Quasielastic transfer in the {sup 136}Xe+{sup 64}Ni reaction

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.2541· OSTI ID:496877

Sanders, S J; Dummer, A K; Farrar, K A; Prosser, F W ^[1]; Fornal, B ^[2]; Janssens, R V; Carpenter, M P; Khoo, T L ^[3]; Beck, C; Mahboub, D; Haas, F ^[4]; Cavallaro, S ^[5]; Sferrazza, M; Mayer, R; Nisius, D ^[2]; de Angelis, G ^[6]

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1. Department of Physics and Astronomy, The University of Kansas, Lawrence, Kansas 66045 (United States)
2. Purdue University, West Lafayette, Indiana 47907 (United States)
3. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
4. Centre de Recherches Nucleaires, IN2P3-CNRS/Universite Louis Pasteur, Boite Postal 22, F-67037 Strasbourg Cedex 2 (France)
5. Dipartimento di Fisica dell`Universita di Catania and Laboratorio Nazionale del Sud, I-95129, Catania (Italy)
6. Istituto Nazionali di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro (Italy)

Single and multinucleon transfer yields for the {sup 136}Xe+{sup 64}Ni reaction at a scattering energy {approx}5{percent} above the Coulomb barrier energy are studied using particle{endash}{gamma}-ray coincidence data. Q-value and scattering-angle distributions are extracted for the stronger channels. A fast transfer mechanism dominates the yields to these channels over an extended Q-value range, leading to a concentration of the cross section near the grazing angle. Analysis of the angular distributions based on a semiclassical barrier penetration model suggests that the single-nucleon and two-neutron exchange channels are dominated, respectively, by direct and two-step sequential transfer from the ground or low-lying excited states of the participating nuclei. The multiproton transfer channels have angular distributions that indicate a more complex mechanism, although direct cluster transfer from an excited configuration cannot be fully discounted. In a separate analysis, the relative population of different mass channels is found to be in general agreement with the expectations of a {open_quotes}random walk{close_quotes} model of particle exchange. {copyright} {ital 1997} {ital The American Physical Society}

• DOE Contract Number: FG03-96ER40981; W-31109-ENG-38
• OSTI ID: 496877
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 55; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
COINCIDENCE METHODS
COULOMB ENERGY
GAMMA RADIATION
MULTI-NUCLEON TRANSFER REACTIONS
NICKEL 64 TARGET
ONE-NUCLEON TRANSFER REACTIONS
Q-VALUE
QUASI-ELASTIC SCATTERING
RANDOMNESS
XENON 136 REACTIONS