Fermi's golden rule applied to the gamma decay in the quasicontinuum of 46Ti

Details Fermi's golden rule applied to the gamma decay in the quasicontinuum of 46Ti Fermi's golden rule applied to the gamma decay in the quasicontinuum of 46Ti

2010-09-17

arxiv.org/abs/1009.3409v2

Phys.Rev.C83:014312,2011

Physics

Nuclear Physics

Nuclear Experiment

11 pages and 12 figures

Scientific paper

10.1103/PhysRevC.83.014312

Particle-gamma coincidences from the 46Ti(p,p' gamma)46Ti inelastic scattering reaction with 15-MeV protons are utilized to obtain gamma-ray spectra as a function of excitation energy. The rich data set allows analyzing the coincidence data with various gates on excitation energy. This enables, for many independent data sets, a simultaneous extraction of level density and radiative strength function (RSF). The results are consistent with one common level density. The data seem to exhibit a universal RSF as the deduced RSFs from different excitation energies show only small fluctuations provided that only excitation energies above 3 MeV are taken into account. If transitions to well-separated low-energy levels are included, the deduced RSF may change by a factor of 2-3, which might be expected due to the involved Porter-Thomas fluctuations.

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