%0 Journal Article
%T Lambda-p femtoscopy in collisions of Ar + KCl at 1.76AGeV
%A HADES Collaboration (Agakishiev, G. et al
%A Diaz, J.
%A Gil, A.
%J Physical Review C
%D 2010
%V 82
%N 2
%I Amer Physical Soc
%@ 0556-2813
%G English
%F HADESCollaborationAgakishiev_etal2010
%O ISI:000281017300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=393), last updated on Fri, 20 May 2016 14:28:35 +0000
%X Results on Lambda p femtoscopy are reported at the lowest energy so far. At a beam energy of 1.76AGeV, the reaction Ar + KCl was studied with the High Acceptance Di-Electron Spectrometer ( HADES) at SIS18/GSI. A high-statistics and high-purity Lambda sample was collected, allowing for the investigation of Lambda p correlations at low relative momenta. The experimental correlation function is compared to corresponding model calculations allowing the determination of the space-time extent of the Lambda p emission source. The Lambda p source radius is found to be slightly smaller than the pp correlation radius for a similar collision system. The present Lambda p radius is significantly smaller than that found for Au + Au/Pb + Pb collisions in the AGS, SPS, and RHIC energy domains but larger than that observed for electroproduction from He. Taking into account all available data, we find the Lambda p source radius to increase almost linearly with the number of participants to the power of one-third.
%R 10.1103/PhysRevC.82.021901
%U http://arxiv.org/abs/1004.2328
%U https://doi.org/10.1103/PhysRevC.82.021901
%P 021901-5pp