High resolution 162 MeV pion scattering to 6[sup [minus]] stretched states in [sup 26]Mg

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

DOI:https://doi.org/10.1103/PhysRevC.48.1632· OSTI ID:6139151

Clausen, B L ^[1]; Peterson, R J; Kormanyos, C; Wise, J E ^[2]; Kurepin, A B; Gavrilov, Y K ^[3]

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1. Geoscience Research Instutute, Loma Linda University, Loma Linda, California 92350 (United States) Physics Department, La Sierra University, Riverside, California 92515 (United States)
2. Nuclear Physics Laboratory, University of Colorado, Boulder, Colorado 80309 (United States)
3. Institute for Nuclear Research, 60th October Anniversary Prospect 7A, 117312, Moscow (Russian Federation)

Inelastic [pi][sup [plus minus]] cross-section measurements at a pion incident energy of 162 MeV were made for 12 previously known 6[sup [minus]] states in [sup 26]Mg. The peak resolution was significantly improved over a previous [sup 26]Mg([pi],[pi][prime]) report describing only two 6[sup [minus]] states. Using both harmonic oscillator and Woods-Saxon wave functions (unbound as necessary), the pion scattering data were combined with electron scattering data to determine the isoscalar magnetic structure coefficients for each state. Although more streched transitions have been located by pion scattering on [sup 26]Mg than in any other nucleus, the total isoscalar strength was only 12% of the extreme single particle sum rule, and only about 1/4 of that predicted by more complete calculations. Discrepancies between the isoscalar strengths for several of these states and those found from a combined electron-proton scattering analysis are pointed out.

• OSTI ID: 6139151
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 48:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663460* -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
663530 -- Nuclear Mass Ranges-- A=20-38-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DWBA
ELECTRON-NUCLEON INTERACTIONS
ELECTRON-PROTON INTERACTIONS
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
FUNCTIONS
HADRON REACTIONS
HARMONIC OSCILLATORS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MAGNESIUM 26 TARGET
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
OSCILLATORS
PARTICLE INTERACTIONS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
POTENTIALS
SCATTERING
STRUCTURE FUNCTIONS
TARGETS
WOODS-SAXON POTENTIAL