Analyzing powers of polarized deuterons in low-energy {sup 6}Li(d,{alpha}){sup 4}He and {sup 6}Li(d,p{sub 0}){sup 7}Li reactions in a resonance region
- Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
Low-energy {sup 6}Li(d,{alpha}){sup 4}He and {sup 6}Li(d,p{sub 0}){sup 7}Li reactions are affected by the 2{sup +} resonance level of {sup 8}Be at E{sub x}{approx_equal}22.2 MeV. In this work, we present a new method to extract fractions of the 2{sup +} components of the reactions, which include the resonance, by using the tensor-analyzing powers, T{sub 2q}, of polarized deuterons. We measured T{sub 2q} for q=0,1,2 at the very low incident energy E{sub d}=90 keV and analyzed the data by the invariant amplitude method giving the 2{sup +} fractions as 0.90{+-}0.05 for {sup 6}Li(d,p) and 0.998{+-}0.003 for {sup 6}Li(d,{alpha}). For {sup 6}Li(d,p), it was comparable to the resonance fraction extracted from cross-section data, whereas for {sup 6}Li(d,{alpha}), the 2{sup +} fraction was much larger than the resonance fraction extracted from cross-section data. A part of the analyses was extended to higher energies up to 960 keV.
- OSTI ID:
- 20864211
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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