1. 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 collective bulk (soft) measurements
Jet and correlation (hard) measurements
Interplay between hard and soft probes
Future plans
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

2. Quark Gluon Plasma (QGP)
Hadrons
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

3. ShinIchi Esumi, Univ. of Tsukuba
Phase-Diagram of QGP
1st order phase
transition ?
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

4. at Ultra-relativistic energy
Heavy Ion collisions
at Ultra-relativistic energy
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

5. Relativistic Heavy-Ion Collider (RHIC) at BNL in New York
Large Hadron Collider (LHC) at CERN in Geneva
RHIC
LHC
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

6. ShinIchi Esumi, Univ. of Tsukuba
ALICE
CMS
PHENIX
STAR
ATLAS
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

7. ShinIchi Esumi, Univ. of Tsukuba
PHENIX
CMS
ALICE
STAR
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba 7

8. ShinIchi Esumi, Univ. of Tsukuba
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
- close to the expected
phase boundary
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

9. Thermal Photon Radiation and Collective Flow
- significant low pT photon excess
with much higher temperature than Tf
- comparable v2 with hadrons
elliptic expansion
Phys. Rev. Lett. 104 (2010)
Phys. Rev. Lett. 109 (2012)
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

10. Initial Fluctuation and Higher Order Collective Flow
WMAP
4th order
w.r.t. F2
4th order
2nd order
Elliptic
3rd order
Triangular
PHENIX Preliminary, QM12
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

11. Geometrical Size and Shape at Freeze-out via Quantum Interferometry
(multi-dimensional HBT) measurement
side view size
qT-side : RT-side
pT1
pT2
RT-side & RT-out vs () and () RT-sideoscill. < RT-outoscill. for n=2,3 (central)
depth + time duration
qT-out : RT-out
PHENIX Preliminary, QM12
together with vn(pT)PID
fitting with Blast Wave
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

12. ＋ ＋ Strong B-field and Local Parity Violation in QGP
Charge Asymmetry Signal
Strong B-field X Y
L or B ＋ ＋
dN/d ~ 1+ 2vncos(n(-))
+ 2asin(-) + …
<cos(1+2-2)> ~ -<a1a2>
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

13. Energy Loss of Parton in QGP --- jet quenching ---Au
Phys. Rev. Lett. 105 (2010)
CMS
re-distribution of
the lost energy
|E1-E2|
E1+E2
Phys. Rev. Lett. 91 (2003)
di-jet energy asymmetry
Away-side
suppression
|f1-f2|
di-jet relative angle
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

14. -Hadron Correlation g hadrons --- golden probe for jet-quenching ---
Phys. Rev. Lett. 111 (2013) 32301
-Hadron Correlation
--- golden probe for jet-quenching --- g
hadrons
Phys. Rev. Lett (2012)
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

15. Ridge Structure (vn) in Small System
High-temperature, High-density system might be created even in small system at high multiplicity event.
--- collective expansion
--- centrality/multiplicity dependence
Min. bias p+p
High mult. p+p
High mult. p+A
A+A
Evolution of Near-Side Correlation Shape
CMS
JHEP 09 (2010) 091, Eur. Phys. J. C 72 (2012) 2012
Phys. Lett. B 718 (2013)
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

16. Angular Dependence of Jet Shape --- hard-soft interplay ---
- strong 2 dependence and left/right asymmetry (coupled with energy loss and collective flow) - broader out-of-plane correlation than in-plane correlation (re-distribution of lost energy)
- some weak 3 dependence 2 3
PHENIX Preliminary, QM12
Au+Au 200GeV, hadron-hadron, mid-central 40-50%
pT : (2~4)Trig x (1~2)Asso (GeV/c), vn subtraction, no Dh cut p p
Df = fAsso – fTrig
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

17. Jet Fragmentation (multi-particle correlation) and Di-jet Analysis
with respect to Bulk Geometry and/or Collectivity
with respect to
Elliptic plane F2
with respect to
Triangular plane F3
with respect to
Longitudinal angle h
--- effects on the jet (hard) probes (jet suppression, modification)
--- effects on the bulk (soft) probes (re-distribution, re-heating)
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

18. ShinIchi Esumi, Univ. of Tsukuba
ALICE at LHC-CERN for Luminosity upgrade
(Geneva, Switzerland)
sPHENIX at RHIC-BNL
(New York, USA)
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 Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

19. ShinIchi Esumi, Univ. of Tsukuba
Summary
QGP and heavy ion experiments
Thermal and collective bulk (soft) measurements
Jet and correlation (hard) measurements
Interplay between hard and soft probes
Future plans
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

20. Ridge Structure (vn) in d+Au at RHIC
arXiv :
Backward-Central or Forward-Central
Two-particle correlations
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

21. Forward-Backward Asymmetry in Dh Shape with respect to Trigger h
(associate yield per trigger
with AMPT simulation)
hTrigger
-1.5
0.0
1.5
AMPT mid-central bimp = fm
Forward-backward
asymmetry is visible
in AMPT simulation.
Near side Dh peak is backward shifted w.r.t. trigger h direction.
1/NTrig dNAsso / dDh
AMPT Peripheral bimp = 10 - fm
hTrig ~ -1
beam
|Df| < p/4 near side
|Df| > p/4 away side
Dh = hAsso - hTrig
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba

22. ShinIchi Esumi, Univ. of Tsukuba
Use photons, Jets, single hadrons
as trigger in order to look at
correlated association emission
Multi-particle correlation like 2+1 particle
correlation analysis (Trig1, Trig2, Asso) can be
used as largely modified jet and di-jet signal.
Trig1
Trig1
0(hadron) trigger
Jet (small R) trigger
Jet (large R) trigger
Gamma trigger
Closer and closer to
the initial parton energy
more and more surface bias
given by energy loss
Asso
Asso
Trig2
Trig1
Trig2
Asso
Trig2
Use “Trig2 relative to Trig1”
as jet trigger condition,
and look at distribution : “Associate relative to Trig1”
without jet-reconstruction bias
To be used for Fn and hTrig dependent analysis
Beihang-Tsukuba Collaboration Meeting, 10-11/Nov/2013, Tsukuba
ShinIchi Esumi, Univ. of Tsukuba