Isospin asymmetries in pion scattering to isoscalar giant quadrupole states in Ni isotopes

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.859· OSTI ID:5539742

Oakley, D S; Braunstein, M R; Kraushaar, J J; Loveman, R A; Peterson, R J; Rilett, D J ^[1]; Boudrie, R L ^[2]

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1. University of Colorado, Boulder, Colorado 80309 (US)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Inelastic scattering of 180 MeV {pi}{sup {minus}} and {pi}{sup +} from {sup 58,60,62,64}Ni shows a prominent quadrupole feature near 65{ital A}{sup {minus}1/3} MeV, identified as the familiar isoscalar giant quadrupole resonance. For the heavier two isotopes, the {pi}{sup {minus}} scattering cross sections greatly exceed those for {pi}{sup +}, the same effect previously noted in pion scattering on heavy nuclei. Since these four nickel targets contain a range of single-nucleon binding energies, these new data demonstrate the influence of these single-particle effects on the apparent isospin response, increasingly neutronlike for the heavier isotopes.

• OSTI ID: 5539742
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BINDING ENERGY
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ENERGY
ENERGY RANGE
EQUATIONS
EVEN-EVEN NUCLEI
GIANT RESONANCE
HADRON REACTIONS
INELASTIC SCATTERING
ISOSPIN
ISOTOPES
LAMPF LINAC
LINEAR ACCELERATORS
MATHEMATICAL MODELS
MATRIX ELEMENTS
MESON FACTORIES
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEI
PARTICLE MODELS
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
QUADRUPOLE MOMENTS
RESONANCE
SCATTERING
SINGLE-PARTICLE MODEL
SUM RULES