Speaker
Emil Aleksander Kaptur
(University of Silesia (PL))
Description
The NA61/SHINE experiment studies the onset of deconfinement in strongly
interacting matter by performing a two-dimensional scan of particle
production in beam momentum (13A, 20A, 30A, 40A, 75A and 150A GeV/c)
and system size (p+p, 7Be+9Be, Ar+Sc, Xe+La, Pb+Pb).
In this contribution, single particle spectra of pions, kaons and protons
produced in inelastic p+p collisions and spectra of negatively charged
pions produced in centrality selected Be+Be reactions will be presented.
The energy dependence of observables sensitive to deconfinement and inspired
by the Statistical Model of the Early Stage (kink, horn and step) already
show interesting behaviour in p+p collisions, which is not described by the
Monte-Carlo models. The Be+Be data indicate presence of collective effects.
Influence of isospin effects will also be discussed based on the comparison
between p+p and Be+Be data.
Primary author
Emil Aleksander Kaptur
(University of Silesia (PL))
