Nuclear structure effects in quasifission – understanding the formation of the heaviest elements

Nuclear structure effects in quasifission – understanding the formation of the heaviest elements

Quasifission is an important process suppressing the fusion of two heavy nuclei in reactions used to create superheavy elements. Quasifission results in rapid separation of the dinuclear system initially formed at contact. Achieving reliable a priori prediction of quasifission probabilities is a ver...

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Main Authors: Hinde D. J., Williams E., Mohanto G., Simenel C., Jeung D. Y., Dasgupta M., Prasad E., Wakhle A., Vo-Phuoc K., Carter I. P., Cook K. J., Luong D. H., Palshetkar C. S., Rafferty D. C., Simpson E. C.
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/201612303005
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spelling doaj-1f2a14803d32440780ae48b0dd675d492021-08-02T04:04:59ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011230300510.1051/epjconf/201612303005epjconf_hias2016_03005Nuclear structure effects in quasifission – understanding the formation of the heaviest elementsHinde D. J.0Williams E.1Mohanto G.2Simenel C.3Jeung D. Y.4Dasgupta M.5Prasad E.6Wakhle A.7Vo-Phuoc K.8Carter I. P.9Cook K. J.10Luong D. H.11Palshetkar C. S.12Rafferty D. C.13Simpson E. C.14Department of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityDepartment of Nuclear Physics, Research School of Physics and Engineering, The Australian National UniversityQuasifission is an important process suppressing the fusion of two heavy nuclei in reactions used to create superheavy elements. Quasifission results in rapid separation of the dinuclear system initially formed at contact. Achieving reliable a priori prediction of quasifission probabilities is a very diffcult problem. Through measurements with projectiles from C to Ni, the Australian National University’s Heavy Ion Accelerator Facility and CUBE spectrometer have been used to map out mass-angle distributions (MAD) - the fission mass-ratio as a function of centre-of-mass angle. These provide information on quasifission dynamics in the least modeldependent way. Average quasifission time-scales have been extracted, and compared with TDHF calculations of the collisions, with good agreement being found. With the baseline information from the survey of experimental MAD, strong influences of the nuclear structure of the projectile and target nuclei can be clearly determined.http://dx.doi.org/10.1051/epjconf/201612303005
collection DOAJ
language English
format Article
sources DOAJ
author Hinde D. J.
Williams E.
Mohanto G.
Simenel C.
Jeung D. Y.
Dasgupta M.
Prasad E.
Wakhle A.
Vo-Phuoc K.
Carter I. P.
Cook K. J.
Luong D. H.
Palshetkar C. S.
Rafferty D. C.
Simpson E. C.
spellingShingle Hinde D. J.
Williams E.
Mohanto G.
Simenel C.
Jeung D. Y.
Dasgupta M.
Prasad E.
Wakhle A.
Vo-Phuoc K.
Carter I. P.
Cook K. J.
Luong D. H.
Palshetkar C. S.
Rafferty D. C.
Simpson E. C.
Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
EPJ Web of Conferences
author_facet Hinde D. J.
Williams E.
Mohanto G.
Simenel C.
Jeung D. Y.
Dasgupta M.
Prasad E.
Wakhle A.
Vo-Phuoc K.
Carter I. P.
Cook K. J.
Luong D. H.
Palshetkar C. S.
Rafferty D. C.
Simpson E. C.
author_sort Hinde D. J.
title Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
title_short Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
title_full Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
title_fullStr Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
title_full_unstemmed Nuclear structure effects in quasifission – understanding the formation of the heaviest elements
title_sort nuclear structure effects in quasifission – understanding the formation of the heaviest elements
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2016-01-01
description Quasifission is an important process suppressing the fusion of two heavy nuclei in reactions used to create superheavy elements. Quasifission results in rapid separation of the dinuclear system initially formed at contact. Achieving reliable a priori prediction of quasifission probabilities is a very diffcult problem. Through measurements with projectiles from C to Ni, the Australian National University’s Heavy Ion Accelerator Facility and CUBE spectrometer have been used to map out mass-angle distributions (MAD) - the fission mass-ratio as a function of centre-of-mass angle. These provide information on quasifission dynamics in the least modeldependent way. Average quasifission time-scales have been extracted, and compared with TDHF calculations of the collisions, with good agreement being found. With the baseline information from the survey of experimental MAD, strong influences of the nuclear structure of the projectile and target nuclei can be clearly determined.
url http://dx.doi.org/10.1051/epjconf/201612303005
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