Giant Resonances in Excited Nuclei

Snover, K. A.

doi:10.1146/annurev.nucl.36.1.545

Cited by 18 publications

(16 citation statements)

References 58 publications

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“…1. The photon nuclear vertex coupling is via the iron nucleus giant dipole resonance [11]. The strong interactions control the decay of the compound nucleus 56 F e * → (fission products).…”

Section: Introductionmentioning

confidence: 99%

Photo-disintegration of the iron nucleus in fractured magnetite rocks with magnetostriction

2014

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There has been considerable interest in recent experiments on iron nuclear disintegrations observed when rocks containing such nuclei are crushed and fractured. The resulting nuclear transmutations are particularly strong for the case of magnetite rocks, i.e. loadstones. We argue that the fission of the iron nucleus is a consequence of photo-disintegration. The electro-strong coupling between electromagnetic fields and nuclear giant dipole resonances are central for producing observed nuclear reactions. The large electron energies produced during the fracture of piezomagnetic rocks are closely analogous to the previously discussed case of the fracture of piezoelectric rocks. In both cases electroweak interactions can produce neutrons and neutrinos from energetic protons and electrons thus inducing nuclear transmutations. The electro-strong condensed matter coupling discussed herein represents new many body collective nuclear photo-disintegration effects.

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Section: Introductionmentioning

confidence: 99%

Photo-disintegration of the iron nucleus in fractured magnetite rocks with magnetostriction

2014

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“…The time structure of the GDR mode actually allows a possibility of using it as a probe of nuclear systems very far from normal conditions, see the nice reviews [2,3].…”

Section: Introductionmentioning

confidence: 99%

The dynamical dipole mode in dissipative heavy-ion collisions

et al. 2001

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We study the effect of a direct Giant Dipole Resonance (GDR) excitation in intermediate dinuclear systems with exotic shape and charge distributions formed in charge asymmetric fusion entrance channels. A related enhancement of the GDR gamma yield in the evaporation cascade of the fused nucleus is expected. The dynamical origin of such GDR extra strength will show up in a characteristic anisotropy of the dipole gamma-emission. A fully microscopic analysis of the fusion dynamics is performed with quantitative predictions of the GDR photon yield based on a dynamics-statistics coupling model. In particular we focus our attention on the energy and mass dependence of the effect. We suggest a series of new experiments, in particular some optimal entrance channel conditions. We stress the importance of using the new available radioactive beams.

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“…where σ abs is the γ-absorption cross section in the GDR region. This is the well known formula for the gamma emission rate from hot GDR [20]. It was previously obtained by using the detailed balance principle or from considerations on the statistical equilibrium between dipole mode and black-body radiation [21].…”

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confidence: 99%

Collective Dipole Bremsstrahlung in Fusion Reactions

et al. 2001

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We estimate the dipole radiation emitted in fusion processes. We show that a classical bremsstrahlung approach can account for both the preequilibrium and the thermal photon emission. We give an absolute evaluation of the pre-equilibrium component due to the charge asymmetry in the entrance channel and we study the energy and mass dependence in order to optimize the observation. This dynamical dipole radiation could be a relevant cooling mechanism in the fusion path. We stress the interest in experiments with the new available radioactive beams.Comment: 4 pages (LATEX), 4 Postscript figures, minor text modification

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Giant Resonances in Excited Nuclei

Cited by 18 publications

References 58 publications

Photo-disintegration of the iron nucleus in fractured magnetite rocks with magnetostriction

Photo-disintegration of the iron nucleus in fractured magnetite rocks with magnetostriction

The dynamical dipole mode in dissipative heavy-ion collisions

Collective Dipole Bremsstrahlung in Fusion Reactions

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