TY - JOUR
AU - Satarov, L. M.
AU - Mishustin, I. N.
AU - Motornenko, A.
AU - Vovchenko, V.
AU - Gorenstein, M. I.
AU - Stoecker, H.
PY - 2019/09/18
Y2 - 2021/10/25
TI - Phase Transitions and Bose–Einstein Condensation in Alpha-Nucleon Matter
JF - Ukrainian Journal of Physics
JA - Ukr. J. Phys.
VL - 64
IS - 8
SE -
DO - 10.15407/ujpe64.8.745
UR - https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019384
SP - 745
AB - <p>The equation of state and the phase diagram of an isospin-symmetric chemically equilibrated mixture of a particles and nucleons (N) are studied in the mean-field approximation. We use a Skyrme-like parametrization of mean-field potentials as functions of the partial densities of particles. The parameters of these potentials are chosen by fitting the known properties of pure N- and pure a-matters at zero temperature. The sensitivity of results to the choice of the aN attraction strength is investigated. The phase diagram of the a − N mixture is studied with a special attention paid to the liquid-gas phase transitions and the Bose–Einstein condensation of a particles. We have found two first-order phase transitions, stable and metastable, which differ significantly by the fractions of a’s. It is shown that the states with a condensate are metastable.</p>
ER -