67 citations · 886 across the 59 of their papers we have counts for
43 papers · 1 filter
Cancellation of the sigma mode in the thermal pion gas by quark Pauli blocking
David Blaschke, Alexandra Friesen, Yuriy Kalinovsky
We calculate the pressure of the interacting pion gas using the Beth-Uhlenbeck approach to the relativistic virial expansion with Breit-Wigner phase shifts for the - and $\varrh…
Pion damping width and pion spectral function in hot pion gas
D. Goderidze, A. Friesen, Yu. Kalinovsky
The temperature behaviour of the pion width in the hadronic phase is investigated in the framework of the NJL model. The contribution to the width from the pion-pion collision is c…
Mott dissociation and kaon to pion ratio in the EPNJL model
D. Blaschke, A. V. Friesen, Yu. L. Kalinovsky +1
The behaviour of pseudoscalar mesons within the SU(3)PNJL-like models is considered for finite T and . We compare the pole approximation (Breit-Wigner) with the Beth-Uhlenbeck…
Chiral phase transition and kaon-to-pion ratios in the entanglement SU(3) PNJL model
D. Blaschke, A. V. Friesen, Yu. L. Kalinovsky +1
Within the three-flavor PNJL and EPNJL chiral quark models we have obtained pseudoscalar meson properties in quark matter at finite temperature and baryochemical potential $μ_B…
QCD Phase Diagram at NICA energies: horn effect and light clusters in THESEUS
D. Blaschke, A. V. Friesen, Yu. B. Ivanov +5
We discuss recent progress in the development of the three-fluid hydrodynamics-based program THESEUS towards an event generator suitable for applications to heavy-ion collisions at…
Using the Beth-Uhlenbeck approach to describe the kaon to pion ratio in a 2+1 flavor PNJL model
D. Blaschke, A. Friesen, Yu. Kalinovsky +1
The kaon to pion ratios are discussed in the framework of a 2+1 flavor PNJL model. In order to interpret the behaviour of bound states in medium the Beth-Uhlenbeck approach is used…
Decays of and in the extended Nambu - Jona- Lasinio model
A. I. Ahmadov, Yu. L. Kalinovsky, M. K. Volkov
In the extended Nambu - Jona - Lasinio model the decay widths and are studied in the quark one -lo…
Impact of the vector interaction on the phase structure of QCD matter
A. V. Friesen, Yu. L. Kalinovsky, V. D. Toneev
The 2-flavor Polyakov-loop extended model is generalized by taking into account the effective four-quark vector-type interaction with the coupling strengths, which are endowed with…
Pion and sigma meson dissociation in a modified NJL model at finite temperature
A. Dubinin, D. Blaschke, Yu. L. Kalinovsky
We investigate pion and sigma meson correlations in hot quark matter within a modified NJL model. Special emphasis is on the transformation of mesonic bound states to resonances (M…
D mesons at finite temperature and density in the PNJL model
D. Blaschke, P. Costa, Yu. L. Kalinovsky
We study D meson resonances in hot, dense quark matter within the NJL model and its Polyakov-loop extension. We show that the mass splitting between D^+ and D^- mesons is moderate,…
Diquark Bose-Einstein condensation at strong coupling
D. S. Zablocki, D. B. Blaschke, R. Anglani +1
We investigate the phase structure of the Nambu--Jona-Lasinio model as a function of the scalar diquark coupling strength. Above a critical coupling, the b…
Two photon decays of scalar mesons in the quark NJL model
Yu. L. Kalinovsky, M. K. Volkov
Two photon decays of scalar mesons f_0(980), a_0(980), σ(600) in the quark Nambu - Jona - Lasinio (NJL) model are calculated. The contributions of the meson loops are taken into ac…
Meson formfactor scheme for the chiral Lagrangian approach to J/psi breakup cross sections motivated by a relativistic quark model
D. B. Blaschke, H. Grigorian, Yu. L. Kalinovsky
We suggest a new scheme for the introduction of formfactors for the SU(4) chiral meson Lagrangian approach to the J/psi breakup cross sections by pion and rho meson impact. This me…
and mesons in the Dyson-Schwinger approach using a generalization of the Witten-Veneziano relation
D. Horvatic, D. Blaschke, Yu. Kalinovsky +2
The description of the and mesons in the Dyson-Schwinger approach has relied on the Witten-Veneziano relation. The present paper explores the consequences of using i…
Phase transitions in quark matter and behaviour of physical observables in the vicinity of the critical end point
Pedro Costa, C. A. de Sousa, M. C. Ruivo +1
We study the chiral phase transition at finite and within the framework of the SU(3) Nambu-Jona-Lasinio (NJL) model. The QCD critical end point (CEP) and the critical lin…
The QCD critical end point in the SU(3) Nambu--Jona-Lasinio model
Pedro Costa, C. A. de Sousa, M. C. Ruivo +1
We study the chiral phase transition at finite temperature and baryonic chemical potential within the framework of the SU(3) Nambu-Jona-Lasinio (NJL) model. The QCD criti…
Effects of the restoration of U(1) symmetry on pseudoscalar meson observables
M. C. Ruivo, Pedro Costa, C. A. de Sousa +1
We investigate the restoration of chiral SUSU and axial U(1) symmetries, at finite temperature and density, in the framework of the three flavor Nambu-Jona-Las…
Scalar sigma meson at finite temperature in nonlocal quark model
D. Blaschke, Yu. L. Kalinovsky, A. E. Radzhabov +1
Properties and temperature behavior of pi and sigma bound states are studied in the framework of the nonlocal model with a separable interaction kernel based on the quark Dyson-Sch…
New contributions to heavy-quarkonium production
J. P. Lansberg, J. R. Cudell, Yu. L. Kalinovsky
We reconsider quarkonium production in a field-theoretical setting and we show that the lowest-order mechanism for heavy-quarkonium production receives in general contributions fro…
Analysis of U(1) symmetry-breaking and restoration effects on the scalar-pseudoscalar spectrum
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We explore patterns of effective restoration of the chiral U(1) symmetry using an extended three-flavor Nambu-Jona-Lasinio model that incorporates explicitly the axial anomaly…
Restoration of U(1) symmetry and meson spectrum in hot or dense matter
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We explore the effects of breaking and restoration of chiral and axial symmetries using an extended three-flavor Nambu-Jona-Lasinio model that incorporates explicitly the axial ano…
Is the U(1) symmetry restored at finite temperature or density?
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We investigate the full U(3)U(3) chiral symmetry restoration, at finite temperature and density, on the basis of the three flavor Nambu-Jona-Lasinio model with the anomaly…
Phase transitions and behavior of kaons in hot and dense matter
C. A. de Sousa, Pedro Costa, M. C. Ruivo +1
We study phase transitions and the behavior of kaons in hot and dense matter, giving special attention to the role of strange quarks. At T=0, it is found that the fraction of the s…
Effective restoration of chiral and axial symmetries at finite temperature and density
M. C. Ruivo, Pedro Costa, C. A. de Sousa +1
The effective restoration of chiral and axial symmetries is investigated within the framework of the SU(3) Nambu-Jona-Lasinio model. The topological susceptibility, modeled from la…