PowerPoint プレゼンテーション
Download
Report
Transcript PowerPoint プレゼンテーション
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
1
QM09, A. Majumder
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
2
Inclusive Jet cross section in p+p
and in central Au+Au at RHIC
Heavy Ion Cafe, 09/May/2009, Tokyo
QM09, M. Ploskon
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
3
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
4
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
5
Anti-kt R=0.4
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
6
QM09, E. Bruna
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
7
large uncertainties due to background
(further systematic evaluation needed)
20<pt,rec(AuAu)<25 GeV
⇒ < pt,rec(pp)> ~ 18 GeV
STAR Preliminary
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
8
Direct gamma-jet
QM09, M. Connors
Ydirect
Heavy Ion Cafe, 09/May/2009, Tokyo
RYincl Ydecay
R 1
Head
region
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
9
pThadron
z T trigger
pT
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
10
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
11
QM09, A. Hamed
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
12
Jet suppression modification
with 2-particle correlation
RHIC 200GeV
RHIC 62GeV
SPS 17GeV
PHENIX
nucl-ex/0611019
S.Kniege, ISMD 2007
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
13
p+p vs Au+Au cent 0-20%
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
14
RP dependent correlations
QM09, W. G. Holzmann
Measure in 18 |trig - 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
15
In detail
Head
Shoulder
head: yield confirms simple picture of
energy loss vs. path length; in- and outof-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
16
QM09, S. Esumi
ASSO-TRIG<0
Trigger angle selected with
respect to the 2nd moment
event plane [p/2,p/2] to probe
the participant geometry
mach-cone
(shoulder region)
ASSO-TRIG<0
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
p
0
ASSO TRIG
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
p
17
Angle (4)/(5) (mid-central)
200GeV Au+Au -> h-h (run7)
c2(data) - c2(flow)
left/right asymmetry
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(5) s=[0,1]p/8
(4) s=[-1,0]p/8
(1)
right
left
(8)
(2)
(7)
(3)
(6)
(4)
(5)
(5)
(4)
(6)
left
in-plane
(3)
(7)
(2)
(8)
(1)
right
s = Trig. R.P.
[p/p/]
PHENIX preliminary
in-plane
associate
regions
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
18
Angle (3)/(6) (mid-central)
200GeV Au+Au -> h-h (run7)
c2(data) - c2(flow)
left/right asymmetry
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(6) s=[1,2]p/8
(3) s=[-2,-1]p/8
(1)
right
left
(8)
(2)
(7)
(3)
(6)
(4)
(5)
(5)
(4)
(6)
left
in-plane
(3)
(7)
(2)
(8)
(1)
right
s = Trig. R.P.
[p/p/]
PHENIX preliminary
in-plane
associate
regions
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
19
Angle (1)/(8) (mid-central)
200GeV Au+Au -> h-h (run7)
c2(data) - c2(flow)
left/right asymmetry
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(8) s=[3,4]p/8
(1) s=[-4,-3]p/8
(1)
right
left
(8)
(2)
(7)
(3)
(6)
(4)
(5)
(5)
(4)
(6)
left
in-plane
(3)
(7)
(2)
(8)
(1)
right
s = Trig. R.P.
[p/p/]
PHENIX preliminary
in-plane
associate
regions
Asso. Trig. (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
20
(4) s=[-1,0]p/8
(5) s=[0,1]p/8
200GeV Au+Au -> h-h (run7)
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
c2(data) - c2(flow)
in-plane
trigger selection
(3) s=[-2,-1]p/8
(6) s=[1,2]p/8
FNear
FAway+ Faway
Asso. Trig. (rad)
(2) s=[-3,-2]p/8
(7) s=[2,3]p/8
Fitting with 3 Gaussian functions
Gauss function : F(height, mean, width)
FNear(A0, D0, S0) + FAway+(A+ , D+ , S+)
+ FAway(A, D, S)
| pD+ | = | Dp| ,
S+= S
(1) s=[-4,-3]p/8
(8) s=[3,4]p/8
out-of-plane
trigger selection
average
Fitted data with
3 Gauss func.
PHENIX preliminary
Heavy Ion Cafe, 09/May/2009, Tokyo
Trig.
Asso. Inst.
ShinIchi
Esumi,
of(rad)
Physics, Univ. of Tsukuba
21
Results on fitting parameters
(1)
near side peak position
left/right asymmetry
D0 (rad)
FAway+ Faway
Asso. Trig. (rad)
Fitting with 3 Gaussian functions
20 ~ 50 %
Gauss function : F(height, mean, width)
FNear(A0, D0, S0) + FAway+(A+ , D+ , S+)
+ FAway(A, D, S)
| pD+ | = | Dp| ,
S+= S
0.5
+ve away
enhanced
Heavy Ion Cafe, 09/May/2009, Tokyo
(6)
(4)
(5)
(5)
(4)
(6)
in-plane
(3)
(7)
(2)
(8)
(1)
s = Trig. R.P.
[p/p/]
away side shoulder
peak position
| D+/ p| (rad)
away side shoulder height
left/right asymmetry
(A+ A)
(A+ + A)
consistent
with the
speculation
(7)
(3)
FNear
-ve near
shifted
(8)
(2)
200GeV Au+Au (run7)
hadron-hadron
(pTTrig=2~4GeV/c,
pTAsso=1~2GeV/c)
PHENIX
preliminary
s = Trig. R.P. (rad)
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
22
Summary Data for
Left/right asymmetry
(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
peripheral : 50-93%
c2(data) - c2(flow)
central : 0-20%
200GeV Au+Au -> h-h (run7)
in-plane
(5) : s=[0,1]p/8
middle
(6) : s=[1,2]p/8
out-of-plane (8) : s=[3,4]p/8
Heavy Ion Cafe, 09/May/2009, Tokyo
PHENIX preliminary
Asso. Trig. (rad)
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
23
QM09, A. Majumder
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
24
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
25
AMPT (v1.11, parton cascade with string melting v2.11) Au+Au at sqrt(sNN)=200GeV
(1)
(8)
(true) reaction plane aligned correlation function
(2)
(7)
(6)
(3)
(4)
(5)
(5)
(4)
(6)
Similar trend as
seen in experiment
(3)
(7)
(2)
(8)
(1)
trend is reversed
4~18%
b = 3.5~7 (fm)
perfect R.P. resolution
no v2 subtraction needed
Heavy Ion Cafe, 09/May/2009, Tokyo
44~%
b = 10.5~ (fm)
Asso. Trig. (rad) with trigger angle selected w.r.t. R.P.
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
26
Bin 5
J.Jia, R.Wei, S.E, arXiv:0903.3263
If the multiplicities
reduces with the path
length because of
absorption...
Bin 0
Note: original jets are
generated according
to Ncoll profile
Mach cone 2
kT smearing included,
modified mach-cone by
absorption according to
Eloss. The asymmetry is
now flipped.
punch through jets included,
smeared with R.P. resolution
cone1
cone2
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
27
Simulation
4 different jet shape assumptions for MC input
jet shape #1
jet shape #2
near- and awayside dependence
only away-side
dependence
jet shape #3
only near-side
dependence
jet shape #4
no R.P.
dependence
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
28
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 #2
jet shape #1
Comparison with data would tell
us that there should be nearand away-side modification in
experimental data.
jet shape #3
Simulation
jet shape #4
There should also be a strong effect on v2 , much stronger effect on v4.
v2(high)=0.20 ---> 0.20
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.15
v4(low)=0.010 ---> 0.016
v2(high)=0.20 ---> 0.20
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.14
v4(low)=0.010 ---> 0.014
v2(high)=0.20 ---> 0.20
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.13
v4(low)=0.010 ---> 0.012
v2(high)=0.20 ---> 0.20
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.12
v4(low)=0.010 ---> 0.009
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
29
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
nTrig / eve (soft) = 3
nAsso / eve (soft) = 8
nJet / eve (hard) = 1
nPTY / jet (hard) = 1.25
jet shape #1
jet shape #2
jet shape #3
v2(high)=0.20 ---> 0.15
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.14
v4(low)=0.010 ---> 0.015
v2(high)=0.20 ---> 0.15
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.13
v4(low)=0.010 ---> 0.014
v2(high)=0.20 ---> 0.15
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.12
v4(low)=0.010 ---> 0.011
Simulation
jet shape #4
v2(high)=0.20 ---> 0.15
v4(high)=0.029 ---> 0.022
v2(low)=0.13 ---> 0.11
v4(low)=0.010 ---> 0.009
ASSO TRIG (rad)
Heavy Ion Cafe, 09/May/2009, Tokyo
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
30
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.
in-plane
(5)
(6)
average
(8)
out-of-plane
(7)
PHENIX preliminary
Heavy Ion Cafe, 09/May/2009, Tokyo
Asso. Trig. (rad)
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
31
200GeV Au+Au -> h-h (run7)(pTTrig=2~4GeV/c, pTAsso=1~2GeV/c)
mid-central : 20-50%
(5)
(4)
(6)
(3)
(7)
(2)
(8)
(1)
peripheral : 50-93%
average
out-of-plane
in-plane
central : 0-20%
PHENIX preliminary
Heavy Ion Cafe, 09/May/2009, Tokyo
Asso. Trig. (rad)
ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba
32