A counterexample to a corollary of Kim et al.

Evidence for Multiphonon Giant Resonances in Electromagnetic Fission ofU238

“…These values should be compared to the ones obtained from the calculation in harmonic approximation (see Table I) which amount to 0.22 (Pb target) and 0.11 (Sn target) in accord with the experimental ones. Consistency of the cross section for the double dipole giant resonance, which should provide the strongest contribution, with the harmonic approximation was reported in [18] and was found in our own analysis of the 238 U neutron decay data [1].…”

“…(ii) The cross sections were multiplied with the partial fission decay width ÿ f =ÿ f ÿ xn ), adopting the values given in [18]. These fission probabilities increase with excitation energy and, within the relevant domain, range from about 0.2 to 0.8.…”

Multiphonon Giant Resonances in Nuclei

“…Electromagnetic cross sections were obtained using the folding model (see Section 3.2.2); Figure 12 shows them separately for the GDR, GQR, and DGDR components. The full curves delineating the hatched areas denote the sum of all Figure 12 Cross sections for the 1n-to 5n-removal products from 238 U projectiles at about 950 MeV/u incident on targets of nuclear charge Z target (74). The full curves delineating the hatched areas denote calculations using two different experimental giant dipole resonance (GDR) parameter sets (76,77).…”

Anomalies in the Nuclear Dissociation Cross Sections of208Pbat 33 TeV

“…Dissociation of relativistic heavy ions (RHI) by the electromagnetic field of target nuclei has been studied extensively for two decades [1][2][3][4][5]. Recent experimental work has concentrated on efforts to isolate the effects of multiple excitations of the giant dipole resonance (multiphonon excitations) in experimental dissociation data [6][7][8][9]. Plans for the construction of RHI colliders at Brookhaven and CERN have, however, generated renewed interest in the very large total dissociation cross sections expected for ultrarelativistic heavy ions [10], since these processes can be important mechanisms for beam loss in such machines [10][11][12].…”