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Final state interactions in Bose-Einstein correlations and source functions

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Zeitschrift für Physik C Particles and Fields

Abstract

We study the Bose-Einstein correlations (BEC) with the final state interactions (FSI) based on a framework of Bowler. Several new formulae including the FSI are utilized in analyses of data for π±π± production ine + e − annihilation by TPC, OPAL, DELPHI, and ALEPH Collaborations. Our results show that when the exponential and Gaussian distributions are used as the source functions the degree of coherence approaches approximately unity here. We analyse also data forK 0 S K 0 S pairs atZ-pole ine + e − annihilation and show that within the present statistical errors there is no difference between the BEC for pions and kaons. Moreover, using the same formulae we obtain a fractional degree of coherence for the data for BEC inp+p collision by NA27 Collaboration.

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Authors and Affiliations

  1. Department of Physics, Faculty of Liberal Arts, Shinshu University, Matsumoto 390, Japan

    M. Biyajima

  2. Toba National College of Maritime Technology, Toba 517, Japan

    T. Mizoguchi

  3. Soltan Institute for Nuclear Studies, Hoża 69, PL-00-681, Warsaw, Poland

    G. Wilk

Authors
  1. M. Biyajima
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  2. T. Mizoguchi
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  3. G. Wilk
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Biyajima, M., Mizoguchi, T. & Wilk, G. Final state interactions in Bose-Einstein correlations and source functions. Z. Phys. C - Particles and Fields 65, 511–518 (1995). https://doi.org/10.1007/BF01556139

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  • DOI: https://doi.org/10.1007/BF01556139

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