Elastic scattering of pions from tritium and ³He in the backward hemisphere in the region of the Δ₃₃(1232) resonance

Thesis/Dissertation · Mon Nov 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10105807· OSTI ID:10105807

Matthews, Scott K. ^[1]

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1. George Washington Univ., Washington, DC (United States)

Several experiments have measured nominally-charge-symmetric scattering of pions from tritium (³H) and ³He. These experiments have covered incident pion energies from 142 MeV to 295 MeV and scattering angles up to 110° in the laboratory. The results have been used to study charge-symmetry breaking and nuclear scattering systematics. In the work I have extended these measurements to angles near 180° for pion energies of 142 MeV, 180 MeV, 220 MeV, and 256 MeV, which bracket the Δ₃₃ pion-nucleon resonance. This is the most extensive set of πT and π³He data in this kinematical region. It will allow tests of scattering theory of pion-nucleus interactions and charge-symmetry breaking in back-angle scattering, and, within the limits of these two theories, it may help improve our understanding of the structure of these nuclei.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10105807
• Report Number(s): LA--12651-T; ON: DE94003376
• Country of Publication: United States
• Language: English

Related Subjects

663460
663510
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
A = 1-5
CROSS SECTIONS
DELTA-1232 BARYONS
ELASTIC SCATTERING
EXPERIMENTAL DATA
HELIUM 3 TARGET
MESON- AND HYPERON-INDUCED REACTIONS AND SCATTERING
NUCLEAR STRUCTURE
PION REACTIONS
SYMMETRY BREAKING
TRITIUM TARGET