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SUMMARY:Hard thermal loops and soft deconfinement in the EoS for quark-had
 ron matter
DTSTART;VALUE=DATE-TIME:20230531T152500Z
DTEND;VALUE=DATE-TIME:20230531T155000Z
DTSTAMP;VALUE=DATE-TIME:20261009T213341Z
UID:indico-contribution-402@indico.ipb.ac.rs
DESCRIPTION:Speakers: David Blaschke (University of Wroclaw)\nWe describe 
 multiquark clusters in quark matter within a Beth-Uhlenbeck approach in a 
 background gluon field that is coupled to the underlying chiral quark dyna
 mics using the Polyakov-gauge and an effective potential for the traced Po
 lyakov-loop. A higher multiquark cluster of size n is described as a binar
 y composite of smaller subclusters n1 and n2 (n1+n2=n ) with a bound state
  and scattering state spectrum. For the corresponding cluster-cluster phas
 e shifts we use two simple ansätze that capture the Mott dissociation of 
 quark clusters as a function of temperature and chemical potential\, the s
 oft deconfinement. We compare the simple ""step-up-step-down"" model that 
 ignores continuum correlations with an improved model contains them in a g
 eneric form. In order to explain the model\, we restrict ourselves here to
  the cases where 1≤n≤6. A striking result is the suppression of the ab
 undance of colored multiquark clusters at low temperatures by the coupling
  to the Polyakov loop. This is understood in close analogy to the suppress
 ion of quark distributions by the same mechanism and we derive here the co
 rresponding Polyakov-loop generalized distribution functions of n-quark cl
 usters. For a successful comparison with lattice QCD thermodynamics it is 
 important to include perturbative QCD contributions\, the hard thermal loo
 ps.\n\nhttps://events.saifa.rs/event/554/contributions/402/
LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia
URL:https://events.saifa.rs/event/554/contributions/402/
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