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The European Physical Journal C
ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)
Abstract Volume 1 Issue 3/4 (1998) pp 593-597
theoretical physics:
Bose-Einstein correlations from opaque sources
Henning Heiselberg (1), Axel P. Vischer (2)
(1) NORDITA, Blegdamsvej 17, DK-2100 Copenhagen Ø., Denmark
(2) Niels Bohr Institute, DK-2100, Copenhagen Ø, Denmark
Received: 20 March 1997
Abstract. Bose-Einstein correlations in relativistic heavy ion collisions are very different for opaque sources than for transparent ones. The Bose-Einstein radius parameters measured in two-particle correlation functions depend sensitively on the mean free path of the particles. In particular we find that the outward radius parameter for an opaque source is smaller than the sideward radius parameter for sufficiently short duration of emission. A long duration of emission can compensate the opacity reduction of the longitudinal radius parameter and explain the experimental measurements of very similar side- and outward radius parameters.
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Online publication: February 5, 1998
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