2019 COST Action CA15213 THOR Annual Meeting

2 Sept 2019, 09:00 → 6 Sept 2019, 18:00 Europe/Istanbul

Istanbul Technical University

Nihal Buyukcizmeci (Selcuk University)

Theory of hot matter and relativistic heavy-ion collisions, THOR

Annual Meeting, 2-6 September 2019, Istanbul, Turkey

Topics for Working Group Meetings 

Quark-gluon phase transition and equation of state

Non equilibrium and transport phenomena in hot dense QCD matter

Hadronisation and lepton pair production in heavy-ion collisions

Hadron, fragment and light cluster formation

Statistical and dynamical models for relativistics ion collisions

QCD phases in supernova collapse, compact stars and binary mergers

 

Scientific Committee: (names are in alphabetical order.)

Gert Aarts (Swansea University, United Kingdom)

Jorg Aichlein, (Subatech, Nantes, France)

Marcus Bleicher, ( FIAS, Frankfurt, Germany)

Alexander Botvina, ( ITP, Frankfurt University, Frankfurt, Germany)

Larissa Bravina (Oslo University, Oslo, Norway)

Nihal Buyukcizmeci (Selcuk University,  Konya, Turkey), (Local Organiser)

Elena Gonzalez Ferreiro (Universidade de Santiago de Compostela, Spain)

Umut Gursoy (Utrecht University, Netherlands)

Maria Paola Lombardo (INFN, Italy)

Boris Tomasik (Univerzita Mateja Bela, Banská Bystrica, Slovakia)

Meeting Location: İTÜ (İstanbul Technical University) Maçka Kampüsü Sosyal Tesisler Binası 34367 Teşvikiye, İstanbul, Turkey 

Accommadition-transportation.pdf

Google Map: Meeting Adress:

Poster-THOR@Istanbul2019

Scientific programme.pdf

Monday, 2 September

1 Opening remarks

İstanbul:City of two continents

Selcuk University

2 Production mechanisms for nuclear and hyper-nuclear clusters in relativistic ion collisions

Speaker: Alexander Botvina (FIAS, University of Frankfurt am Main)

istanbul2019-botvina.pdf

3 Double ratio method for the binding energies of hypernuclei in nuclear reactions

Speaker: Nihal Buyukcizmeci (Selcuk University)

NBuyukcizmeci_Istanbul2019.pdf

11:10 Coffee break

4 Progress in chiral thermodynamics

Speaker: Chihiro Sasaki

Sasaki-istanbul.pdf

5 Chiral transport in strong fields from holography

Anomaly-induced transport phenomena in presence of strong external electromagnetic fields are explored within a 4D field theory defined holographically as U(1)V×U(1)A Maxwell-Chern-Simons theory in Schwarzschild-AdS5. Two complementary studies are reported. In the first one, we present results on the Ohmic conductivity, diffusion constant, chiral magnetic conductivity, and additional anomaly-induced transport coefficients as functions of external e/m fields. Next, gradient resummation in a constant background magnetic field is performed. All-order resummed constitutive relations are parameterised by four momenta-dependent transport coefficient functions (TCFs). A highlight of this part is a thorough study of {\it non-dissipative} chiral magnetic waves (CMW) in strong magnetic fields. (reference-doi: 10.1007/JHEP05(2019)071)

Speaker: Dr Tuna Demircik (Ben-Gurion University of the Negev)

presentation_TDemircik.pdf

13:00 LUNCH

6 Heavy Quarks in Medium

Speaker: Miguel Ángel Escobedo Espinosa (Instituto Galego de Física de Altas Enerxías)

thor_escobedo.pdf

7 Broken boost invariance in 3+1D Glasma simulations

Speaker: Andreas Ipp (TU Wien)

ipp.pdf

15:50 Coffee break

8 Latest results on constraining the initial stages of heavy-ion collisions with high-pt data

Speaker: Dr Bojana Ilic (Blagojevic) (Institute of Physics Belgrade)

BI_THOR_COST2019.pdf

9 Recent results with full DREENA framework as a multipurpose tool for QGP tomography

Speaker: Dusan Zigic (Institute of Physics Belgrade)

Istanbul_DusanZıgıc.pdf

Tuesday, 3 September

10 PNJL EOS at finite density and temperature

Speaker: joerg aichelin (Subatech/CNRS)

Aichelin_COST_19_1.pdf

11 Observables of the nonequilibrium phase

Speaker: Boris Tomasik (Univerzita Mateja Bela)

11:10 Coffee break

12 Dynamical description of partonic phase at finite chemical potential

Speaker: Elena Bratkovskaya (GSI, Darmstadt)

Bratkovskaya_COST_03Sep2019.pdf

13 Weak Interaction Data for Presupernova Evolution of Massive Stars

Speaker: Prof. Jameel Un Nabi (GIK Institute of Engineering Sciences&Technology, Pakistan)

WI Data for Presupernova Evolution of Massive Stars.pdf

13:00 LUNCH

14 Domain wall networks as QCD vacuum

An approach to QCD vacuum as a medium describable in terms of statistical ensemble of almost everywhere homogeneous Abelian (anti-)self-dual gluon field is briefly reviewed. These fields can be seen as the confining medium for color charged fields as well as underline the specific realization of chiral $SU_{\rm L}(N_f)\times SU_{\rm R}(N_f)$ and $U_A(1)$ symmetries. The long-range fluctuations of topological charge density play important role both for confinement and chiral symmetry breaking.

Hadronization formalism based on this ensemble leads to manifestly defined quantum effective action for colorless hadrons. Strong, electromagnetic and weak interactions of mesons are represented in the action in terms of nonlocal $n$-point interaction vertices given by the quark-gluon loops averaged over the background ensemble. Systematic results for the mass spectrum and decay constants of radially excited light, heavy-light mesons and heavy quarkonia as well as electromagnetic form factors are presented. Interrelations between the present mean field type approach and the results of functional renormalization group and DSE results are discussed.

Peculiarities of the approach in description of deconfinement and chiral symmetry restoration under extreme conditions (strong electromagnetic fields, high energy and baryon densities) are outlined.

[1] S.N. Nedelko and V.E Voronin, arXiv:1906.00432 [hep-ph] (2019).
[2] S.N. Nedelko and V.E Voronin, Phys.Rev.D 95, 074038 (2017)
[3] S.N. Nedelko and V.E Voronin, Phys.Rev.D 93, 094010 (2016)
[4] S.N. Nedelko and V.~E.~Voronin, Eur.Phys.J. A 51, 45 (2015)
[5] B.V. Galilo and S.N. Nedelko, Phys.Rev. D 84, 094017 (2011)

Speaker: Sergei Nedelko (Joint Institute for Nuclear Research, BLTP)

Nedelko_THOR-2019.pdf

15 Jets n small systems

Speaker: Prof. Barnafoldi Gergerly Gabor (Wigner RCP Hungarian Academy of Sciences Hungary)

BarnafoldiGG_THOR_WG_2019_v2.pdf

15:50 Coffee break

16 Net-baryon fluctuations in Magnetized QCD matter

The kurtosis and skewness of net baryon-number fluctuations are studied for the magnetized phase diagram of three-flavor quark matter within the Polyakov extended Nambu–Jona-Lasinio model. The effect of magnetic catalysis and inverse magnetic catalysis is considered using two distinct scalar interactions. Special attention is given to the fluctuations dependence near the critical end points (CEPs). Regions with large fluctuations but no CEP in non-magnetized matter develop a CEP under the action of a strong magnetic field.

Speaker: Márcio Ferreira

THOR2019_Marcio.pdf

17 The spatial sub-separation of strangeness from anti-strangeness in RHICs

Speaker: Larissa Bravina

bravina_cost_2019.pdf

Wednesday, 4 September

18 Emergence of hydrodynamical behaviour in the Quark Gluon Plasma

Speaker: Prof. Jean-Paul Blaizot (IPhT, France)

Istanbul_2019_Blaizot.pdf

19 The phases of QCD and holography

Speaker: Matti Jarvinen (Utrecht University)

Jarvinen_THOR_no_video.pdf

11:10 Coffee break

20 T-dependence of the axion mass from the tied chiral and U_A(1) symmetry restoration

Speaker: Dubravko Klabucar (University of Zagreb)

KlabucarIstanbul2019.pdf

21 Eta prime in the QGP

Maria Paola Lombardo (INFN, Italy)
“

Speaker: Maria Paola Lombardo (INFN)

MpL_Istanbul_Sept2019.pdf

13:00 LUNCH

22 Jet energy loss and jet overlap in heavy ion collisions

Speaker: Prof. Iiuri Karpenko (SUBATECH Nantes, France)

karpenko.pdf

23 Entanglement Entropy in High Energy Collisions

Speaker: Michael Lublinsky

odessa-Lublinsky.pdf

15:50 Coffee break

24 Light-front approach to quarkonia production

Speaker: Roman Pasechnik (Lund university)

COST-talk_Istanbul-ROMAN.pdf

25 Partial wave analysis as a tool in baryon spectroscopy

Speaker: Mirza Hadzimehmedovic (University of Tuzla)

Mirza_Prez.pdf

Thursday, 5 September

26 Management Committee Meeting

Speaker: Marcus Bleicher (Uni Frankfurt)

11:15 Coffee break

27 Management Committee Meeting

Speaker: Boris Tomasik (Univerzita Mateja Bela)

14:00 LUNCH

28 Discussion- White paper

15:50 Coffee break

29 Dense nuclear and quark matter from holography

There are currently no first-principle calculations for QCD at large, but not asymptotically large, baryon densities. For instance, we do not know at which densities there is a transition from nuclear matter to deconfined quark matter and what the nature of this transition is. I will discuss a holographic approach, using the Sakai-Sugimoto model, in which nuclear matter and quark matter are treated consistently on the same footing. In particular, baryons are described as instantons in the bulk and I will explain an approximation that takes into account instanton interactions. The results show that nuclear and quark matter can be connected continuously, and thus the model can be used to study a potential quark-hadron continuity at densities relevant for the cores of neutron stars.

Speaker: Andreas Schmitt (University of Southampton)

schmitt.pdf

30 Testing photon and dilepton rates in thermal QCD

“

Speaker: Mikko Sakari Laine (Universitaet Bern (CH))

mikko_istanbul19.pdf

Friday, 6 September

31 Hadrons masses at high Tc

Jon-Ivar Skullerud

Speaker: Prof. Jon-Ivar Skullerud ((National University of Ireland Maynooth, Ireland)

Jon Ivar_Istanbul19.pdf

32 Chiral Symmetry Restoration, patterns and partners within the QCD phase diagram

I will review several aspects of the QCD phase diagram, paying special attention to the interplay between chiral and $U(1)_A$ restoration, exploring partner degeneration and patterns of symmetry breaking. I will show that the use of Ward Identities (WI) allows to shed light on this issue, being also a fruitful tool for the understanding of thermal observables. In addition, effective chiral lagrangians provide a model-independent realization of these ideas. In fact, a simple meson gas description might be already a good approximation for certain observables. Thus, Chiral Perturbation Theory (ChPT) scattering amplitudes combined with unitarization generate a thermal $f_0(500)$ state which saturates the scalar susceptibility in accordance with the lattice. On the other hand, a $U(3)$ ChPT-based analysis of the topological susceptibility reveals interesting aspects of the role of the $\eta'$ state and the connection with chiral and $U_A(1)$ restoration through WI.

Speaker: Prof. Angel Gomez Nicola (Universidad Complutense Madrid)

GomezNicolaTHOR2019.pdf

11:10 Coffee break

33 Finite density QCD

Speaker: Owe Philipsen (Goethe-University Frankfurt)

Owe_cost_thor19.pdf

34 Collective dynamics in small systems

Speaker: Piotr Bozek (AGH University of Science and Technology)

istanbul-Bozek.pdf

35 General discussion-Closing remarks