Bose-Einstein correlations inK + p and π+ p at 250 GeV/c

Authors :: A. Eskreys
B. B. Levchenko
J. Mäkela
E. A. De Wolf
L. C. S. Oliveira
W. Kittel
P. van Hal
A. M. F. Endler
V. A. Berezhnoy
H. Graessler
K. Olkiewicz
F. Crijns
J. Stepaniak
Amiran Tomaradze
L. Scholten
T. Haupt
W. Schmitz
L. P. Kishinevskaya
V. A. Uvarov
S. A. Zotkin
P.F. Ermolov
K. Dziunikowska
M. Adamus
A. B. Michałowska
V. M. Ronjin
H. Saarikko
R. Sh. Hakobyan
O. G. Tchikilev
I. V. Ajinenko
A. M. Rybin
V. I. Nikolaenko
A. De Roeck
P. V. Chliapnikov
R. Wischnewski
F. Verbeure
H. F. Roloff
F. Meijers
E. Riipinen
H. Böttcher
Yu. Belokopytov
A. I. Kurnosenko
Source :: Zeitschrift für Physik C Particles and Fields. 37:347-355
Publication Year :: 1988
Publisher :: Springer Science and Business Media LLC, 1988.
Abstract: Two-pion correlations are studied for pions of like charge inK + p andπ + p collisions at 250 GeV/c. An enhanced production is observed at small momentum difference and is attributed to Bose-Einstein interference between identical particles. A systematic study is presented on the influence of parametrization and reference sample. Interpreted in terms of the Kopylov-Podgoretskii parametrization a size of the emitting regionr K ≈1.4 fm is found. The Lorentz invariant parametrization of Goldhaber givesr G ≈0.8 fm. With fixed parametrization, similarity is found for hadronhadron,e + e − and lepton-hadron collisions. No multiplicity or angular dependence is found at our energy.