Quark Matter 2012

Session

Parallel 1C: Correlations & Fluctuations (Chair J. Schukraft)

30

14 Aug 2012, 14:15

291. Detailed HBT measurement with respect to event plane and collision energy in Au+Au collisions at PHENIX

Takafumi for the PHENIX Collaboration Niida (University of Tsukuba)

14/08/2012, 14:15

Oral Presentation

The HBT measurement provides the information on the space-time evolution of particle emitting source in relativistic heavy ion collisions. Azimuthal component of 3D HBT radii relative to event plane gives us the information of the source shape at freeze-out. It also provides the information of the system evolution by comparing with the initial source shape. The recent measurement of higher...

373. Femtoscopy of identified particles at STAR.

Neha Shah (UCLA), neha shah (University of California Los Angeles)

14/08/2012, 14:35

Oral Presentation

Measurement of correlations of pair of particles with small relative momenta provides insight into geometry and lifetime of particle emitting source in relativistic heavy ion collisions. Kaon femtoscopy extends the range of pair transverse mass covered and provides a sample less affected by decay resonances as compared to pions. The correlation functions of non-identical particles in the...

425. Meson and baryon femtoscopy in heavy-ion collisions at ALICE

Maciej Pawel Szymanski (Warsaw University of Technology (PL))

14/08/2012, 14:55

Oral Presentation

In heavy-ion collisions produced at the LHC two-particle correlations of mesons and baryons carry important information about the emitting source. At low relative momentum femtoscopic correlations arise, which are sensitive to the homogeneity lengths of the system. Hydrodynamic models predict that these will decrease with increasing transverse mass of the pair. Such decrease is...

228. Short- and long-range very-high-pT triggered dihadron correlations in PbPb collisions at 2.76 TeV with CMS

Rylan Towne Conway (University of California Davis (US))

14/08/2012, 15:15

Correlations and fluctuations

Oral Presentation

New precision measurements of dihadron correlations triggered by a very high-pT particle in 2.76 TeV PbPb collisions over a broad range of pseudorapidity and the full range of azimuthal angle will be presented. Utilizing a novel and unique high-pT single-track high-level trigger, the analysis explores the full 2011 PbPb data set corresponding to an integrated luminosity of 150/ub collected by...

176. Event shape engineering with ALICE

Alexandru Florin Dobrin (Wayne State University (US))

14/08/2012, 15:35

Correlations and fluctuations

Oral Presentation

Strong fluctuations of the anisotropic flow and the large acceptance of the ALICE detector allow an efficient selection of the events corresponding to a specific initial geometry. This opens many new possibilities to study the properties of the system created in ultra-relativistic nuclear collisions. In this talk, using the Pb-Pb collisions at $\sqrt{s_{NN}} = 2.76$~TeV data, we demonstrate...

225. Azimuthal anisotropy of charged hadrons at very high pT in PbPb collisions at 2.76 TeV with CMS

Victoria Zhukova (University of Kansas (US))

14/08/2012, 15:55

Jets

Oral Presentation

Measurements of the azimuthal anisotropy of charged hadrons are presented for PbPb collisions at 2.76 TeV over an extended transverse momentum range up to approximately 60 GeV/c. The data were collected with the CMS detector at the LHC. Utilizing a novel and unique high-pT single-track high-level trigger, the analysis explores the full 2011 PbPb data set corresponding to an integrated...