Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL.

Slides:

Advertisements

Similar presentations

Multi-strange Hadron v2 and Partonic Collectivity

Advertisements

PID v2 and v4 from Au+Au Collisions at √sNN = 200 GeV at RHIC

Mass, Quark-number, Energy Dependence of v 2 and v 4 in Relativistic Nucleus- Nucleus Collisions Yan Lu University of Science and Technology of China Many.

Measurement of charmonia at mid-rapidity at RHIC-PHENIX  c  J/   e + e -  in p+p collisions at √s=200GeV Susumu Oda CNS, University of Tokyo For.

Direct virtual photon production in Au+Au collision at 200 GeV at STAR Bingchu Huang for the STAR collaboration Brookhaven National Laboratory Aug

Bingchu Huang, USTC/BNL 1 Bingchu Huang (for STAR Collaboration) University of Science and Technology of China (USTC) Brookhaven National Laboratory (BNL)

10/03/'06 SPIN2006, T. Horaguchi 1 Measurement of the direct photon production in polarized proton-proton collisions at  s= 200GeV with PHENIX CNS, University.

1 Measurement of phi and Misaki Ouchida ｆ or the PHENIX Collaboration Hiroshima University What is expected? Hadron suppression C.S.R.

The Azimuthal Anisotropy of Electrons from Heavy Flavor Decays in √s NN =200 GeV Au-Au Collisions at PHENIX Shingo Sakai for PHENIX Collaborations (Univ.

David L. Winter for the PHENIX Collaboration High-p T Particle Production with Respect to the Reaction Plane Winter Workshop on Nuclear Dynamics La Jolla,

Non-photonic electron production in STAR A. G. Knospe Yale University 9 April 2008.

Sourav Tarafdar Banaras Hindu University For the PHENIX Collaboration Hard Probes 2012 Measurement of electrons from Heavy Quarks at PHENIX.

1 The Study of D and B Meson Semi- leptonic Decay Contributions to the Non-photonic Electrons Xiaoyan Lin CCNU, China/UCLA for the STAR Collaboration 22.

Xiaoyan LinQuark Matter 2006, Shanghai, Nov , Study B and D Contributions to Non- photonic Electrons via Azimuthal Correlations between Non-

Masashi Kaneta, LBNL Masashi Kaneta for the STAR collaboration Lawrence Berkeley National Lab. First results from STAR experiment at RHIC - Soft hadron.

Identified Particle Ratios at large p T in Au+Au collisions at  s NN = 200 GeV Matthew A. C. Lamont for the STAR Collaboration - Talk Outline - Physics.

Nov2,2001High P T Workshop, BNL Julia Velkovska High pt Hadrons from  sNN = 130 GeV Au-Au collisions measured in PHENIX Julia Velkovska (BNL) for PHENIX.

QM’05 Budapest, HungaryHiroshi Masui (Univ. of Tsukuba) 1 Anisotropic Flow in  s NN = 200 GeV Cu+Cu and Au+Au collisions at RHIC - PHENIX Hiroshi Masui.

D 0 Measurement in Cu+Cu Collisions at √s=200GeV at STAR using the Silicon Inner Tracker (SVT+SSD) Sarah LaPointe Wayne State University For the STAR Collaboration.

Detail study of the medium created in Au+Au collisions with high p T probes by the PHENIX experiment at RHIC Takao Sakaguchi Brookhaven National Laboratory.

The status of high p T Non-photonic electron-hadron correlations in AuAu 200GeV collisions Wenqin Xu University of California, Los Angeles For the STAR.

M. Oldenburg Strange Quark Matter 2006 — March 26–31, Los Angeles, California 1 Centrality Dependence of Azimuthal Anisotropy of Strange Hadrons in 200.

09/15/10Waye State University1 Elliptic Flow of Inclusive Photon Ahmed M. Hamed Midwest Critical Mass University of Toledo, Ohio October, 2005 Wayne.

Electron and identified hadron v 2 to look for hadronic or partonic origin of elliptic flow Shingo Sakai for the PHENIX Collaboration Univ. of Tsukuba.

Masashi Kaneta, RBRC, BNL Heavy Ion Tea in Nuclear Science Division, LBNL (2003/11/5) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL Research.

Energy Scan of Hadron (  0 ) Suppression and Flow in Au+Au Collisions at PHENIX Norbert Novitzky for PHENIX collaboration University of Jyväskylä, Finland.

Measurement of Inclusive Photon in Au+Au collisions by Conversion Method at RHIC-PHENIX T. Hachiya, Hiroshima Univ., for the PHENIX collaboration.

Higher harmonics flow measurement of charged hadrons and electrons in wide kinematic range with PHENIX VTX tracker Maki KUROSAWA for PHENIX collaboration.

Xiaoyan LinHard Probes 2006, Asilomar, June Azimuthal correlations between non-photonic electrons and charged hadrons in p+p collisions from STAR.

Measurements of thermal photons in heavy ion collisions with PHENIX - Torsten Dahms - Stony Brook University February 8 th, 2008 Real photons at low p.

M. Muniruzzaman University of California Riverside For PHENIX Collaboration Reconstruction of  Mesons in K + K - Channel for Au-Au Collisions at  s NN.

2004 Fall JPS meeting (English version) K.Okada1 Measurement of prompt photon in sqrt(s)=200GeV pp collisions Kensuke Okada (RIKEN-BNL research center)

Measurement of photons via conversion pairs with PHENIX at RHIC - Torsten Dahms - Stony Brook University HotQuarks 2006 – May 18, 2006.

Charged Particle Multiplicity and Transverse Energy in √s nn = 130 GeV Au+Au Collisions Klaus Reygers University of Münster, Germany for the PHENIX Collaboration.

1 Nuclear modification and elliptic flow measurements for  mesons at  s NN = 200 GeV d+Au and Au+Au collisions by PHENIX Dipali Pal for the PHENIX collaboration.

Non-photonic electron production in p+p collisions at √s=200 GeV Xiaozhi Bai for the STAR collaboration Central China Normal University University of Illinois.

1 Fukutaro Kajihara (CNS, University of Tokyo) for the PHENIX Collaboration Heavy Quark Measurement by Single Electrons in the PHENIX Experiment.

Study of b quark contributions to non-photonic electron yields by azimuthal angular correlations between non-photonic electrons and hadrons Shingo Sakai.

2000/9/23 JPS meeting in Niigata1 Measurement of single gamma and  0 with PHENIX EMCal (I) H.Torii Kyoto Univ./RIKEN for the PHENIX Collaboration. Sep/23/2000,

JPS/DNPY. Akiba Single Electron Spectra from Au+Au collisions at RHIC Y. Akiba (KEK) for PHENIX Collaboration.

Feasibility study of Heavy Flavor tagging with charged kaons in Au-Au Collisions at √s=200 GeV triggered by High Transverse Momentum Electrons. E.Kistenev,

Elliptic flow of electrons from heavy flavor decays

1 Measurements of Leptonic and Photonic Probes in Au+Au Collisions at PHENIX Run-2 Takashi Matsumoto for the PHENIX collaboration at RHIC & AGS Annual.

24 Nov 2006 Kentaro MIKI University of Tsukuba “electron / photon flow” Elliptic flow measurement of direct photon in √s NN =200GeV Au+Au collisions at.

Hadronic resonance production in Pb+Pb collisions from the ALICE experiment Anders Knospe on behalf of the ALICE Collaboration The University of Texas.

Systematic Study of Elliptic Flow at RHIC Maya SHIMOMURA University of Tsukuba ATHIC 2008 University of Tsukuba, Japan October 13-15, 2008.

Measurement of Azimuthal Anisotropy for High p T Charged Hadrons at RHIC-PHENIX The azimuthal anisotropy of particle production in non-central collisions.

Measurement of photons via conversion pairs with the PHENIX experiment at RHIC - Torsten Dahms - Master of Arts – Thesis Defense Stony Brook University.

Inclusive cross section and single transverse-spin asymmetry of very forward neutron production at PHENIX Spin2012 in Dubna September 17 th, 2012 Yuji.

Study of Charged Hadrons in Au-Au Collisions at with the PHENIX Time Expansion Chamber Dmitri Kotchetkov for the PHENIX Collaboration Department of Physics,

Masashi Kaneta, RBRC, BNL 2003 Fall Meeting of the Division of Nuclear Physics (2003/10/31) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL Research.

Elliptic Flow of Inclusive Photon Elliptic Flow of Inclusive Photon Ahmed M. Hamed Midwest Critical Mass University of Toledo, Ohio Oct. 22,

Xiaoyan Lin SQM 2007, Levoca, Slovakia, June 26, Non-Photonic Electron Angular Correlations with Charged Hadrons from the STAR Experiment: First.

J. Zhao Hard Probe 2012, Cagliari 1, Lawrence Berkeley National Lab, USA 2, Shanghai Institution of Applied Physics, CAS, China Di-electron Production.

High p T hadron production and its quantitative constraint to model parameters Takao Sakaguchi Brookhaven National Laboratory For the PHENIX Collaboration.

Direct Photon v 2 Study in 200 GeV AuAu Collisions at RHIC Guoji Lin (Yale) For STAR Collaboration RHIC & AGS Users’ Meeting, BNL, June 5-9.

Fall DNP Meeting,  meson production in Au-Au and d-Au collision at \ /s NN = 200 GeV Dipali Pal Vanderbilt University (for the PHENIX collaboration)

Azimuthal anisotropy measurement of direct photon in √s NN =200GeV Au+Au collisions at RHIC-PHENIX Photons should be emitted from several states such as.

Di-electron elliptic flow in

坂井　真吾　for the PHENIX Collaboration Shingo Sakai 　 Univ. of Tsukuba

Experimental Studies of Quark Gluon Plasma at RHIC

First physics from the ALICE electromagnetic calorimeters

ShinIchi Esumi, Univ. of Tsukuba

The Study of Elliptic Flow for PID Hadron at RHIC-PHENIX

20th International Conference on Nucleus Nucleus Collisions

Hiroshi Masui for the PHENIX collaboration

Hiroshi Masui for the PHENIX collaboration August 5, 2005

Azimuthal anisotropy of electrons in Au+Au collisions at √SNN=200GeV/c measured with PHENIX at RHIC Shingo Sakai for PHENIX collaboration Univ. of Tsukuba.

Hiroshi Masui / Univ. of Tsukuba

Presentation transcript:

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL Research Center  0 and Photon v 2 Study in  s NN = 200GeV Au+Au Collisions Hisayuki Torii ShinIchi Esumi Saskia Mioduszewski Edouard Kistenev

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 2Overview Introduction PHENIX Analysis 0 v 2 Photon v 2 Summary Outlook

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 3 Why Event Anisotropy? Because of sensitive to collision geometry –In low p T (~<2 GeV/c) Pressure gradient of early stage Hydrodynamical picture is established –In high p T (>~2 GeV/c) Energy loss in dense medium (Jet Quenching) Partonic flow(?) x z y Here we focus on ellipticity of azimuthal momentum distribution, v 2 (second Fourier coefficient)

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 4 PHENIX Experiment Lead Scintillator and Lead Glass EMCs –Gamma measurement ( 0 ) BBCs and ZDCs –Collision centrality determination BBCs –Reaction plane determination and –Its resolution correction

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 5 BBC in PHENIX NorthSouth cm ⊿ η = 3.1 ~ 4.0 ⊿ φ = 2π 64 elements Quartz Cherenkov radiator meshed dynode PMT inner ring middle ring outer ring BBC

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 6 PbGl and PbSc EMC’s 1 Sector = 6x3 Supermodules (SM) 1 PbSc SM = 12x12 towers PbSc towers: 5.52 x 5.52 x 33 cm 3 (18 X 0 ) blocks total 1 PbSc tower: 66 sampling cells 1.5 mm Pb, 4 mm Sc Ganged together by penetrating wavelength shifting fibers for light collection Readout: FEU115M phototubes 2 Sectors PbGl 1 PbGl Sector 16x12 supermodules (SM) 1 PbGl SM 6x4 towers Separate reference system 1 FEM Reads out 2x3 supermodules or 12x12 towers

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 7 Method of  0 and Photon v 2 Measurement Define reaction plane by charged multiplicity on Beam-Beam Counters Photon –Obtained second harmonic coefficient from  0 – 0 reconstruction and subtract background (combinatorial and the others) –For each p T, azimuthal angle, centrality –Commbine both information –Counting number of  0 as a function of - r and fit by the formula event anisotropy parameter measured azimuthal angle of the particle reaction plane angle v n real = v n measured / ( reaction plane resolution ) n Note: the detail of reaction plane definition will be found in nucl-ex/

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 8 Reaction Plane Defined by BBC’s BBC north and south ( ) are used Resolution calculation –Two sub-events are selected –North and south -  /2  /2 Correlation of two BBC’s

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 9 Photon and  0 Identification Requirement for photon –Dead and noisy EMC towers are removed for the analysis –PID cuts:  2 <3 for photon probability to shower shape –|TOF| cut to reject hadron –No charged track hit within cluster isolation window For  0 –Photon ID, plus –Asymmetry cut: |E 1 –E 2 | / ( E 1 +E 2 ) < 0.8 –Combinatorial background is estimated by event mixing Classes categorized for event mixing –centrality : every 10% –BBC Z Vertex : every 10cm in ±30cm –reaction plane direction in PHENIX detector : 24 bins in ±

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 10 Example Plots from the  0 v 2 Analysis Procedure Invariant mass of  from same event and mixed event (classed by reaction plane, centrality, vertex position) normalization range for combinatorial B.G. subtraction 200GeV Au+Au m  [GeV/c 2 ] After subtraction, there is 2nd component of B.G. in p T <2GeV/c region shape assumed as linear+asym. Gauss count number of  0 in a range after 2nd B.G. subtraction (not used the fit function) m  [GeV/c 2 ]  R [rad] Fit function: (average of  0 count)  ( v 2 cos[2(  -  R )]) Green lines : deviation by error of v

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 11 vs. Centrality from 200GeV Au+Au vs. Centrality from 200GeV Au+Au  N part   N part    phenix preliminary

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 12 v 2 vs. p T vs. Centrality from 200GeV Au+Au Statistical error is shown by error bar Systematic error from  0 count method and reaction plane determination is shown by gray box phenix preliminary Charged + K v 2 consistent with  0 v 2 in p T <4GeV/c } nucl-ex/ phenix preliminary The charged  and K v 2 are shown only with statistical errors

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 13 phenix preliminary v 2 vs. p T (Minimum Bias) from 200GeV Au+Au Identified particle v 2 up to p T =10GeV/c } nucl-ex/ phenix preliminary 36.3  10 6 [events] = [(  b) -1 ]

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 14 Comparison with K 0 S and  (STAR) STAR data from nucl-ex/

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 15 Quark Coalescence? Phys. Rev. Lett. 91 (2003) , D.Molnar and S.A. Voloshin qqmeson, qqq(qqq)Baryon How data looks like? Non-strange and strange meson and baryon seems to be merged around p T /n quark 1-3GeV/c But we need more statistics to conclude it

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 16 Photon v 2 from 200 GeV Au+Au phenix preliminary

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 17 Photon v 2 and Hadron v 2 Photon v 2 shows similar tendency with  0 –need more statistics to see photon v 2 after  0 (and also  decay effect

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 18  0 Decay Effect for Photon v 2 Tool is ready

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 19Summary  0 v 2 at RHIC –First measurement In p T =1-10 GeV/c v 2 of the highest p T from identified particle –Charged  v 2 consistent with  0 v 2 In p T =1-3GeV/c –Minimum bias data shows non-zero  0 v 2 Up to p T ~8 GeV/c Photon v 2 –increasing with p T up to ~2GeV/c –and saturated then decreasing(?) –We hope to see photon v 2 after decay effect subtraction with more data

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 20Outlook Feature plan of analysis –Using high p T gamma trigger in run2 Au+Au data We will have about twice statistics in high p T need to study trigger bias –therefore, present analysis results are from minimum bias trigger events – v 2 will be also available by same method –PHENIX has photon v 2 also –Photon v 2 after hadron decay effect, especially low p T ! RHIC run4 Au+Au, it will be –Much more statistics Detail study of v 2 shape around p T =2-4GeV/c –Much higher p T We want to know where is the end of finite v 2 in very high p T –Also capability of photon measurement in low p T by conversion finding

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 21 Backup

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 22 Future Plan of Event Anisotropy Analysis in PHENIX Trying v 2 for all of possible particles with large statistics –Already tried charged ,K,p, deuteron,  0, e +(-) (inclusive), gamma (inclusive) –On going but need much more statistics eta direct gamma –inclusive gamma – [contribution from  0, eta (dominantly)] charm and bottom meson –inclusive e +(-) – [contribution from  0 and eta dalitz decay (dominantly)] –Seems to be hard work, but... K 0 s Lambda resonances penta-quark v 1 on BBC (=3-4) Correlation method for v n Cross section and HBT radii in-plane and out-plane

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 23 Tooooooooooooo many histograms checked After combinatorial background subtraction Example of invariant mass distributions for each p T,  -  R in a centrality bin Before combinatorial background subtraction  0 as a function of  Rb

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 24 phenix preliminary nucl-ex/ v 2 vs. p T (Minimum Bias) from 200GeV Au+Au Identified particle v 2 up to p T =10GeV/c 36.3  10 6 [events] = [(  b) -1 ]

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 25 Comparison with a model phenix preliminary Hydrodynamical calculation agreed in p T ~<2 GeV/c. After that, it is deviated. Hydrodynamical calculation

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 26 Comparison with a model which is described in nucl-th/ Here we don't want to discuss which model can describe the data. To conclude which model can describe the data, we need much more statistics in high p T region. Special thanks to C. Nonaka (one of authors) of nucl-th/ for data of model calculation Comparison with a model phenix preliminary

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 27 Photon Purity with cuts

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 28 Systematic Errors different methods for extracting v2 different reaction planes methods different colors for the sys. errors.