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Shell effects in damped collisions of $^{88}Sr$ with $^{176}Yb$ at the Coulomb barrier energy
- Source :
- Physical review / C 89(1), 014614 (2014). doi:10.1103/PhysRevC.89.014614
- Publication Year :
- 2014
- Publisher :
- Inst., 2014.
-
Abstract
- This work is a study of the influence of shell effects on the formation of binary fragments in damped collision. We have investigated binary reaction channels of the composite system with Z = 108 produced in the reaction 88Sr+176Yb at an energy slightly above the Bass barrier (Ec.m./EBass = 1.03). Reaction products were detected by using the two-arm time-of-flight spectrometer CORSET at the K130 cyclotron of the Department of Physics, University of Jyv¨askyl¨a. The mass-energy distribution of primary binary fragments has been measured. For targetlike fragments heavier than 190 u, which correspond to a mass transfer as large as twenty nucleons or more, an enhancement of the yields is observed. This striking result can be ascribed to the proton shells at Z = 28 and 82 and implies the persistence of the shell effects in the formation of reaction fragments even for large mass transfers.
- Subjects :
- shell effect
damped collision
ddc:530
multinucleon transfer
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical review / C 89(1), 014614 (2014). doi:10.1103/PhysRevC.89.014614
- Accession number :
- edsair.dedup.wf.001..32cda39e45037dac025369990bd796bd