1. RHIC-BES program as a path towards future HIC(sPHENIX/J-parc)
ShinIchi Esumi
University of Tsukuba
Division of Quark
Nuclear Matters
Research Core for the
History of the Universe
Center for Integrated
Research in Fundamental
Science and Engineering
(CiRfSE)
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

2. 4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

3. 〜 a few km 〜 200 GeV 〜a few 10km 〜 5 TeV
Relativistic Heavy-Ion Collider (RHIC)
Brookhaven National Lab. (BNL)
New York, USA
Large Hadron Collider (LHC)
European Organization for Nuclear Study (CERN), Geneva, Switzerland
〜 a few km
〜 200 GeV
〜a few 10km
〜 5 TeV
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

4. Experiments at RHIC and LHC
ALICE
PHENIX
ATLAS
STAR
CMS
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

5. Towards high-density FAIR / J-PARC
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

6. S. Nagamiya
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

7. Nucleon or Quark participant scaling
QM14, J. Mitchell
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

8. Baryon density extracted from thermal model fit to
identified hadron spectra
STAR preliminary
R. Vértesi, Dec/2014,
14. Zimányi Winter School
√sNN (GeV)
mB (MeV)
#Events
#Weeks
Year
200 20
350 M 11
2010
62.4 70
67 M
1.5
39.0
115
130 M 2
27.0
155
70 M 1
2011
19.6
205
36 M
14.5
260
20 M 3
2014
11.5
315
12 M
7.7
420
4 M 4
STAR preliminary
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

9. Ratio of W(sss) / f(ss) spectra
- extraction of strange quark distribution
- based on quark coalescence
picture
RHIC-STAR
arXiv:
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

10. p v2 goes down before turning to be positive
Directed Flow v1
p v2 goes down before turning to be positive
arXiv:
PRL112 (2014) 16,
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

11. mass dependence of v2 with hydro-model
RHIC vs LHC
Very strong radial flow in data. Not enough radial flow in hydro, or hadronic afterburner.
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

12. Elliptic Flow v2 --- departure from quark number scaling ---
PRC88 (2013)
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

13. Elliptic Flow difference : Dv2
arXiv:
PRL110 (2013) 14,
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

14. relation : e2initial – v2 – e2final
Event shape from HBT
relation : e2initial – v2 – e2final
Elliptic and Triangular shape : RHBTF2, RHBTF3
efinal via HBT interferometry
n=2
n=3
e2final
PHENIX, QM14
PRL112 (2014)
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

15. freeze-out shape eFinal duration time expansion velocity from HBT data
Energy dependence of
freeze-out shape eFinal
duration time
expansion velocity
from HBT data
arXiv: , PRC92 (2015) 1,
arXiv:
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

16. ＋ BG-subtracted charge separation signal as a function of beam energy
L or B ＋
Strong B-field
arXiv:
Phys.Rev.Lett. 113 (2014)
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

17. + - - + charge dependent v2 w.r.t. charge asymmetry Slope r
Signal is largest at mid-central
and reduces with beam energy
arXiv:
Phys.Rev.Lett. 114 (2015) 25,
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

18. Shape of net-proton distribution (fluctuation of conserved quantities
: net-Baryon, net-charge)
arXiv:
Phys.Rev.Lett. 112 (2014)
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

19. Higher order shape of net-proton distribution
X. Luo, CPOD2014
RHIC-STAR
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

20. Ridge or Flow p Pb Pb pp Min.Bias. pp High Mult. LHC-CMS
RHIC RUN16 will include dAu
beam energy scan
at 20, 40, 60GeV.
LHC-CMS
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

21. Partonic energy loss and Jet quenchingAu
Partonic energy loss
and Jet quenching
Reconstructed jet – hadron correlation
RHIC-STAR
Phys. Rev. Lett. 91, (2003)
LHC-CMS
2-particle correlation
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

22. LHC CMS/ATLAS : Modification of Jet fragmentation
・re-distribution towards lower pT particles ・re-distribution at larger angle
CMS QM2014
High pT
Low pT
Phys. Rev. C 90 (2014) 02490
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

23. Jet-medium interaction : hard-soft interplay
Jet axis dependence with respect to geometry T1 T2
Df vs fJet-FR.P.
Dh vs hJet
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

24. A Large-Acceptance Jet and Upsilon Detector at RHIC
Full jet and
Upsilon studies
at RHIC energy
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

25. Beam Energy Scan 2 with STAR detector at RHIC
R. Vértesi, Dec/2014,
14. Zimányi Winter School
Beam Energy Scan 2 with STAR detector at RHIC
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

26. Fixed target mode at RHIC-STAR
R. Vértesi, Dec/2014,
14. Zimányi Winter School
Target inserted into beam pipe
Only a small percentage
Does not interfere with collider mode data taking
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

27. J-PARC slide from H. Sako, ATHIC14, Aug/2014, Osaka
J-PARC = Japan Proton Accelerator Research Complex
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

28. Summary Beam Energy Scan 2 Yield, Flow, HBT Chiral Magnetic effect
Higher order fluctuation
A New RHIC detector
Jets
Upsilon
J-PARC Heavy Ion
GSI-FAIR CBM
NICA
Z. Xu, ICPAQGP2015
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

29. Thank you very much for your attention. Back-up slides follow.
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

30. Beam energy dependence of nquark scaled v2 (increased radial flow)
Relative momentum shift of heavier particles (protons) are larger than light hadrons (pions), which is consistent with an increased radial flow.
PRC 85, (2012)
Pb+Pb 2.76 TeV
ALICE Preliminary
proton
proton
Au + Au 39 GeV
PHENIX Preliminary
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

31. Slope : r = Dv2 / DAch arXiv:1504.02175
Phys.Rev.Lett. 114 (2015) 25,
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

32. Energy loss at high pT and re-distribution of the lost-energy at low pT at RHIC
prompt photon - hadron correlation
NPTY = associate hadron yield per trigger g
IAA = NPTY(AA) / NPTY(pp)
PRL 111 (2013)
Enhancement
in Low pT
Suppression
in high pT
Low pT
High pT
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

33. The difference is mostly gone.
Jet1
(pT,1)
Jet2
(pT,2)
R~0.2
R~0.4
in (f,h)
Aj measurement at RHIC
similar effect with smaller jet cone R~0.2 at RHIC
lower jet energy than LHC, smaller effect than LHC
mostly recovered jet energy within larger jet cone R~0.4
PT,1 - PT,2
PT,1 + PT,2
AJ =
The difference is mostly gone.
STAR, QM14
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba

34. Systematic test of energy loss and redistribution with photons, jets and hadrons
These two effects (energy loss and redistribution) can not be clearly separated experimentally!
Closer and closer to
the initial parton energy
Gamma
Jet (large R)
Jet reconstruction is to recover the lost energy to get the original parton energy.
Jet as a control tool to define path length
Jet (+hadron)
Jet (small R)
0 (hadron)
more and more surface bias
given by energy loss
QGP
inside
surface
4th Japan-Korea PHENIX Collaboration Workshop meeting, 19/Oct/2015, Seoul, Korea
S. Esumi, U. of Tsukuba