1. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Jet related results from RHIC
ShinIchi Esumi
Inst. of Physics, Univ. of Tsukuba
Jets, di-Jet results
Gamma-Jet results
Mach-cone, Ridge results
… mostly shown at QM09 …
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

2. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
QM09, A. Majumder
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

3. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Inclusive Jet cross section in p+p
and in central Au+Au at RHIC
QM09, M. Ploskon
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

4. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

5. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

6. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Anti-kt R=0.4
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

7. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
QM09, E. Bruna
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

8. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
STAR Preliminary
large uncertainties due to background (further systematic evaluation needed)
20<pt,rec(AuAu)<25 GeV
⇒ < pt,rec(pp)> ~ 18 GeV
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

9. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Direct gamma-jet
QM09, M. Connors
Head region
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

10. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

11. Fragmentation function in p+p and Au+Au
p+p slope:
6.89  0.64
Au+Au slope:
9.49  1.37
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

12. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
QM09, A. Hamed
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

13. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Jet suppression modification with 2-particle  correlation
RHIC 200GeV
SPS 17GeV
RHIC 62GeV
PHENIX
nucl-ex/
S.Kniege, ISMD 2007
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

14. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
p+p vs Au+Au cent 0-20%
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

15. RP dependent correlations
QM09, W. G. Holzmann
Measure in 18 |ftrig - y| angle bins of 5 degrees
folded into 0-90 degrees
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

16. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
In detail
Head
Shoulder
head: yield confirms simple picture of energy loss vs. path length; in- and out-of-plane show similar away-side width shoulder: geometry effects harder to　disentangle
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

17. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
QM09, S. Esumi
(trigger direction)
near side
thin side
ASSO-TRIG<0
mach-cone
(shoulder region)
ASSO-TRIG>0
Trigger angle selected with respect to the 2nd moment event plane [-p/2,p/2] to probe the participant geometry
away side
(head region)
mach-cone
(shoulder region)
ASSO-TRIG<0
ASSO  TRIG
-p 0 p
thick side
If trigger angle is fixed around +/-(p/4), the associate particles emitted left or right w.r.t. trigger direction would feel the different thickness of the almond. It is because the almond shaped medium is asymmetric w.r.t. jet axis.
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

18. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Angle (4)/(5) (mid-central)
left/right asymmetry
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(5) s=[0,1]/8
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
in-plane
c2(data) - c2(flow)
(4) s=[-1,0]/8
right
left
left
right
s = Trig. R.P.
[]
in-plane
associate
regions
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

19. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Angle (3)/(6) (mid-central)
left/right asymmetry
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(6) s=[1,2]/8
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
in-plane
c2(data) - c2(flow)
(3) s=[-2,-1]/8
right
left
left
right
s = Trig. R.P.
[]
in-plane
associate
regions
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

20. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Angle (1)/(8) (mid-central)
left/right asymmetry
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(8) s=[3,4]/8
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
in-plane
c2(data) - c2(flow)
(1) s=[-4,-3]/8
right
left
left
right
s = Trig. R.P.
[]
in-plane
associate
regions
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

21. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(4) s=[-1,0]/8
(5) s=[0,1]/8
in-plane
trigger selection
FNear
FAway+
Faway
Asso. Trig. (rad)
(3) s=[-2,-1]/8
(6) s=[1,2]/8
c2(data) - c2(flow)
(2) s=[-3,-2]/8
Fitting with 3 Gaussian functions
Gauss function : F(height, mean, width)
FNear(A0, D0, S0) + FAway+(A+ , D+ , S+)
+ FAway(A, D, S)
| D+ | = | D| , S+= S
(7) s=[2,3]/8
(1) s=[-4,-3]/8
(8) s=[3,4]/8
out-of-plane
trigger selection
Fitted data with
3 Gauss func.
average
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

22. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Results on fitting parameters
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
in-plane
near side peak position
left/right asymmetry
FNear
FAway+
Faway
Asso. Trig. (rad)
D0 (rad)
Fitting with 3 Gaussian functions
Gauss function : F(height, mean, width)
FNear(A0, D0, S0) + FAway+(A+ , D+ , S+)
+ FAway(A, D, S)
| D+ | = | D| , S+= S
20 ~ 50 %
s = Trig. R.P.
[]
-ve Df near
shifted
consistent with the
speculation
away side shoulder height
left/right asymmetry
away side shoulder
peak position
| D+/- | (rad)
(A+  A)
(A+ + A)
0.5
200GeV Au+Au (run7)
hadron-hadron
(pTTrig=2~4GeV/c,
pTAsso=1~2GeV/c)
+ve Df away
enhanced
PHENIX
preliminary
s = Trig. R.P. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

23. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Summary Data for
Left/right asymmetry
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
central : 0-20%
mid-central : 20-50%
peripheral : 50-93%
c2(data) - c2(flow)
in-plane (5) : s=[0,1]/8
middle (6) : s=[1,2]/8
out-of-plane (8) : s=[3,4]/8
Asso. Trig. (rad)
PHENIX preliminary
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

24. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
QM09, A. Majumder
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

25. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Summary
QGP tomography has started
using Jets and di-Jets, Gamma-Jets,
Mach-cone, Ridge, and …
We will continue in RHIC-PHENIX,
and prepare for LHC-ALICE with
additional J-cal opposite side of EMcal.
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

26. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
AMPT (v1.11, parton cascade with string melting v2.11) Au+Au at sqrt(sNN)=200GeV
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Similar trend as seen in experiment
(true) reaction plane aligned correlation function
trend is reversed
4~18%
b = 3.5~7 (fm)
44~%
b = 10.5~ (fm)
Asso. Trig. (rad) with trigger angle selected w.r.t. R.P.
perfect R.P. resolution
no v2 subtraction needed
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

27. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Near peak
Mach cone 2
Mach cone 1
Bin 0
Bin 5
J.Jia, R.Wei, S.E, arXiv:
If the multiplicities reduces with the path length because of absorption...
Note: original jets are generated according to Ncoll profile
kT smearing included, modified mach-cone by absorption according to Eloss. The asymmetry is now flipped.
cone cone2
punch through jets included,
smeared with R.P. resolution
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

28. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Simulation
4 different jet shape assumptions for MC input
jet shape #1
jet shape #2
jet shape #3
jet shape #4
near- and away-
side dependence
only away-side
dependence
only near-side
dependence
no R.P.
dependence
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

29. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Simulation
Comparison with data would tell us that there should be near- and away-side modification in experimental data.
nTrig / eve (soft) = 3
nAsso / eve (soft) = 8
nJet / eve (hard) = 1
nPTY / jet (hard) = 1.25
v2,4Trig (soft) = 0.2, 0.029
v2,4Asso (soft) = 0.13, 0.010
v2,4Jet (hard) = 0.2, 0.0
v2,4PTY (hard) = 0.15, 0.0
jet shape #1
jet shape #2
jet shape #3
jet shape #4
There should also be a strong effect on v2 , much stronger effect on v4.
v2(high)= > 0.20
v4(high)= > 0.022
v2(low)= > 0.15
v4(low)= > 0.016
v2(high)= > 0.20
v4(high)= > 0.022
v2(low)= > 0.14
v4(low)= > 0.014
v2(high)= > 0.20
v4(high)= > 0.022
v2(low)= > 0.13
v4(low)= > 0.012
v2(high)= > 0.20
v4(high)= > 0.022
v2(low)= > 0.12
v4(low)= > 0.009
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

30. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
Simulation
nTrig / eve (soft) = 3
nAsso / eve (soft) = 8
nJet / eve (hard) = 1
nPTY / jet (hard) = 1.25
v2,4Trig (soft) = 0.2, 0.029
v2,4Asso (soft) = 0.13, 0.010
v2,4Jet (hard) = 0.0, 0.0
v2,4PTY (hard) = 0.0, 0.0
jet shape #1
jet shape #2
jet shape #3
jet shape #4
v2(high)= > 0.15
v4(high)= > 0.022
v2(low)= > 0.14
v4(low)= > 0.015
v2(high)= > 0.15
v4(high)= > 0.022
v2(low)= > 0.13
v4(low)= > 0.014
v2(high)= > 0.15
v4(high)= > 0.022
v2(low)= > 0.12
v4(low)= > 0.011
v2(high)= > 0.15
v4(high)= > 0.022
v2(low)= > 0.11
v4(low)= > 0.009
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

31. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
200GeV Au+Au -> h-h (run7)(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
central : 0-20%
mid-central : 20-50%
peripheral : 50-93%
blue data points are  flipped.
(5)
(6)
(7)
average out-of-plane in-plane
(8)
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

32. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
200GeV Au+Au -> h-h (run7)(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
central : 0-20%
mid-central : 20-50%
peripheral : 50-93%
(5)
(4)
(6)
(3)
(7)
(2)
average out-of-plane in-plane
(8)
(1)
PHENIX preliminary
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba