133 research outputs found
Recent results from the search for the critical point of strongly interacting matter at the CERN SPS
Recent searches at the CERN SPS for evidence of the critical point of
strongly interacting matter are discussed. Experimental results on
theoretically expected signatures, such as event-to-event fluctuations of the
particle multiplicity and the average transverse momentum as well as
intermittency in particle production are presented.Comment: XXXIV Physics in Collision Symposiu
Anisotropic Flow of Strange Particles at SPS
The elliptic flow for Lambda hyperons and K0s mesons was measured by the NA49
experiment in semicentral Pb+Pb collisions at 158A GeV. The standard method of
correlating particles with an event plane has been used. Measurements of v2
near mid-rapidity are reported as a function of centrality, rapidity and
transverse momentum. Elliptic flow of Lambda and K0s particles increases both
with the impact parameter and with the transverse momentum. It is compared with
v2 for pions and protons as well as with various model predictions. The NA49
results are compared with data from NA45/CERES and STAR experiments
System size and centrality dependence of the balance function in A+A collisions at sqrt[sNN]=17.2 GeV
Electric charge correlations were studied for p+p, C+C, Si+Si, and centrality selected Pb+Pb collisions at sqrt[sNN]=17.2 GeV with the NA49 large acceptance detector at the CERN SPS. In particular, long-range pseudorapidity correlations of oppositely charged particles were measured using the balance function method. The width of the balance function decreases with increasing system size and centrality of the reactions. This decrease could be related to an increasing delay of hadronization in central Pb+Pb collisions
System size and centrality dependence of the balance function in A + A collisions at sqrt s NN = 17.2 GeV
Electric charge correlations were studied for p+p, C+C, Si+Si and centrality selected Pb+Pb collisions at sqrt s_NN = 17.2$ GeV with the NA49 large acceptance detector at the CERN-SPS. In particular, long range pseudo-rapidity correlations of oppositely charged particles were measured using the Balance Function method. The width of the Balance Function decreases with increasing system size and centrality of the reactions. This decrease could be related to an increasing delay of hadronization in central Pb+Pb collisions
Anisotropic Flow of Strange Particles at SPS
The elliptic flow for Lambda hyperons and K0s mesons was measured by the NA49 experiment in semicentral Pb+Pb collisions at 158A GeV. The standard method of correlating particles with an event plane has been used. Measurements of v2 near mid-rapidity are reported as a function of centrality, rapidity and transverse momentum. Elliptic flow of Lambda and K0s particles increases both with the impact parameter and with the transverse momentum. It is compared with v2 for pions and protons as well as with various model predictions. The NA49 results are compared with data from NA45/CERES and STAR experiments.The elliptic flow for Lambda hyperons and K0s mesons was measured by the NA49 experiment in semicentral Pb+Pb collisions at 158A GeV. The standard method of correlating particles with an event plane has been used. Measurements of v2 near mid-rapidity are reported as a function of centrality, rapidity and transverse momentum. Elliptic flow of Lambda and K0s particles increases both with the impact parameter and with the transverse momentum. It is compared with v2 for pions and protons as well as with various model predictions. The NA49 results are compared with data from NA45/CERES and STAR experiments
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