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Phase-space density in heavy-ion collisions revisited

  • theoretical physics
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Abstract.

We derive the phase space density of bosons from a general boson interferometry formula. We find that the phase space density is connected with the two-particle and the single-particle density distribution functions. If the boson density is large, the two-particle density distribution function cannot be expressed as a product of two single-particle density distributions. However, if the boson density is so small that the two-particle density distribution function can be expressed as a product of two single-particle density distributions, then Bertsch's formula is recovered. For a Gaussian model, the effects of multi-particles Bose-Einstein correlations on the mean phase space density are studied.

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Authors and Affiliations

  1. Physics Department, McGill University, QC,H3A,2T8, Montreal, Canada

    Q. H. Zhang, J. Barrette & C. Gale

  2. Computer Science Department, Concordia University, QC,H3G,1M8, Montreal, Canada

    Q. H. Zhang

Authors
  1. Q. H. Zhang
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  2. J. Barrette
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  3. C. Gale
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Additional information

Received: 10 July 2002, Revised: 18 June 2003, Published online: 5 September 2003

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Zhang, Q.H., Barrette, J. & Gale, C. Phase-space density in heavy-ion collisions revisited. Eur. Phys. J. C 30, 517–523 (2003). https://doi.org/10.1140/epjc/s2003-01295-0

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  • DOI: https://doi.org/10.1140/epjc/s2003-01295-0

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