Using the Beth-Uhlenbeck approach to describe the kaon to pion ratio in a 2+1 flavor PNJL model
arXiv:1912.13162 · doi:10.3390/particles3010014
Abstract
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. It is shown that in terms of phase shifts in the K+ channel an additional low-energy mode could appear as a bound state in medium since the masses of the quark constituents are different. The comparison with experimental data for the ratios is performed and the influence of the anomalous mode to the "horn" effect in the K+/pi+ ratio is discussed.
arXiv comment8 pages, 4 figures, Talk at the II International Workshop on Theory of Hadronic Matter Under Extreme Conditions
References in corpus (15)
- Chiral effective model with the Polyakov loop
- Phases of QCD: lattice thermodynamics and a field theoretical model
- Polyakov loop, diquarks and the two-flavour phase diagram
- Mesonic correlation functions at finite temperature and density in the Nambu-Jona-Lasinio model with a Polyakov loop
- The chiral and deconfinement crossover transitions: PNJL model beyond mean field
- Transition from Baryonic to Mesonic Freeze-Out
- Scalar-pseudoscalar meson behavior and restoration of symmetries in SU(3) PNJL model
- On the Early Stage of Nucleus--Nucleus Collisions
- Pseudoscalar neutral mesons in hot and dense matter
- Generalized Beth--Uhlenbeck approach to mesons and diquarks in hot, dense quark matter
- Pseudoscalars Mesons in Hot, Dense Matter
- Explanation of hadron transverse-momentum spectra in heavy-ion collisions at sqrt(sNN) = 2.76 TeV within chemical non-equilibrium statistical hadronization model
- Mott dissociation of pions and kaons in hot, dense quark matter
- Polyakov-loop suppression of colored states in a quark-meson-diquark plasma
- Strange matter and kaon to pion ratio in SU(3) PNJL model