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Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba1 Jet correlation and modification at RHIC --- 2 and 3 particle correlation.

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Presentation on theme: "Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba1 Jet correlation and modification at RHIC --- 2 and 3 particle correlation."— Presentation transcript:

1 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba1 Jet correlation and modification at RHIC --- 2 and 3 particle correlation --- ShinIchi Esumi Inst. of Physics, Univ. of Tsukuba

2 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba2 x z Non-central Collisions Elliptic and Directed Flow jet suppression/geometry jet pp Au jet suppression and modification Angular dependence of jet suppression and modification

3 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba3 STAR : PRL 97, 152301 (2006) STAR preliminary phenix: nucl-ex/0703024 R AA

4 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba4 PHENIX preliminary annihilation compton scattering Bremsstrahlung (energy loss) prompt photon v 2 = 0 v 2 < 0 thermal photon v 2 > 0 Jet-frag. photon from the survived parton v 2 > 0 direct photon as a probe of bulk matter QM06

5 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba5 Inclusive  -h Decay  -h contribution (via  0 - hadron) Direct  -h ! p+p collisions at 200 GeV PHENIX Preliminary Reasonable agreement between data and Pythia Pythia 6.1, k T = 2.5 GeV Black: Au+Au Red: p+p

6 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba6

7 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba7 pedestal and flow subtracted 4 < p T,trig < 6 GeV/c, 2< p T,assoc < p T,trig 0-5% STAR, PRL 90 (2003) 082302

8 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba8 STAR, Phys. Rev. Lett. 97 (2006) 162301 8 < pT,trig< 15 GeV/c

9 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba9 PHENIX preliminary Phys. Rev. Lett. 97, 052301 (2006) Leading hadrons Medium

10 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba10 Fit away-side peak with double Gaussian, each centered at  =  ± D PHENIX nucl-ex/0611019

11 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba11 Au+Au / p+p  s = 200 GeV arXiv:0705.3238 [nucl-ex] Per-trigger yield vs.  for various trigger and partner p T (p A T  p B T )  Establish the punch-through jet component (“Head Region”)  and the medium-induced component (“Shoulder Region”) HR+SR (|  |<=  /2) and HR (|  -  |<=  /6).

12 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba12 Au+Au / p+p  s = 200 GeV arXiv:0705.3238 [nucl-ex]

13 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba13

14 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba14

15 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba15 PHENIX Preliminary central peripheral

16 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba16 |η trig |<1 3<p T trig <10 GeV/c 2.7<|η assoc |<3.9 0.2<p T assoc < 2 GeV/c

17 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba17 Trigger: MTPC: 3<p T trig <4 GeV/c, Associated: FTPC: 0.2<p T assoc < 2 GeV/c, MTPC: 0.2<p T assoc < 3 GeV/c pp MB dAu MB AuAu 60-80% AuAu 0-10% AuAu 0-5%

18 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba18 d+Au, 40-100%Au+Au, 0-5% 3 < p T (trig) < 6 GeV 2 < p T (assoc) < p T (trig) Study near-side yields Study away-side correlated yields and shapes Components  near-side jet peak  near-side ridge  v2 modulated background Au+Au 0-10% preliminary

19 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba19 Jet + RidgeJet nucl-ex/0611016 (PHENIX) Jet + Ridge

20 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba20 Jet spectra Yield (p t,assoc > p t,assoc,cut ) Ridge spectra Yield (p t,assoc > p t,assoc,cut ) p t,assoc,cut inclusive STAR preliminary

21 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba21 z T = p T,assoc /p T,trig STAR preliminary Jet+Ridge in Au+Au Jet in d+Au “Jet” in Au+Au STAR, M. Horner, QM06 Jet in d+Au Jet+Ridge “Jet”

22 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba22  13  12 0    13  12 0   Event by event deflection of jets Cone like structure in each event

23 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba23 Δ  12 Δ   2-Part Correlation Flow background Jetty signal Jet  Background Hard-Soft Term Trigger  2-Background Soft-Soft term Trigger  Background Flow Term v 2 (1) v 2 (2)  v 2 2 v 4 (1)v 4 (2) + v 2 (1)v 2 (2)v 2 (3)  v 2 4 v 4 =1.15v 2 2

24 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba24 (  12 -  13 )/2 (  12 +  13 )/2  12  13 Deflected Jet + Cone Cone Near Side Elongated Away Side Jet

25 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba25 Jet - Flow Subtraction - System Size Dependence (  12 +  13 )/2 (  12 -  13 )/2 Δ  12 Δ   pp d+Au Au+Au 50-80%

26 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba26 Jet - Flow Subtraction - System Size Dependence Δ   Δ  12 (  12 +  13 )/2 (  12 -  13 )/2 Au+Au 30-50% Au+Au 10-30% Au+Au 0-10%

27 27 along azimuth Polar plot 3 Particle Correlations in High pT Framework (*) Normal Jet Same Side Away Side Assoc. pTs (2,3) *  12 *  = along radius *  12 *  13 *  _ = Hi pT(1)

28 28 Deflected jet sim Data shows strong away side modification Mach Cone sim High pT(1) Normal jet sim Same Side Away Side High pT(1) 3Particle Correlations in High pT Framework

29 29 Simulated Deflected jet Simulated Mach Cone The data validates the presence of a Mach Cone but does not rule out contributions from other topologies. Azimuthal variation along ridge Data

30 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba30 Results: flow contribution and conditional yield Raw Correlation Conditional yield CERN-SPS, CERES/NA45 flow contribution (stat. unceratinties in v 2 ) Hard probes ref Trigger p t : (2.5-4.0) GeV/c Associate p t : (1.0-2.5) GeV/c

31 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba31 0-5% 10-20% √s=62.4 GeV at RHIC nucl-ex/0611019 2.5 < p T, trig < 4.0 GeV/c 1.0 < p T, assoc < 2.5 GeV/c √s=19 GeV at SPS nucl-ex/0611019 √s=200 GeV at RHIC

32 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba32 3 Particle correlations : two particle contributions - (..+..+.. ) = yieldraw correlations

33 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba33 STAR preliminary 0-12% 200 GeV Au+Au PHENIX nucl-ex/0611019 PHENIX Preliminary 10-20% Au+Au 200GeV p T trig =2.5-4 GeV/c p T assoc =1-2.5 GeV/c STAR preliminary 0-12% Au+Au 200GeV p T trig =3-4 GeV/c p T assoc =1-2 GeV/c CERES preliminary 0-5% Pb +Au 17GeV p T trig =2.5-4 GeV/c p T assoc =1-2.5 GeV/c CERES preliminary 0-5% Pb +Au 17GeV p T trig =2.5-4 GeV/c p T assoc =1-2.5 GeV/c jet modification and cone like structure The bulk and jet interaction is there, but in Cu+Cu/Au+Au and SPS-RHIC?!?

34 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba34 Is there a ridge on the away-side (di-hadron trigger) ? T1 near-side trigger > 6 (8) GeV T2 “away-side trigger” > 4 (6) GeV (and < near-side trigger) within 180 deg. +- 30 deg. A assoc. particles > 2 GeV disappearing bkg. 8<p t,trigger <15 GeV Use “away-side trigger” for 2-particle  correlations

35 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba35  projection Di-jets in Au+Au  projection T1A & T2 T2A T1A & T2 T2A STAR preliminary T1: p T >5GeV/c T2: p T >4GeV/c A : p T >1.5GeV/c STAR, R. Hollis, Berkeley School (07)

36 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba36 AMPT 200GeV Au+Au → charged hadrons (|y|<2.0) string-melting 10mb string-melting 3mb default AMPT 3mb b = 12 fm ~b = 8~12 fmb = 4~8 fmb = 0~4 fm 1/N trig. dN asso. /d|  trig. -  asso. | |  trig. -  asso. | (rad) p T asso. : 0.7-1.7GeV/c p T trig. : 1.7-4GeV/c

37 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba37 AMPT 200GeV Au+Au → charged hadrons (|y|<2.0) p T asso. : 0.7-1.7GeV/c p T trig. : 1.7-4GeV/c trigger at in-plane average trigger at out-of-plane b = 12 fm ~b = 8~12 fmb = 4~8 fmb = 0~4 fm |  trig. -  asso. | (rad) 1/N trig. dN asso. /d|  trig. -  asso. |

38 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba38 AMPT 200GeV Au+Au default option (solid symbols) melting-on (open symbols) central peripheral total multiplicity peripheral central default melting-on pT (GeV/c) charged particle v2 (|  |<1) black symbols : true v2 w.r.t. true r.p. red symbols : measured v2 w.r.t. calculated r.p. at |h|=1.7~4 blue symbols : corrected v2 with estimated r.p. resolution r.p. resolution sub-event correlation true resolution estimated r.p. resolution melting-on default

39 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba39 (1) (2) (3) (4) (2) (3) (4) (1) Trigger particle x(R.P.) yy     (2) Trigger particle  ASSO.  TRIG.  R.P. : rxn S+N p T TRIG. : 1.5-4.0 GeV/c p T ASSO. : 0.5-1.5 GeV/c associate particle direction at same |  | w.r.t. trigger particle but with different arrow length associate particle direction at same |  | w.r.t. red dashed line but with different arrow length

40 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba40 AMPT 200GeV Au+Au default option melting-on 0~9% 9~19% 19~39% 39~100% (1)(2) (3) (4)(all) (1)(2) (3) (4)(all) 0~9% 9~19% 19~39% 39~100%

41 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba41 SMD/ZDC BBC/MPC participant elliptic R.P. spectator directed R.P. MVD/RXN PHENIX improved R.P. resolution

42 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba42 RXN(S) - RXN(N) MPC(S) - MPC(N) BBC(S) - BBC(N) RXN(SN) - MPC(SN) RXN(SN) - BBC(SN) BBC+MPC+RXN (S - N) BBC+MPC (S - N) (2000 - BBC charged multiplicity)/100 : [centrality bin] v 2 and v 4 resolution

43 Heavy-Ion Cafe, 30/Jun/2007, TokyoShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba43 Summary jet quenching, v 2 jet suppression and re-appearance jet modification at low-mid pT head-shoulder region near-side ridge cone / deflection system size, centrality dependence rapidity, energy dependence h-h,  -h correlation 2 and 3 particles 2+1 correlation r.p. angle dependence

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