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Title:Observation of quasi two-body production in pion plus proton goes to neutron plus four charged pions at 8 geV/c
Author(s):Wroblicka, William Thaddeus
Doctoral Committee Chair(s):Eisenstein, Bob I.
Department / Program:Physics
Subject(s):quasi two-body production
pion plus proton
neutron +4 charged pions
liquid hydrogen
Abstract:This thesis reports the first observation of quasi 2-body production in the backward reaction pi- P -> npi+pi+pi-pi-. Data were obtained using an 8 GeV/a pion beam incident on a liquid hydrogen target inside the University of Illinois/Argonne National Laboratory streamer chamber. The chamber was triggered by the interaction of a fast, forward neutral hadron in thick plate optical spark chambers. Total backward cross sections are derived for the processes pi-P -> N*o (1520)+p°/f°, N*o (1670)+po/fo I delta° (1890)+p°/f° I and delta-(1236)+A2+. Evidence for a narrow Ai resonance is not seen. Corrections for losses due to finite acceptance are made using Monte Carlo techniques based on a simple baryon exchange model. Comparison is made to another experiment regarding the energy dependence of certain cross sections and a simple power law behavior is observed.
Issue Date:1980
Genre:Dissertation / Thesis
Rights Information:1980 William Thaddeus Wroblicka
Date Available in IDEALS:2011-06-27
Identifier in Online Catalog:438024

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