Laser-nucleus interactions in the sudden regime

Kobzak S, Weidenmüller HA, Pálffy A (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Physical Review C - Nuclear Physics American Physical Society

Book Volume: 103

Article Number: 044616

Journal Issue: 4

DOI: 10.1103/PhysRevC.103.044616

Abstract

The interaction between medium-weight nuclei and a strong zeptosecond laser pulse of MeV photons is investigated theoretically. Multiple absorption of photons competes with nuclear equilibration. We investigate the sudden regime. Here the rate of photon absorption is so strong that there is no time for the nucleus to fully equilibrate after each photon absorption process. We follow the temporal evolution of the system in terms of a set of rate equations. These account for dipole absorption and induced dipole emission, equilibration (modeled in terms of particle-hole states coupled by the residual nuclear interaction), and neutron decay (populating a chain of proton-rich nuclei). Our results are compared with earlier work addressing the adiabatic regime where equilibration is instantaneous. We predict the degree of excitation and the range of nuclei reached by neutron evaporation. These findings are relevant for planning future experiments.

Authors with CRIS profile

Adriana Palffy-Buß Lehrstuhl für Theoretische Physik

Involved external institutions

Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics DE Germany (DE)

How to cite

APA:

Kobzak, S., Weidenmüller, H.A., & Pálffy, A. (2021). Laser-nucleus interactions in the sudden regime. Physical Review C - Nuclear Physics, 103(4). https://dx.doi.org/10.1103/PhysRevC.103.044616

MLA:

Kobzak, Sergei, Hans A. Weidenmüller, and Adriana Pálffy. "Laser-nucleus interactions in the sudden regime." Physical Review C - Nuclear Physics 103.4 (2021).

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