Three Pion Interferometry in the NA44 Experiment

Detta är en avhandling från Lund University, EPF, Box 118, 221 00 Lund

Författare: Janus Schmidt-sörensen; Lunds Universitet.; Lund University.; [1999]

Nyckelord: NATURVETENSKAP; NATURAL SCIENCES; quantum field theory; heavy-ion physics; bose-einstein; Elementary particle physics; interferometry; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:1999:Schmidt-Sörensen;

Sammanfattning: This thesis presents a three-particle correlation analysis with pions originating from Sulphur-Lead and Lead-Lead collisions at 200 and 158 GeV/c per nucleon respectively, taken by the CERN heavy-ion experiment NA44. The genuine three-body correlation is suppressed in both colliding systems which indicates that the particle production source is partly coherent. The two-dimensional three-particle correlation function for Lead-Lead is asymmetric in longitudinal and transverse direction. Correction methods for three-, four- and five-body Coulomb are described.

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