sup 17 O( rvec d , t ) sup 16 O at 89 MeV; j dependence and particle-hole matrix elements

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.922· OSTI ID:6363702

Saha, S K; Daehnick, W W; Dytman, S A; Li, P C; Hardie, J G ^[1]; Berg, G P.A.; Foster, C C; Jones, W P; Miller, D W; Stephenson, E J ^[2]

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1. Department of Physics, University of Pittsburgh, Pittsburgh, PA (USA)
2. Indiana University Cyclotron Facility, Bloomington, IN (USA)

Differential cross sections and analyzing powers were measured for {sup 17}O({ital {rvec d}},{ital t}){sup 16}O with polarized deuterons of 89 MeV. States of {sup 16}O up to 22.89 MeV excitation energy have been studied with an overall resolution of 60 keV. Discrimination between analyzing powers ({ital A}{sub {ital y}}) for different {ital j} transfers was found to be very good. The unique {ital A}{sub {ital y}}({theta}) shapes were used to deduce {ital p}{sub 1/2}-{ital p}{sub 3/2} mixing ratios for those levels where it was significant. We find unexpectedly strong mixing for the 6.130 MeV, 3{sup {minus}}, and 8.872 MeV, 2{sup {minus}}, levels. Exact finite-range distorted-wave Born approximation calculations were used to identify {ital l} transfers and to extract spectroscopic strengths. Up to 23 MeV excitation, pickup strength is dominated by 1{ital p} transfer; less than 2% of the observed particle-hole strength results from 2{ital s}, 1{ital d}, or 1{ital f} transfer. Twelve particle-hole matrix elements for ({ital p}{sub 1/2}{sup {minus}1}{ital d}{sub 5/2}) and ({ital p}{sub 3/2}{sup {minus}1}{ital d}{sub 5/2}) configurations have been deduced. Comparison with previous work shows general agreement except for the {ital T}=0,{ital J}{sup {pi}}=3{sup {minus}} term.

• OSTI ID: 6363702
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:3; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BEAMS
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEUTERON REACTIONS
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DWBA
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 10-100
MIXING RATIO
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
OXYGEN 16
OXYGEN 17 TARGET
OXYGEN ISOTOPES
PICKUP REACTIONS
POLARIZED BEAMS
SPECTROSCOPIC FACTORS
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRITONS