TY  - JOUR
AU  - HADES Collaboration (Agakishiev, G. et al
AU  - Diaz, J.
AU  - Gil, A.
PY  - 2011
DA  - 2011//
TI  - pp and pi pi intensity interferometry in collisions of Ar+KCl at 1.76A GeV
T2  - Eur. Phys. J. A
JO  - European Physical Journal A
SP  - 63
EP  - 8pp
VL  - 47
IS  - 5
PB  - Springer
AB  - 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.
SN  - 1434-6001
UR  - https://doi.org/10.1140/epja/i2011-11063-x
DO  - 10.1140/epja/i2011-11063-x
LA  - English
N1  - ISI:000291659900005
ID  - HADESCollaborationAgakishiev_etal2011
ER  -