Title
Bose-Einstein correlations in pp collisions at 400 GeV/c Bose-Einstein correlations in pp collisions at 400 GeV/c
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
Zeitschrift für Physik : C : particles and fields. - Berlin
Volume/pages
54(1992) :1 , p. 21-32
ISSN
0170-9739
ISI
A1992HP40800003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Bose-Einstein correlations among identically charged pions produced in pp collisions at 400 GeV/c are studied using the EHS spectrometer. Employing the Kopylov-Podgoretskii parametrization, the average size of the emitting region r(k) and its lifetime tau for pion production were determined to be r(k) = 1.71 +/- 0.04 fm and c-tau = 0.89 +/- 0.05 fm. The average size r(g) in terms of the Lorentz invariant Goldhaber parametrization was determined to be r(g) = 1.20 +/- 0.03 fm. A decrease of the size with increasing momentum of the pions was observed. The size and the incoherence parameter of the pion emitting region were determined as a function of the charged particle multiplicity and the momentum of the pions. Identified charged kaons were used to study Bose-Einstein correlations among identically charged kaons K+/- K+/-. The average size of the emitting region for kaon production was determined to be r(k) = 1.87 +/- 0.33 fm in terms of the Kopylov-Podgoretskii parametrization. A study of the influence of a reference sample is presented.
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