Quark Matter 2012

Session

Parallel 2C: Correlations & Fluctuations (Chair X. Dong)

70

14 Aug 2012, 16:45

167. Search for QCD Phase Transitions and the Critical Point Utilizing Particle Ratio Fluctuations and Transverse Momentum Correlations from the STAR Experiment.

Mr Prithwish Tribedy (for the STAR collaboration)

14/08/2012, 16:45

Correlations and fluctuations

Oral Presentation

Dynamical fluctuations in globally conserved quantities such as baryon number, strangeness, charge, and isospin are suggested to carry information about the de-confinement and chiral phase transitions. An observation of enhanced dynamical fluctuations or non-monotonic behavior of transverse momentum correlations as a function of colliding energy might indicate the system has probed the...

186. Studies of net-charge fluctuations and balance functions with the ALICE detector at the LHC

Michael Weber (University of Houston (US))

14/08/2012, 17:05

Correlations and fluctuations

Oral Presentation

The creation of a strongly interacting deconfined Quark Gluon Plasma (QGP) phase in relativistic heavy-ion collisions can be studied by the fluctuations of conserved quantities like net-charge, and correlations between positive and negative pairs by using the method of Balance functions. Net-charge fluctuations are sensitive to the number of charges present in the system, thus the fluctuations...

168. Study of the Sixth Order Cumulant of Net-proton Distributions Measured in STAR at RHIC

Ms Lizhu Chen (Central China Normal University)

14/08/2012, 17:25

Correlations and fluctuations

Oral Presentation

In high-energy nuclear collisions, we study the properties of the excited nuclear matter with QCD degrees of freedom and search for the signals of the QCD phase transition. The ratios of the cumulants of conserved number distributions are sensitive to the correlation length of the system created in heavy-ion collisions, hence they are considered as good observables to study phase transitions....

420. Mixed harmonic charge dependent azimuthal correlations in Pb-Pb collisions at 2.76TeV measured with the ALICE experiment at the LHC

Yasuto Hori (University of Tokyo (JP))

14/08/2012, 17:45

Oral Presentation

The charge dependence of the azimuthal correlations between produced hadrons is an important probe of the QGP matter created in relativistic heavy-ion collisions. In this talk, we will present the mixed harmonic charge dependent azimuthal correlations measured at mid-rapidity in Pb-Pb collisions at \sqrt{s_{NN}} = 2.76 TeV by the ALICE Collaboration at the LHC. We observe a clear charge...

575. Charge balancing and the fall off of the ridge

Piotr Bozek

14/08/2012, 18:05

Oral Presentation

The puzzle of the fall-off of the same-side ridge in relative pseudorapidity, found in unbiased two-particle correlations, is solved. We show that the event-by-event hydrodynamics followed by statistical hadronization with proper charge conservation provides the crucial non-flow component and leads to agreement with the data at soft transverse momenta (p_T < 2 GeV). The fall-off of the...