403 citations · 8.9k across the 314 of their papers we have counts for
98 papers · 1 filter
Thermodynamics of quark matter with multiquark clusters in an effective Beth-Uhlenbeck type approach
D. Blaschke, M. Cierniak, O. Ivanytskyi +1
We describe multiquark clusters in quark matter within a Beth-Uhlenbeck approach in a background gluon field coupled to the underlying chiral quark dynamics using the Polyakov gaug…
Effect of color superconductivity on the mass of hybrid neutron stars in an effective model with pQCD asymptotics
David Blaschke, Udita Shukla, Oleksii Ivanytskyi +1
The effective cold quark matter model by Alford, Braby, Paris and Reddy (ABPR) is used as a tool for discussing the effect of the size of the pairing gap in three-flavor (CFL) quar…
Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
Agnieszka Sorensen, Kshitij Agarwal, Kyle W. Brown +133
The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics. With advances in microscopic theories for nuclear interact…
Hybrid star phenomenology from the properties of the special point
Christoph Gärtlein, Oleksii Ivanytskyi, Violetta Sagun +1
We study the properties of hybrid stars containing a color superconducting quark matter phase in their cores, which is described by the chirally symmetric formulation of the confin…
Early deconfinement of asymptotically conformal color-superconducting quark matter in neutron stars
Oleksii Ivanytskyi, David Blaschke, Tobias Fischer +1
We present a relativistic density functional approach to color superconducting quark matter that mimics quark confinement by a fast growth of the quasiparticle selfenergy in the co…
Special point "trains" in the M-R diagram of hybrid stars
David Blaschke, Alexander Ayriyan, Mateusz Cierniak +3
We present a systematic investigation of the possible locations for the special point (SP), a unique feature of hybrid neutron stars in the mass-radius diagram. The study is perfor…
Recovering the conformal limit of color superconducting quark matter within a confining density functional approach
Oleksii Ivanytskyi, David Blaschke
We generalize a recently proposed confining relativistic density-functional approach to the case of density dependent vector and diquark couplings. The particular behavior of these…
Early quark deconfinement in compact star astrophysics and heavy-ion collisions
Oleksii Ivanytskyi, David Blaschke, Tobias Fischer +1
Based on a recently developed relativistic density functional approach to color-superconducting quark matter and a novel quark-hadron transition construction which phenomenological…
Deuteron yields from LHC: Continuum correlations and in-medium effects
Benjamin Dönigus, Gerd Röpke, David Blaschke
To explain the production of light nuclei in heavy-ion collisions at extreme energies, we focus on the deuteron case. A Gibbs ensemble at chemical freeze-out is a prerequisite to i…
A new class of hybrid EoS with multiple critical endpoints for simulations of supernovae, neutron stars and their mergers
Oleksii Ivanytskyi, David Blaschke
We introduce a family of equations of state (EoS) for hybrid neutron star (NS) matter that is obtained by a two-zone parabolic interpolation between a soft hadronic EoS at low dens…
Density functional approach to quark matter with confinement and color superconductivity
Oleksii Ivanytskyi, David Blaschke
We present a novel relativistic density-functional approach to modeling quark matter with a mechanism to mimic confinement. The quasiparticle treatment of quarks provides their sup…
Effects of a strong phase transition on supernova explosions, compact stars and their mergers
Andreas Bauswein, David Blaschke, Tobias Fischer
We outline a theoretical approach supporting strong phase transitions from normal nuclear matter to the deconfined quark-gluon plasma, in the equation of state (EOS) for compact st…
Sexaquark dilemma in neutron stars and its solution by quark deconfinement
M. Shahrbaf, D. Blaschke, S. Typel +2
Following the idea that a stable sexaquark state with quark content (uuddss) would have gone unnoticed by experiment so far and that such a particle would be a good dark matter can…
Quark deconfinement in compact stars through sexaquark condensation
D. Blaschke, O. Ivanytskyi, M. Shahrbaf
In this contribution, we present for the first time a scenario according to which early quark deconfinement in compact stars is triggered by the Bose-Einstein condensation (BEC) of…
Neutron stars with crossover to color superconducting quark matter
D. Blaschke, E. -O. Hanu, S. Liebing
We follow the idea that the QCD phase diagram may be described by a crossover from a hadron resonance gas to perturbative QCD using the switch function ansatz of Albright, Kapusta…
Quark-nuclear hybrid equation of state for neutron stars under modern observational constraints
G. A. Contrera, D. Blaschke, J. P. Carlomagno +2
We study a family of equations of state for hybrid neutron star matter. The hybrid EOS are obtained by a Maxwell construction of the first-order phase transition between a hadronic…
Confining density functional approach for color superconducting quark matter and mesonic correlations
Oleksii Ivanytskyi, David Blaschke, Konstantin Maslov
We present a novel relativistic density-functional approach to modeling quark matter with a mechanism to mimic confinement. The quasiparticle treatment of quarks provides their sup…
Locating the special point of hybrid neutron stars
Mateusz Cierniak, David Blaschke
The special point is a feature unique to models of hybrid neutron stars. It represents a location on their mass--radius sequences that is insensitive to the phase transition densit…
Hybrid neutron stars in the mass-radius diagram
Mateusz Cierniak, David Blaschke
We present a systematic investigation of the possible locations for the special point (SP), a unique feature of hybrid neutron stars in the mass-radius. The study is performed with…
Constraining free parameters of a color superconducting non-local Nambu-Jona-Lasinio model using Bayesian analysis of neutron stars mass and radius measurements
Mahboubeh Shahrbaf, Sofija Antić, A. Ayriyan +2
We provide a systematic study of hybrid neutron star equations of state (EoS) consisting of a relativistic density functional for the hadronic phase and a covariant nonlocal Nambu-…
Unified quark-hadron EoS and critical endpoint in the QCD phase diagram
David Blaschke
We present a recent development towards a unified description of quark-hadron matter in the QCD phase diagram that is based on a cluster decomposition of the generalized Beth-Uhlen…
Induced Surface and Curvature Tensions Equation of State of Hadrons with Relativistic Excluded Volumes and its Relation to Morphological Thermodynamics
K. A. Bugaev, N. S. Yakovenko, P. V. Oliinyk +4
An analytical formula that accurately accounts for the Lorentz contraction of the excluded volume of two relativistic hadrons with hard-core repulsion is worked out. Using the obta…
Chemical freeze-out of light nuclei in high energy nuclear collisions and resolution of the hyper-triton chemical freeze-out puzzle
K. A. Bugaev, O. V. Vitiuk, B. E. Grinyuk +14
We present a summary of the recent results obtained with the novel hadron resonance gas model with the multicomponent hard-core repulsion which is extended to describe the mixtures…
Chirally improved quark Pauli blocking in nuclear matter and applications to quark deconfinement in neutron stars
David Blaschke, Hovik Grigorian, Gerd Röpke
The relativistic mean field (RMF) model of the nuclear matter equation of state has been modified by including the effect of Pauli-blocking owing to quark exchange between the bary…