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Transfer-induced fission in inverse kinematics: Impact on experimental and evaluated nuclear data bases

Abstract : Inverse kinematics is a new tool to study nuclear fission. Its main advantage is the possibility to measure with an unmatched resolution the atomic number of fission fragments, leading to new observables in the properties of fission-fragment distributions. In addition to the resolution improvement, the study of fission based on nuclear collisions in inverse kinematics beneficiates from a larger view with respect to the neutron-induced fission, as in a single experiment the number of fissioning systems and the excitation energy range are widden. With the use of spectrometers, mass and kinetic-energy distributions may now be investigated as a function of the proton and neutron number sharing. The production of fissioning nuclei in transfer reactions allows studying the isotopic yields of fission fragments as a function of the excitation energy. The higher excitation energy resulting in the fusion reaction leading to the compound nucleus 250Cf at an excitation energy of 45MeV is also presented. With the use of inverse kinematics, the charge polarisation of fragments at scission is now revealed with high precision, and it is shown that it cannot be neglected, even at higher excitation energies. In addition, the kinematical properties of the fragments inform on the deformation configuration at scission
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Contributor : Michel Lion Connect in order to contact the contributor
Submitted on : Monday, January 4, 2016 - 11:12:15 AM
Last modification on : Thursday, January 20, 2022 - 3:04:30 AM




F. Farget, M. Caamano, D. Ramos, C. Rodriguez-Tajes, K.-H. Schmidt, et al.. Transfer-induced fission in inverse kinematics: Impact on experimental and evaluated nuclear data bases. European Physical Journal A, EDP Sciences, 2015, 51 (12), pp.175. ⟨10.1140/epja/i2015-15175-y⟩. ⟨in2p3-01249989⟩



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