Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Borghini, N"'
Publikováno v:
Phys.Lett.B627:49-54,2005
We argue that RHIC data, in particular those on the anisotropic flow coefficients v_2 and v_4, suggest that the matter produced in the early stages of nucleus-nucleus collisions is incompletely thermalized. We interpret the parameter (1/S)(dN/dy), wh
Externí odkaz:
http://arxiv.org/abs/nucl-th/0508009
Autor:
Borghini, N., Ollitrault, J. -Y.
Publikováno v:
Phys.Lett. B642 (2006) 227-231
If the matter produced in ultrarelativistic heavy-ion collisions reaches thermal equilibrium, its subsequent evolution follows the laws of ideal fluid dynamics. We show that general predictions can be made on this basis alone, irrespective of the det
Externí odkaz:
http://arxiv.org/abs/nucl-th/0506045
Publikováno v:
Phys.Rev. C72 (2005) 011901
We report on the first analysis of directed and elliptic flow with the new method of Lee--Yang zeroes. Experimental data are presented for Ru+Ru reactions at 1.69 AGeV measured with the FOPI detector at SIS/GSI. The results obtained with several meth
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0504002
Autor:
Borghini, N., Ollitrault, J. -Y.
Publikováno v:
Phys.Rev. C70 (2004) 064905
We define a set of model-independent observables which generally characterize the azimuthal dependence of two-particle correlations in nucleus-nucleus collisions. We explain how they can be analyzed, and show to what extent such analyses are model de
Externí odkaz:
http://arxiv.org/abs/nucl-th/0407041
Autor:
Borghini, N., Ollitrault, J. -Y.
Publikováno v:
Nucl.Phys. A742 (2004) 130-143
Directed flow in ultrarelativistic nucleus-nucleus collisions is analyzed using the reaction plane from elliptic flow, which reduces the bias from nonflow effects. We combine this method with the determination of elliptic flow from Lee-Yang zeroes. T
Externí odkaz:
http://arxiv.org/abs/nucl-th/0404087
Publikováno v:
J.Phys. G30 (2004) S1213-S1216
We present a new method to analyze anisotropic flow from the genuine correlation among a large number of particles, focusing on the practical implementation of the method.
Comment: 4 pages; contribution to Quark Matter 2004, Oakland, January 11-
Comment: 4 pages; contribution to Quark Matter 2004, Oakland, January 11-
Externí odkaz:
http://arxiv.org/abs/nucl-th/0402053
Publikováno v:
Nucl.Phys. A727 (2003) 373-426
We present a new method to extract anisotropic flow in heavy ion collisions from the genuine correlation among a large number of particles. Anisotropic flow is obtained from the zeroes in the complex plane of a generating function of azimuthal correl
Externí odkaz:
http://arxiv.org/abs/nucl-th/0310016
Publikováno v:
Phys.Lett. B580 (2004) 157-162
We propose to use the theory of phase transitions of Lee and Yang as a practical tool to analyze long-range correlations in a finite-size system. We apply it to the analysis of anisotropic flow in nucleus-nucleus collisions, and show that this method
Externí odkaz:
http://arxiv.org/abs/nucl-th/0307018
Autor:
Wetzler, Alexander, Borghini, N., Dinh, P. M., Ollitrault, J. -Y., Poskanzer, A. M., Voloshin, S. A., Collaboration, the NA49
Publikováno v:
Nucl.Phys. A715 (2003) 583-586
Directed and elliptic flow are reported for charged pions and protons as a function of transverse momentum, rapidity, and centrality in 40 and 158 AGeV Pb + Pb collisions. The standard method of correlating particles with an event plane is used. The
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0212023
Publikováno v:
Nucl.Phys. A715 (2003) 629-632
We present a new method for analysing directed flow, based on a three-particle azimuthal correlation. It is less biased by nonflow correlations than two-particle methods, and requires less statistics than four-particle methods. It is illustrated on N
Externí odkaz:
http://arxiv.org/abs/nucl-th/0208014