Isovector stretched-state excitations in the sup 20 Ne, sup 24 Mg, sup 28 Si, and sup 32 S( p , n ) reactions at 136 MeV

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.1005· OSTI ID:7277244

Tamimi, N; Anderson, B D; Baldwin, A R; Chittrakarn, T; Elaasar, M; Madey, R; Manley, D M; Mostajabodda'vati, M; Watson, J W; Zhang, W ^[1]; Carr, J A ^[2]; Foster, C C ^[3]

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1. Department of Physics, Kent State University, Kent, Ohio 44242 (United States)
2. Supercomputer Computations Research Institute, The Florida State University, Tallahassee, Florida 32306 (United States)
3. Indiana University Cyclotron Facility, Bloomington, Indiana 47408 (United States)

Isovector stretched-state excitations were studied in the ({ital p},{ital n}) reaction at 136 MeV on the self-conjugate {ital s}-{ital d} shell nuclei {sup 20}Ne, {sup 24}Mg, {sup 28}Si, and {sup 32}S. The measurements were performed in three separate experiments using the beam-swinger neutron time-of-flight facility at the Indiana University Cyclotron Facility. Neutrons were detected in large-volume plastic scintillation detectors located in three detector stations at 0{degree}, 24{degree}, and 45{degree} with respect to the undeflected beam line; the flight paths varied from 75 to 134 m. Overall time resolutions of about 825 ps provided energy resolutions of about 320 keV in the first two stations and about 425 keV in the third station. Both ({ital d}{sub 5/2},{ital d}{sub 5/2}{sup {minus}1})5{sup +} 0{h bar}{omega} and ({ital f}{sub 7/2},{ital d}{sub 5/2}{sup {minus}1})6{sup {minus}} 1{h bar}{omega} stretched-state excitations are observed in the ({ital p},{ital n}) reaction on {sup 20}Ne, {sup 24}Mg, and {sup 28}Si.

• DOE Contract Number: FC05-85ER25000
• OSTI ID: 7277244
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:3; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663530 -- Nuclear Mass Ranges-- A=20-38-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOVECTORS
MAGNESIUM 24 TARGET
MEV RANGE
MEV RANGE 100-1000
NEON 20 TARGET
NEUTRON SPECTRA
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
SILICON 28 TARGET
SPECTRA
SULFUR 32 TARGET
TARGETS
TENSORS
TIME-OF-FLIGHT METHOD
VECTORS