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Bose-Einstein correlations in the invariant [ital Q][sup 2] variable and intermittency

Journal Article · · Physical Review, D (Particles Fields); (United States)
; ; ;  [1]
  1. Physics Department, University of Marburg, Marburg (Germany) P. N. Lebedev Institute, Moscow (Russian Federation)

The dependence of two-particle Bose-Einstein correlations on the squared invariant momentum difference [ital Q][sup 2] has been calculated in several models with fixed space-time sizes of the pion source. The complex relationship between the apparent radius and incoherence factor of the source measured with the help of [ital Q], and the true'' radii and incoherence factors is established. The resulting correlation functions have a sharp and approximately powerlike peak at small [ital Q] in agreement with preliminary data of the UA1 Collaboration. The appearance of this powerlike peak at small [ital Q] due to the kinematics of the [ital Q] variable imples that the observed [ital Q] dependence does not necessarily constitute evidence either for intermittency or for a fractal nature of the source.

OSTI ID:
5409121
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:3; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English