Resolution of the twofold ambiguity in the E 1 capture amplitudes for the sup 13 C( rvec p ,. gamma. ) sup 14 N reaction
- Duke University, Durham, North Carolina (USA) Triangle Universities Nuclear Laboratory, Durham, North Carolina (USA)
- North Carolina State University, Raleigh, North Carolina (USA) Triangle Universities Nuclear Laboratory, Durham, North Carolina (USA)
The analysis of the cross section and analyzing power data of the {sup 13}{ital C}({ital {rvec p}},{gamma}{sub 0}){sup 14}N reaction leads to two solutions for the {ital E}1 amplitudes and phases which contribute in the region of the giant dipole resonance. One of these solutions indicates that the reaction proceeds predominantly via {ital d}-wave capture while the other corresponds to predominant {ital s}-wave capture. In the present work, we have used the interference between the {ital E}{sub {ital p}}=3.11 MeV {ital M}1 resonance and the {ital E}1-dominated background to determine which of the two off-resonance {ital E}1 solutions is the correct (physical) one. The results show that the dominant {ital d}-wave capture solution is the correct one in the region of this resonance, demonstrating that the low-energy off-resonance {ital E}1 strength has the same (dominant {ital d}-wave) structure as that expected from the giant dipole resonance.
- OSTI ID:
- 6199372
- Journal Information:
- Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:3; ISSN 0556-2813; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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