Space structure of a fireball and the pion radius |
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| Authors: | T F Hoang Bruce Cork H J Crawford |
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| Institution: | 1. 1749 Oxford Street, 94709, Berkeley, CA, USA
2. Lawrence Berkeley Laboratory, University of California, 94720, Berkeley, CA, USA
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| Abstract: | Results of calculation of the fireball radius as measured by means of the Hanbury-Brown and Twiss (HBT) effect are interpreted in the context of Landau's hydrodynamical model. A method based on a simple geometric picture of fireball formation is used to deduce the pion radius. From available data of various \(\bar p\) p annihilations andπ ± p,K + p collisions, it is foundr π=0.76±0.22 fm. A derivation is given on the decoherence factor of the Kopylov formula. A discussion is presented on other applications of the HBT effect to particle physics. |
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