Observation of quasi two-body production in pion minus proton goes to neutron plus four charged pions at 8 GeV/c
Thesis/Dissertation
·
OSTI ID:5420306
This thesis reports the first observation of quasi 2-body production in the backward reaction ..pi../sup -/p ..-->.. n..pi../sup +/..pi../sup +/..pi../sup -/..pi../sup -/. Data were obtained using an 8 GeV/c 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../sup -/p ..-->.. N/sup *//sup 0/ (1520) + rho/sup 0//f/sup 0/, N/sup *//sup 0/ (1670) + rho/sup 0//f/sup 0/, ..delta../sup 0/ (1890) + rho/sup 0//f/sup 0/, and ..delta../sup -/ (1236) + A/sub 2//sup +/. Evidence for a narrow A/sub 1//sup +/ 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.
- Research Organization:
- Illinois Univ., Urbana (USA)
- OSTI ID:
- 5420306
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A RESONANCES
BARYON RESONANCES
BARYONS
BOSONS
CROSS SECTIONS
DATA
DELTA-1236 RESONANCES
DELTA-1890 RESONANCES
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MULTIPLE PRODUCTION
N RESONANCES
N-1520 RESONANCES
N-1680 RESONANCES
NEUTRONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
RHO-765 RESONANCES
TOTAL CROSS SECTIONS
VECTOR MESONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A RESONANCES
BARYON RESONANCES
BARYONS
BOSONS
CROSS SECTIONS
DATA
DELTA-1236 RESONANCES
DELTA-1890 RESONANCES
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MULTIPLE PRODUCTION
N RESONANCES
N-1520 RESONANCES
N-1680 RESONANCES
NEUTRONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
RHO-765 RESONANCES
TOTAL CROSS SECTIONS
VECTOR MESONS