Flow and heavy flavour in high energy heavy-ion collisions: GRN workshop

24 Feb 2015, 08:00 → 26 Feb 2015, 19:50 Asia/Seoul

JungSeok Memorial Library (Inha University)

The Workshop on "Flow and heavy flavour in high energy heavy-ion collisions” will be held February 24-26 at Inha University in South Korea. This workshop is initiated by collaboration between Germany-Heidelberg University/GSI and Korea-Inha university and we would like to focus on flow and heavy flavour in high energy heavy-ion collisions. There is no registration fee for the workshop. Please register via the "Registration" page on the menu. Organizers: Johanna Stachel, Silvia Masciocchi, MinJung Kweon, Jin-Hee Yoon, Hyun-Chul Kim

Slides GRNWorkshopPrograms.pdf

Tuesday, 24 February

1 Welcome

2 Quarkonium Transverse Momentum Distribution in High Energy Nuclear Collisions

Abstract: The quarkonium transverse momentum distribution is more sensitive to the nature of the hot quantum chromodynamic matter created in high energy nuclear collisions compared with the yield. Taking a dynamic transport approach for quarkonium motion together with a hydrodynamic description for the medium evolution, the cancellation between the two hot nuclear matter effects, the dissociation and the regeneration, controls the quarkonium transverse momentum distribution. In particular, the second moment of the distribution can be used to differentiate between the hot mediums produced at SPS, RHIC and LHC energies.

Speaker: Prof. Peng Fei Zhuang

Slides Inha2015_Zhuang.pdf

3 Open-quantum systems view of Bottomonium suppression in the QGP

Abstract: Measuring the temperature of the quark-gluon plasma is a central task that calls for close collaboration between experiment and theory. Understanding e.g. the dynamics of hard probes as they traverse the bulk, promises such insight into the surrounding thermal medium. Here we report on recent progress in the description of the in-medium real-time evolution of Bottomonium states, based on a complex valued effective field theory potential, extracted from first principles lattice QCD. The concept of open-quantum systems, well known in condensed matter theory, allows us to intuitively understand the role of the imaginary part of this potential as it provides a clear connection to the thermal fluctuations of the surrounding heat bath.

Speaker: Dr Alexander Rothkopf

Slides BBAR_OPEN_QUANTUM_SYSTEM_ROTHKOPF_FINAL.pdf

10:30 Coffee Break

4 Lattice NRQCD for Quarkonium at Non-zero Temperature

Using lattice NRQCD method together with Bayesian reconstruction methods for the spectral function, we study in-medium modification of quarkonium due to thermal effect without assuming a potential between the heavy quarks.

Speaker: Prof. Seyong Kim

Slides inha2015.pdf

5 CMS overview

Speaker: Prof. ByungSik Hong

Slides GRN_Hong_v2.pdf

12:30 Lunch

6 ALICE overview

Speaker: Dr Silvia Masciocchi

Slides sma_Inha.pdf

7 Quarkonium production in nuclear collisions from deconfined quarks

Speaker: Prof. Johanna Stachel

Slides inha2015_stachel.pdf

15:30 Coffee Break

8 Quarkonium and heavy mesons at CMS

Abstract: The measurement of quarkonia can provide essential information of the QGP since they experience the medium from the early stage of the collisions. For instance, a sequential disassociation of different quarkonium states can indicate the temperature of the medium. Depending on the various bounding energy, the color-screening effect leads to a different levels of suppression of each quarkonium states. However, other contributions to the final production of quarkonia should be considered, such as the cold-nuclear-matter effect and recombination, in order to understand the properties of the QGP more precisely. Measurements of charmonium states, prompt J/psi and psi(2S), charm at heavy-ion collisions will be presented in this talk to discuss aforementioned phenomena. On the other hand, open heavy-flavors are very important probes to illustrate interactions between QGP and quarks and gluons more comprehensively. Partons in the QCD medium lose energy while they traverse the QGP by elastic collisions and gluon radiation. Gluon radiation is dominated for fast partons in medium and according to the dead-cone effect, energy loss by radiation of gluons are expected to be decreased for heavier quarks. In the other half of this talk, nuclear-modification-factor of open B meson measurements and non-prompt J/psi will be presented at pPb and PbPb collisions to check whether the flavor dependent suppression occurs.

Speaker: Dr Mihee Jo

Slides 24Feb2015_MiheeJo_GRNworkshop.pdf

9 Open heavy-flavor measurements with ALICE at the LHC

Speaker: Dr Ralf Averveck

Slides rav_korea_2015_mac.pdf

17:30 Discussion

18:30 Workshop Dinner

Wednesday, 25 February

10 Di-electron Measurements at RHIC

Speaker: Dr Zhao Jie

Slides GRN2014_JieZhao.pdf

11 Review of Two Particle Correlations observed in Proton+Proton and Heavy Ion Collisions at CMS

Abstract: The CMS collaboration has recorded 150 μb-1 and 35 nb-1 of PbPb and pPb collisions, at 2.76TeV and 5.02TeV, respectively. This presentation reports the results of the two particle correlation measurements. A particular emphasis is given to the results regarding to the long-range correlations called ridge which is observed in all of pp, pPb and PbPb collisions.

Speaker: Dr Yongsun kim

Slides yongsun_Inha_workshop_flowAndRidge_2015_02_25-v5.pdf

10:30 Coffee Break

12 Future upgrade and physics perspective of the ALICE experiment

Speaker: Dr Yvonne Pachmayer

Slides Pachmayer_grn_2015.pdf

13 Chiral magnetic effects via instanton

Abstract: We investigate the chiral magnetic effect (CME) with the topological QCD object, i.e. instanton. The chiral susceptibility, which is the main source for CME, is interpreted as the number difference between the instant on and anti-instanton in their ensemble. A simple effective model is developed within the quark-instanton interaction picture at finite temperature in the presence of the strong external magnetic field. The numerical results again support CME observed in the heavy-ion collision experiments, and are in good agreement with the various lattice QCD simulation data.

Speaker: Prof. Seung-il Nam

Slides SiNam_2015FEB26_INHA.pdf

12:30 Lunch

14:00 Excursion: National Museum of Korea

English Guide will be provided. At the end of the excursion, we would also get dinner together.

Thursday, 26 February

14 Recent flow results at RHIC

Abstract: I'm going to talk about recent results of flow measurements at RHIC from both PHENIX and STAR. I'm also going to discuss what have we learned from the current results, and what we are able to learn in future measurements at RHIC.

Speaker: Prof. Hiroshi Masui

Slides hmasui_GRNworkshop.pdf

15 Recent Development in Hydro

Abstract: Relativistic hydrodynamic models play an important role in the physics of high-energy heavy ion collisions to describe the space-time evolution of the quark gluon plasma (QGP). In this talk, I first show results from an integrated dynamical approach in which Monte-Carlo Glauber/KLN for the initial stage, relativistic hydrodynamics for the QGP stage and kinetic theory for the hadron gas stage are combined. In particular, I emphasize the importance of hadronic rescattering effects on transverse dynamics such as elliptic flow and HBT radii. After that, some recent developments in the relativistic hydrodynamic model are highlighted. These topics include medium response to jet propagation, anomalous hydrodynamics, causal hydrodynamic fluctuation and its application to the QGP expansion.

Speaker: Prof. Tetsufumi Hirano

Slides hirano.pptx

10:30 Coffee Break

16 Azimuthal anisotropy of prompt J/psi in CMS

Abstract: The mechanisms which charmonia production is modified in the high-density medium created in ultra-relativistic heavy-ion collisions, are still not quantitatively understood. In order to disentangle among different scenarios, a multi-dimensional analysis in a wide kinematic range is need. The azimuthal anisotropy of prompt J/psi in PbPb collisions at 2.76 TeV will be presented, using the 150 μb-1 of PbPb data recorded in 2011.

Speaker: Prof. Dongho Moon

Slides GRN_WorkShop_dmoon_2015_draft_v3.pdf

17 Anisotropic flow studies in ALICE

I will present an overview of flow studies in ALICE.

Speaker: Dr Michael Weber (CERN)

Slides GRNWS_Flow_MW_20150226_v2.pdf

12:30 Lunch

18 Charmonium production in heavy ion collisions

Abstract : Starting from the discussion on issues related to charmed hadron production in heavy ion collisions, we investigate the effects of charmonium production by recombination of charm and anti-charm quarks on the nuclear modification factor of charmonium. We show that the production of charmonium through charm quark recombination plays an important role in understanding various aspects of charmonium production in heavy ion collisions.

Speaker: Prof. Sungtae Cho

Slides GRN_SCHO.pdf

19 Path-length study with Flow and RAA and Study of Flow fluctuation

Speaker: Myunggeun Song

15:10 Coffee Break

20 The Study about the modification of jet-like particle yield in Pb-Pb collisions at ALICE

Speaker: MinWoo Kim

21 Nuclear modification factor of beauty electron in Pb-Pb collisions

Speaker: Martin Voelkl

22 Nuclear modification factor of beauty electron in p-Pb collisions

Speaker: Ms Minjung Kim (Inha University)

16:55 Discussion