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Jet related results from RHIC 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 …. QM09, A. Majumder. Inclusive Jet cross section in p+p and in central Au+Au at RHIC. QM09, M. Ploskon.

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Jet related results from RHIC ShinIchi Esumi Inst. of Physics, Univ. of Tsukuba

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  1. 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 … ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  2. QM09, A. Majumder ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  3. Inclusive Jet cross section in p+p and in central Au+Au at RHIC QM09, M. Ploskon ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  4. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  5. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  6. Anti-kt R=0.4 ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  7. QM09, E. Bruna ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

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

  9. Head region Direct gamma-jet QM09, M. Connors ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  10. 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 ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  12. QM09, A. Hamed ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  13. RHIC 200GeV RHIC 62GeV SPS 17GeV PHENIX nucl-ex/0611019 S.Kniege, ISMD 2007 Jet suppression modification with 2-particle  correlation ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  14. p+p vs Au+Au cent 0-20% 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 ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  16. Head Shoulder In detail head: yield confirms simple picture of energy loss vs. path length; in- and out-of-plane show similar away-side widthshoulder: geometry effects harder todisentangle ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  17. ASSO-TRIG<0 -p 0 p ASSO TRIG QM09, S. Esumi near side (trigger direction) thin side 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 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. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  18. (1) (8) (2) (7) (3) (6) in-plane (4) (5) (5) (4) (6) (3) (7) (2) (8) (1) 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 c2(data) - c2(flow) (4) s=[-1,0]/8 left right left right s = Trig. R.P. [] in-plane associate regions PHENIX preliminary Asso.Trig. (rad) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  19. (1) (8) (2) (7) (3) (6) in-plane (4) (5) (5) (4) (6) (3) (7) (2) (8) (1) 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 c2(data) - c2(flow) (3) s=[-2,-1]/8 left right left right s = Trig. R.P. [] in-plane associate regions PHENIX preliminary Asso.Trig. (rad) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  20. (1) (8) (2) (7) (3) (6) in-plane (4) (5) (5) (4) (6) (3) (7) (2) (8) (1) 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 c2(data) - c2(flow) (1) s=[-4,-3]/8 left right left right s = Trig. R.P. [] in-plane associate regions PHENIX preliminary Asso.Trig. (rad) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  21. FNear FAway+ Faway Asso.Trig. (rad) 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 (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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  22. (1) (8) (2) (7) (3) (6) FNear in-plane (4) (5) FAway+ Faway (5) (4) (6) (3) Asso.Trig. (rad) (7) (2) (8) (1) (A+  A) (A+ + A) 0.5 Results on fitting parameters near side peak position left/right asymmetry 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) 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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  23. 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 ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  24. QM09, A. Majumder ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  25. 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. ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  26. (1) (8) (2) (7) (6) (3) (4) (5) (5) (4) (6) (3) (7) (2) (8) (1) AMPT (v1.11, parton cascade with string melting v2.11) Au+Au at sqrt(sNN)=200GeV Similar trend as seen in experiment trend is reversed (true) reaction plane aligned correlation function 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 ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  27. Bin 5 Near peak Mach cone 1 Bin 0 Mach cone 2 kT smearing included, modified mach-cone by absorption according to Eloss. The asymmetry is now flipped. cone1 cone2 J.Jia, R.Wei, S.E, arXiv:0903.3263 If the multiplicities reduces with the path length because of absorption... Note: original jets are generated according to Ncoll profile punch through jets included, smeared with R.P. resolution ASSO TRIG (rad) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

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

  29. 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 #2 jet shape #3 jet shape #4 jet shape #1 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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  30. 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 #2 jet shape #3 jet shape #4 jet shape #1 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 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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  31. 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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

  32. 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) ShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba

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