities and low temperatures to Bardeen-Cooper-Schrieeer (BCS) pair-ing at higher dens...
متن کاملCorrelations in Exotic Nuclear Matter
In recent years, the interest in correlations inside nuclei became an important issue in nuclear physics. On the theoretical, side several calculations using different models including short-range correlation have been done for nuclear matter. However, there is still not much known about the role of correlations in neutron star matter containing hyperons. In our work we examined dynamical corre...
متن کاملRegularity and chaos in the nuclear masses
Shell effects in atomic nuclei are a quantum mechanical manifestation of the single–particle motion of the nucleons. They are directly related to the structure and fluctuations of the single–particle spectrum. Our understanding of these fluctuations and of their connections with the regular or chaotic nature of the nucleonic motion has greatly increased in the last decades. In the first part of...
متن کاملExploring Vector Meson Masses in Nuclear Collisions *
The formalism developed earlier by us for the propagation of a resonance in the nuclear medium in proton-nucleus collisions has been modified to the case of vector boson production in heavy-ion collisions. The first part of the talk describes this formalism. The formalism includes coherently the contribution to the observed di-lepton production from the decay of a vector boson inside as well as...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.042502