Nuclear recollisions in laser-assisted alpha decay

作者：Castaneda Cortes Hector Mauricio; Mueller Carsten; Keitel Christoph H; Palffy Adriana^*

来源：Physics Letters B, 2013, 723(4-5): 401-405.

DOI：10.1016/j.physletb.2013.05.025

• alpha decay
• Intense laser fields
• Laser-induced recollisions
• Nuclear reactions
• Proton emission

Laser-induced nuclear recollisions following alpha decay in the presence of an intense laser field are investigated theoretically. We show that while an intense optical laser does not influence notably the tunneling rate in alpha decay, it can completely change the alpha particle spectrum. For intensities of 10(22)-10(23) W/cm(2),, the field is strong enough to induce recollisions between the emitted alpha particle and the daughter nucleus. The energy gained by the alpha particle in the field can reach 20 MeV and suffice to trigger several types of nuclear reactions on a femtosecond time scale. Similar conclusions can be drawn about laser-induced recollisioris after proton emission. Prospects for the experimental realization of laser-induced nuclear recollisions are discussed.

• 出版日期2013-6-25