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arXiv · 1111.4447

Description of dipole strength in heavy nuclei in conformity with their quadrupole degrees of freedom

Eckart Grosse·Arnd R. Junghans·Ralph Massarczyk·Ronald Schwengner·Georg Schramm
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Abstract

In conformity to new findings about the widespread occurrence of triaxiality arguments are given in favor of a description of the giant dipole resonance in heavy nuclei by the sum of three Lorentzians. This TLO parameterization allows a strict use of resonance widths Γ in accordance to the theoretically founded power law relation to the resonance energy. No additional variation of Γ with the photon energy and no violation of the sum rule are necessary to obtain a good agreement to nuclear photo-effect, photon scattering and radiative capture data. Photon strength other than E1 has a small effect, but the influence of the level density on photon emission probabilities needs further investigation.

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Eckart Grosse, Arnd R. Junghans, Ralph Massarczyk, Ronald Schwengner, Georg Schramm. 2011-11-18. Description of dipole strength in heavy nuclei in conformity with their quadrupole degrees of freedom. https://doi.org/10.1051/epjconf%2F20122104003

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