Phys. Rev. Lett. 93, 072501 (2004) [4 pages]Transient Effects in Fission from New Experimental SignaturesReceived 14 January 2004; published 12 August 2004 A new experimental approach is introduced to investigate the relaxation of the nuclear deformation degrees of freedom. Highly excited fissioning systems with compact shapes and low angular momenta are produced in peripheral relativistic heavy-ion collisions. Both fission fragments are identified in atomic number. Fission cross sections and fission-fragment element distributions are determined as a function of the fissioning element. From the comparison of these new observables with a nuclear-reaction code a value for the transient time is deduced. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.072501
DOI:
10.1103/PhysRevLett.93.072501
PACS:
24.75.+i, 24.10.–i, 25.70.–z, 25.75.–q
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