Sub-barrier transfer reactions in {sup 58}Ni+{sup 162}Dy

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.2900· OSTI ID:284775

Devlin, M; Cline, D; Ibbotson, R; Simon, M W; Wu, C Y ^[1]

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1. Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627 (United States)

Measurements of few-nucleon transfer reaction probabilities and {ital Q}-value distributions have been made with a kinematic-coincidence detector system at sub-barrier energies in {sup 58}Ni + {sup 162}Dy. Both the one-neutron pickup and one-proton stripping reaction probabilities fall off as a function of the distance of closest approach as expected from semiclassical models; the measured two-neutron pickup probabilities fall off less steeply than expected, consistent with previous measurements. The origin of this {open_quote}{open_quote}slope anomaly{close_quote}{close_quote} is discussed. The measured transfer {ital Q}-value distributions are consistent with semiclassical expectations, both in terms of the optimum {ital Q} values ({ital Q}{sub opt}) and the widths of the {ital Q}-value distributions, except for the one-proton stripping channel {ital Q}{sub opt}, which is more negative than expected by approximately 3 MeV. {open_quote}{open_quote}Cold{close_quote}{close_quote} two-neutron transfer has been observed, and the probability of the cold portion of the two-neutron transfer is in agreement with the previous {gamma}-ray measurements and calculations. No enhanced quasielastic multipair transfer is observed, in contrast to some previous measurements. An upper limit of {ital P}{sub tr}{lt}10{sup 4} is placed on the quasielastic four-neutron pickup channel. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284775
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 53; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DYSPROSIUM 162 TARGET
GAMMA RADIATION
NICKEL 58 REACTIONS
PICKUP REACTIONS
PROBABILITY
Q-VALUE
QUASI-ELASTIC SCATTERING
SEMICLASSICAL APPROXIMATION
TRANSFER REACTIONS