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Title:Two body rapidity correlations in pi-p interactions at 147 GeV/c
Author(s):Tortora, John Oliver
Doctoral Committee Chair(s):Sard, R.D.
Department / Program:Physics
Subject(s):two body rapidity correlations
Bose-Einstein effect
pion emission
Abstract:Results are presented for inclusive and semi-inclusive two body rapidity correlations for 11 p interactions at 147 GeV/c. Strong short range correlations are seen for particles of opposite sign, while a "Bose-Einstein" effect is seen for like sign particles. It is found that the opposite sign correlations are consistent with a cluster model in which 2/3 of the events are generated by a model of independent w-like emission (w -> pi+pi-pi°) with an w-mass of 1.0 GeV, while the remainder of the events are generated according to a model of independent pion emission. It is also found that the data cannot be fit by a model of independent p-like production ( p -> 2pi) regardless of what p-mass is assumed. The real pO cross section determined from this experiment and the real U) cross section determined from information presented elsewhere are sufficient to account for only a small fraction of the observed ( + -) correlations. Conversely, the correlations do not admit large p and U) inclusive cross sections. The like sign correlations contain a broad positive peak at large azimuthal separation. This effect is enhanced at large transverse momentum. Such results may be taken as evidence of fairly massive charged bodies decaying into three charged pions, or doubly charged clusters decaying into two charged pions.
Issue Date:1976
Genre:Dissertation / Thesis
Rights Information:1976 John Oliver Tortora
Date Available in IDEALS:2011-07-05
Identifier in Online Catalog:2761015

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