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Space structure of a fireball and the pion radius

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Zeitschrift für Physik C Particles and Fields

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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Authors and Affiliations

  1. 1749 Oxford Street, 94709, Berkeley, CA, USA

    T. F. Hoang

  2. Lawrence Berkeley Laboratory, University of California, 94720, Berkeley, CA, USA

    Bruce Cork & H. J. Crawford

Authors
  1. T. F. Hoang
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  2. Bruce Cork
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  3. H. J. Crawford
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Additional information

This work was supported in part by the Director, Office of Energy Research, Division of Nuclear Physics of the Office of High Energy and Nuclear Physics of the U.S. Department of Energy under Contract W-7405-ENG-48

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Hoang, T.F., Cork, B. & Crawford, H.J. Space structure of a fireball and the pion radius. Z. Phys. C - Particles and Fields 12, 345–357 (1982). https://doi.org/10.1007/BF01557579

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  • DOI: https://doi.org/10.1007/BF01557579

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