3 papers
nucl-th2025
Generalized Beth--Uhlenbeck entropy formula from the derivable approach
David Blaschke, Gerd Röpke, Gordon Baym
We derive a generalized Beth-Uhlenbeck formula for the entropy of a dense fermion system with strong two-particle correlations, including scattering states and bound states. We wor…
hep-ph2025
Primordial black-hole formation and heavy r-process element synthesis from the cosmological QCD transition. Two aspects of an inhomogeneous early Universe
M. Gonin, G. Hasinger, D. Blaschke +2
We review the role of primordial black holes (PBHs) for illuminating the dark ages of the cosmological evolution and as dark matter candidates. We elucidate the role of phase trans…
nucl-th2024
Medium effects on freeze-out of light clusters at NICA energies
G. Roepke, D. Blaschke, Yu. B. Ivanov +3
We estimate the chemical freeze-out of light nuclear clusters for NICA energies of above 2 A GeV. On the one hand we use results from the low energy domain of about 35 A MeV, where…