p+p jet+jet

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Presentation transcript:

p+p jet+jet (STAR@RHIC) Au+Au ??? (STAR@RHIC) p+p jet+jet (STAR@RHIC) nucleon parton jet

Back-to-back jet suppression --- 2 particle  correlation --- Jet modification --- at pT = 1~4 GeV/c --- jet p Au Back-to-back jet suppression --- 2 particle  correlation --- Leading hadrons Medium jet p

Reconstructed Jet Results at RHIC STAR preliminary (QM09)

Jet - hadron correlation High Tower Trigger (HT) : (x)=(0.05x0.05) ET>5.4GeV RHIC-AGS’09, J. Putschke

with 7TeV p+p at LHC-ALICE (reference for LHC A+A data) ,Jet,0 - hadron correlation Comparisons are the most important! Closer and closer to the initial parton energy Gamma trigger Jet (large R) trigger Jet/multi-particle correlation analysis with 7TeV p+p at LHC-ALICE (reference for LHC A+A data) (high-multiplicity p+p events) or with 200GeV Au+Au at RHIC-PHENIX Jet (small R) trigger 0(hadron) trigger more and more surface bias given by energy loss

elliptic azimuthal event anisotropy Anisotropic flow x z y Reaction Plane (R.P.) x z sideward flow (v1) x y elliptic flow (v2) initial geometry final momentum anisotropy elliptic azimuthal event anisotropy low pT high pT fparticle-FR.P. (rad) -p 0 p dN/df

Partonic collectivity --- particle identified v2 --- Phys. Rev. Lett. 99, 052301 (2007) Partonic collectivity --- particle identified v2 --- Number of constituent quark scaling in hadron v2 as well as multi-strange baryon v2: v2 is already established during the quark phase before the hadronization. This seems to be true even for heavy quark like charm. Hadron QM08: A.Dion QM06 STAR preliminary

Source geometry --- quantum interferometry via HBT correlation --- common initial source geometry from centrality measurement AGS RHIC final source geometry from HBT measurement final particle emission anisotropy from v2 measurement

200GeV Au+Au -> h-h (run7) mid-central : 20-50% (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 (1) (2) (3) (4) (5) (6) (7) (8) in-plane (3) s=[-2,-1]/8 (6) s=[1,2]/8 in-plane associate regions c2(data) - c2(flow) (2) s=[-3,-2]/8 (7) s=[2,3]/8 strong preference of associate particle emission towards the in-plane direction s = Trig. R.P. [] (1) s=[-4,-3]/8 (8) s=[3,4]/8 out-of-plane trigger selection average PHENIX preliminary significant not significant compared with systematic errors Asso. Trig. (rad)

Run10 Au+Au at RHIC-PHENIX 200 GeV run (300475-310454) ---> 8.2 B 62.4 GeV run (310698-313322) ---> 700 M 39 GeV run (313591- 314994) ---> 250 M 7.7 GeV run (315450-318946) ---> 1.5 M 温度密度