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arXiv · 1907.00804

Fission modes in fermium isotopes with Brownian shape-motion model

M. Albertsson·B. G. Carlsson·T. Døssing·P. Möller·J. Randrup·S. Åberg
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Abstract

Fission-fragment mass and total-kinetic-energy distributions following fission of the fermium isotopes $^{256,258,260}\text{Fm}$ at low excitation energy have been calculated using the Brownian shape-motion model. A transition from asymmetric fission in $^{256}\text{Fm}$ to symmetric fission in $^{258}\text{Fm}$ is obtained. The total-kinetic-energy distributions for the three isotopes show radically different behaviour due to varying contributions from different fission modes, with a double-humped distribution for $^{258}\text{Fm}$.

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M. Albertsson, B. G. Carlsson, T. Døssing, P. Möller, J. Randrup, S. Åberg. 2019-07-01. Fission modes in fermium isotopes with Brownian shape-motion model. https://doi.org/10.1051/epjconf/201922301002

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