70,163 research outputs found
Non Identical strange particle correlations in Au-Au collisions at 200 GeV from the STAR experiment
Information about the space-time evolution of colliding nuclei can be
extracted correlating particles emitted from nuclear collisions. The high
density of particles produced in the STAR experiment allows the measurement of
non-identical strange particle correlations. Due to the absence of Coulomb
interaction, and systems are more sensitive to
the source size than pairs. Strong interaction potential has been studied
using , and for the first time, pairs. The
experimental correlation functions have been described in the frame of a model
based on the interaction. The first preliminary measurement of -
correlations has been performed, allowing to extract information about
the freeze-out time and the space-time asymmetries in particle emission closely
related to the transverse radial expansion and decay of resonances.Comment: 3 pages, 3 figures, contribution to proceedings of the Second Warsaw
Meeting on Particle Correlations and Resonances in Heavy Ion Collisions,
Warsaw 15-18 Oct 2003, to be published in Nucleonic
RooStatsCms: a tool for analyses modelling, combination and statistical studies
The RooStatsCms (RSC) software framework allows analysis modelling and
combination, statistical studies together with the access to sophisticated
graphics routines for results visualisation. The goal of the project is to
complement the existing analyses by means of their combination and accurate
statistical studies.Comment: Proceedings of the 11th Topical Seminar on Innovative Particle and
Radiation Detectors. 4 pages and 5 figure
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