BOSE-EINSTEIN CORRELATIONS OF POSITIVE PIONS IN COLLISIONS OF Nb+Nb AND Au+Au AT 650 A MeV
- 1 December 1988
- journal article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 3 (18) , 1745-1752
- https://doi.org/10.1142/s0217732388002105
Abstract
Two-pion interferometry analysis of the Plastic Ball data for Au+Au and Nb+Nb interactions at 650 A MeV kinetic energy is presented. The values of 3.4±0.4 fm and 4.8±0.6 fm for pion source sizes and 3.6±0.8 fm /c and 5.7±0.7 fm /c for lifetimes are obtained for the Nb+Nb and Au+Au cases, respectively. No significant change in radius as a function of multiplicity has been observed. However, the selection of π+ with low momenta in the center of mass system reveals an enlarged radius for the Au+Au system but no such increase for Nb+Nb .Keywords
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