Experimental studies of nucleon-nucleon and pion-nucleus interactions at intermediate energies

Technical Report · Mon Oct 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6480949· OSTI ID:6480949

This report summarizes the work on experimental research in intermediate energy nuclear and particle physics carried out by New Mexico State University in 1988--91. Most of these studies have involved investigations of neutron-proton and pion-nucleus interactions. The neutron-proton research is part of a program of studies of interactions between polarized nucleons that we have been involved with for more than ten years. Its purpose has been to help complete the determination of the full set of ten complex nucleon-nucleon amplitudes at energies up to 800 MeV, as well as to continue investigating the possibility of the existence of dibaryon resonances. The give complex isospin-one amplitudes have been fairly well determined, partly as a result of this work. Our work in this period has involved measurements and analysis of data on elastic scattering and total cross sections for polarized neutrons on polarized protons. The pion-nucleus research continues our studies of this interaction in regions where it has not been well explored. One set of experiments includes studies of pion elastic and double-charge-exchange scattering at energies between 300 and 550 MeV, where our data is unique. Another involves elastic and single-charge-exchange scattering of pions from polarized nuclear targets, a new field of research which will give the first extensive set of information on spin-dependent pion-nucleus amplitudes. Still another involves the first set of detailed studies of the kinematic correlations among particles emitted following pion absorption in nuclei.

• Research Organization: New Mexico State Univ., Las Cruces, NM (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG04-88ER40403
• OSTI ID: 6480949
• Report Number(s): DOE/ER/40403-T2; ON: DE91000605
• Country of Publication: United States
• Language: English

Related Subjects

645100 -- High Energy Physics-- Particle Interactions & Properties-Experimental
651000* -- Nuclear Physics
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
CHARGE EXCHANGE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
DOCUMENT TYPES
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
PROGRESS REPORT
RESEARCH PROGRAMS
SCATTERING