Coulomb breakup reactions of 93,94Zr in inverse kinematics

Le résumé fourni par la source

Coulomb breakup reactions of |$^{93,94}$|Zr have been studied in inverse kinematics at incident beam energies of about 200 MeV/nucleon in order to evaluate neutron capture reaction methods. The |$^{93}$|Zr(n,|$\gamma$|⁠)|$^{94}$|Zr reaction is particularly important as a candidate nuclear transmutation reaction for the long-lived fission product |$^{93}$|Zr in nuclear power plants. One- and two-neutron removal cross sections on Pb and C targets were measured to deduce the inclusive Coulomb breakup cross sections, 375 |$\pm$| 29 (stat.) |$\pm$| 30 (syst.) and 403 |$\pm$| 26 (stat.) |$\pm$| 31 (syst.) mb for |$^{93}$|Zr and |$^{94}$|Zr, respectively. The results are compared with estimates using the standard Lorentzian model and microscopic calculations. The results reveal a possible contribution of the pygmy dipole resonance or giant quadrupole resonance in the Coulomb breakup reactions of |$^{94}$|Zr.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.