Low-energy pion scattering to 1[sup [minus]] states in [sup 12]C

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.48.250· OSTI ID:6423286

Kormanyos, C M; Peterson, R J ^[1]; Applegate, J; Beck, J; Averett, T D; Ritchie, B G ^[2]; Morris, C L; McGill, J ^[3]; Oakley, D S ^[4]

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1. University of Colorado, Boulder, Colorado 80309 (United States)
2. Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287 (United States)
3. H-841, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
4. Lewis and Clark College, Portland, Oregon 97219 (United States)

Differential cross sections for 40, 50, and 65 MeV [pi][sup +] and [pi][sup [minus]] inelastic scattering to 1[sup [minus]] excitations in [sup 12]C have been measured and compared to distorted wave impulse approximation (DWIA) reaction model predictions. Strengths are presented in terms of sum rules for the 1[sup [minus]] state at 10.84 MeV and for the giant dipole resonance from 18 to 25 MeV. An excitation function at [ital q]=224 MeV/[ital c] for the 1[sup [minus]] state at 10.84 MeV is displayed in the energy range from 50 to 291 MeV showing a non-spin-flip pattern. We find inadequacies in the detailed comparison of the shapes of the data to DWIA calculations using several standard nuclear models.

• DOE Contract Number: FG02-86ER40269
• OSTI ID: 6423286
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 48:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663460* -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
ENERGY RANGE
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
OPTICAL MODELS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
RESONANCE
SCATTERING
TARGETS