Recent	  results	  on	  Quark	  Gluon	  Plasma	  and	  Future	  Plans	
ShinIchi	  Esumi	  Inst.	  of	  Physics,	  Univ.	  of	  Tsukuba		  	  Contents	  QGP	  and	  heavy	  ion	  experiments	  Thermal	  and	  collec<ve	  bulk	  (so?)	  measurements	  Jet	  and	  correla<on	  (hard)	  measurements	  Interplay	  between	  hard	  and	  so?	  probes	  Future	  plans	  Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

1	Quark Gluon Plasma (QGP)	

Quark Gluon Plasma
Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

Hadrons	
ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

2	Phase-Diagram of QGP	1st	  order	  phase	  	  	  	  transi<on	  ?	

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

3	

Heavy Ion collisions
at Ultra-relativistic energy	

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

4	

Relativistic Heavy-Ion Collider (RHIC) at BNL in New YorkLarge Hadron Collider (LHC) at CERN in Geneva

RHIC	

LHC	

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

5	

ALICE	CMS	PHENIX	STAR	ATLAS	
Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

6	

PHENIX	  CMS	  ALICE	

STAR	  

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

7	Chemical and Thermal Freeze-out	single particle pT spectra,HBT measurements- Thermal freeze-out- Tfo(Th) ~ 100MeV- end of elastic interaction
among hadrons- local thermalization- Radial expansion, flow
particle yield and ratio	
- Chemical freeze-out- Tfo(Ch) ~ 170MeV- end of inelastic interaction
among hadrons- close to the expected
phase boundary

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

8	Thermal Photon Radiation and Collective Flow
- significant low pT photon excesswith much higher temperature than Tf- comparable v2 with hadrons

ellip<c	  expansion	  Phys. Rev. Lett. 104 (2010) 132301

Phys. Rev. Lett. 109 (2012) 122302

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

9	Initial Fluctuation and Higher Order Collective Flow

WMAP

4th	  order	

2nd	  order	  Ellip<c	

4th	  order	  w.r.t.	  Φ2	

3rd	  order	  Triangular		  PHENIX	  Preliminary,	  QM12	  Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

10	

Geometrical Size and Shapeat Freeze-out via Quantum Interferometry(multi-dimensional HBT) measurement
RT-side & RT-out vs (φ-Φ2) and (φ-Φ3)
RT-sideoscill. < RT-outoscill. for n=2,3 (central)

together	  with	  vn(pT)PID	  ﬁ`ng	  with	  Blast	  Wave	  pT1	  side	  view	  size	  qT-­‐side	  :	  RT-­‐side	  pT2	  depth	  +	  <me	  dura<on	  qT-­‐out	  :	  RT-­‐out	  	  PHENIX	  Preliminary,	  QM12	  Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

11	Strong B-field and Local Parity Violation in QGP
Charge Asymmetry Signal 	
Strong B-field	
L or B

Ys1＋	!1 c2

c1＋	!2X

s2

dN/dφ ~ 1+ 2vncos(n(φ-Φ))+ 2a+/-sin(φ-Φ) + …
<cos(φ1+φ2-2Φ)> ~ -<a1a2>

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

12	Energy Loss of Parton in QGP--- jet quenching --Phys. Rev. Lett. 105 (2010) 252303

jet	  p	  Au	  CMS	p	  |E1-­‐E2|	  	  	  E1+E2	  Au	  Phys. Rev. Lett. 91 (2003) 072304

di-­‐jet	  energy	  asymmetry	

Away-­‐side	  	  suppression	

|φ1-­‐φ2|	  di-­‐jet	  rela<ve	  angle	
Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

13	Phys. Rev. Lett. 111 (2013) 32301

γ-Hadron Correlation--- golden probe for jet-quenching ---γ	hadrons
Phys.	  Rev.	  Led.	   109 (2012) 152302

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

14	Ridge Structure (vn) in Small System	High-­‐temperature,	  High-­‐density	  system	  	  might	  be	  created	  even	  in	  small	  system	  	  at	  high	  mul<plicity	  event.	  	  
-­‐-­‐-­‐	  collec<ve	  expansion	  -­‐-­‐-­‐	  centrality/mul<plicity	  dependence	  Min.	  bias	  p+p	High	  mult.	  p+p	High	  mult.	  p+A	  	A+A	

Evolu<on	  of	  Near-­‐Side	  Correla<on	  Shape	

JHEP	  09	  (2010)	  091,	  	  	  Eur.	  Phys.	  J.	  C	  72	  (2012)	  2012	  	  Phys.	  Led.	  B	  718	  (2013)	  795-­‐814	
Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

CMS	15	Angular Dependence of Jet Shape--- hard-soft interplay ---	-­‐	  strong	  Φ2	  dependence	  and	  le?/right	  asymmetry	  (coupled	  with	  energy	  loss	  and	  collec<ve	  ﬂow)	  -­‐	  broader	  out-­‐of-­‐plane	  correla<on	  than	  in-­‐plane	  correla<on	  (re-­‐distribu<on	  of	  lost	  energy)	  -­‐	  some	  weak	  Φ3	  dependence	  Φ2	  Φ3	  PHENIX	  Preliminary,	  QM12	  Au+Au	  200GeV,	  hadron-­‐hadron,	  mid-­‐central	  40-­‐50%	  	  pT	  :	  (2~4)Trig	  x	  (1~2)Asso	  (GeV/c),	  vn	  subtrac<on,	  no	  Δη	  cut	  	Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	π	Δφ	  =	  φAsso	  –	  φTrig	

π	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

16	Jet Fragmentation (multi-particle correlation) and Di-jet Analysis
with respect to Bulk Geometry and/or Collectivity 	

with respect toElliptic plane Φ2 	with respect toTriangular plane Φ3 	with respect toLongitudinal angle η	--- effects on the jet (hard) probes (jet suppression, modification)--- effects on the bulk (soft) probes (re-distribution, re-heating)	

Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

17	

sPHENIX at RHIC-BNL	
(New York, USA)	

ALICE at LHC-CERN for Luminosity upgrade	(Geneva, Switzerland)	
Di-­‐jet	  calorimeter	  Forward	  calorimeter	  High-­‐speed	  read-­‐out	

FAIR at GSI(Darmstadt, Germany)	

J-PARC at JAEA/KEK
for heavy-ion collisions(Tokai, Japan)	
Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

18		  	  

	  Summary	  QGP	  and	  heavy	  ion	  experiments	  Thermal	  and	  collec<ve	  bulk	  (so?)	  measurements	  Jet	  and	  correla<on	  (hard)	  measurements	  Interplay	  between	  hard	  and	  so?	  probes	  Future	  plans	  Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

19	Ridge Structure (vn)in d+Au at RHIC

arXiv :1303.1794	

Backward-­‐Central	  	  	  	  or	  	  	  	  Forward-­‐Central	  	  Two-­‐par<cle	  correla<ons	  Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	

ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

20	Forward-Backward
Asymmetry in Δη Shapewith respect to Trigger η	ηTrigger	
-1.5	

1.5	

AMPT	  mid-­‐central	  bimp	  =	  4	  -­‐	  10	  fm	1/NTrig	  dNAsso	  /	  dΔη	

(associate yield per trigger
with AMPT simulation)	

Forward-­‐backward	  asymmetry	  is	  visible	  in	  AMPT	  simula<on.	  
Near	  side	  Δη	  peak	  is	  backward	  shi?ed	  w.r.t.	  
trigger	  η direc<on.	

0.0	

AMPT	  Peripheral	  bimp	  =	  10	  -­‐	  fm	ηTrig	  ~	  -­‐1	
|Δφ| <	  π/4 near side|Δφ| >	  π/4 away sidebeam	-­‐4	  	  -­‐2	  	  	  0	  	  	  2	  	  	  4	Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	Δη	  =	  ηAsso	  -­‐	  ηTrig	
ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

21	Use	  photons,	  Jets,	  single	  hadrons	  	  as	  trigger	  in	  order	  to	  look	  at	  	  	  correlated	  associa<on	  	  emission	

Mul<-­‐par<cle	  correla<on	  like	  2+1	  par<cle	  	  correla<on	  analysis	  (Trig1,	  Trig2,	  Asso)	  can	  be	  	  used	  as	  largely	  modiﬁed	  jet	  and	  di-­‐jet	  signal.	  	  Trig1	

Trig1	

Asso	

Asso	
Trig2	
Trig1	

Trig2	
Trig2	

Asso	

Use	  “Trig2	  rela<ve	  to	  Trig1”	  as	  jet	  trigger	  condi<on,	  	  and	  look	  at	  distribu<on	  :	  	  “Associate	  rela<ve	  to	  Trig1”	  without	  jet-­‐reconstruc<on	  bias	  To	  be	  used	  for	  Φn	  and	  ηTrig	  dependent	  analysis	  	  	Beihang-­‐Tsukuba	  Collabora<on	  Mee<ng,	  10-­‐11/Nov/2013,	  Tsukuba	ShinIchi	  Esumi,	  Univ.	  of	  Tsukuba	

22