%0 Journal Article
%T pp and pi pi intensity interferometry in collisions of Ar+KCl at 1.76A GeV
%A HADES Collaboration (Agakishiev, G. et al
%A Diaz, J.
%A Gil, A.
%J European Physical Journal A
%D 2011
%V 47
%N 5
%I Springer
%@ 1434-6001
%G English
%F HADESCollaborationAgakishiev_etal2011
%O ISI:000291659900005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=658), last updated on Fri, 20 May 2016 14:28:10 +0000
%X Results on pp, pi(+) pi(+), and pi-pi-intensity interferometry are reported for collisions of Ar+KCl at 1.76A GeV beam energy, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. The experimental correlation functions as a function of the relative momentum are compared to model calculations allowing the determination of the space-time extent of the corresponding emission sources. The pp source radii are found significantly larger than the pp emission radius. The present radii do well complement the beam-energy dependences of Gaussian source radii of the collision system of size A + A similar or equal to 40 + 40. The pp source radius at fixed beam energy is found to increase linearly with the cube root of the number of participants. From this trend, a lower limit of the pp correlation radius is deduced.
%R 10.1140/epja/i2011-11063-x
%U https://doi.org/10.1140/epja/i2011-11063-x
%P 63-8pp