1 / 21

S.M. Dorkin

S.M. Dorkin. Bogoliubov Lab. Theor . Phys . JINR, Dubna. co-author s B. Kaempfer ( HZDR , Germany ) , L.P. Kaptari ( BLTPh ) (PRC 89 (2014), PRC 91 (2015), arXiv: 1512.06596, Few Body Syst.49, Few Body Syst.49, Few Body Syst.42…). H adronic matter under extreme conditions.

Jimmy
Download Presentation

S.M. Dorkin

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. S.M. Dorkin Bogoliubov Lab. Theor. Phys .JINR, Dubna co-authorsB. Kaempfer(HZDR, Germany), L.P. Kaptari (BLTPh) (PRC 89 (2014), PRC 91 (2015), arXiv: 1512.06596, Few Body Syst.49, Few Body Syst.49, Few Body Syst.42…) Hadronic matter under extreme conditions Dubna, Oct. 31 – Nov. 3, 2016

  2. MOTIVATION • QGP signals (GSI (10-40 GeV/N), RHIC (√SNN> 200 GeV), NICA (√SNN> 4-11 GeV/N)... hadronic matter under extreme conditions

  3. S.M. Dorkin MOTIVATION • QGP signals (GSI, RHIC, NICA ..) Heavy Ion collisions Freeze-out Dense matter

  4. S.M. Dorkin

  5. S.M. Dorkin Rainbow approximation ( ) + effective model for gluon propagator: IR UV

  6. S.M. Dorkin RESULTS

  7. S.M. Dorkin RESULTS (5MeV) (1GeV) BSE domain

  8. S.M. Dorkin SINGULARITIES OF THE PROPAGATOR FUNCTIONS !!!

  9. S.M. Dorkin

  10. S.M. Dorkin

  11. S.M. Dorkin INTERMEDIATE SUMMARY The Dyson–Schwinger-Bethe-Salpeter approach + rainbow approximation with only two-three effective parameters, describe fairly well the vacuum (T=0) properties (masses, decay constants…) of the scalar, pseudoscalar, vector etc., mesons and allow for Poincarè covariant studies of reactions with mesons

  12. S.M. Dorkin Finite Temperatures The statistical density matrix: Ansamble average of an operator :

  13. L. P. Kaptari & S.M. Dorkin Main difference 1. 2. 3.

  14. S.M. Dorkin

  15. S.M. Dorkin

  16. L. P. Kaptari & S.M. Dorkin

  17. S.M. Dorkin

  18. S.M. Dorkin

  19. S.M. Dorkin

  20. S.M. Dorkin SUMMARY • The considered model, based on the Dyson–Schwinger-Bethe-Salpeter equations with only two-three effective parameters, describes fairly well the vacuum (T=0) properties (masses, electroweak decay constants…) of the scalar, pseudoscalar, vector etc. mesons, and allows for a Poincarè covariant study of processes with mesons • Within such effective models one can investigate the analytical structure of the quark propagators related to such fundamental characteristics of QCD as confinement and dynamical chiral symmetry breaking phenomena encoded in the chiral condensate • A direct generalization of the model for finite temperatures demonstrates that it still provides qualitatively descriptions of critical phenomena in hot matter, however qiantitavely the critical temperatures Tcrelevant to possible signals of QGP are underestimate in comparison with lattice calculation results. This is a clear indication that the interaction kernel must receive an additional dependence on temperature. • We propose a T-dependence of the interaction kernel, which suppresses the IR part at high temperatures and which provides (pseudo-) critical temperatures close to those from lattice calculation. This kernel will allow for a further implementation into the BS equation to investigate the in-medium modifications of the meson properties at high temperature and density.

  21. L.P. Kaptari & S.M. Dorkin SOLUTION BSE

More Related