期刊
NUCLEAR PHYSICS A
卷 976, 期 -, 页码 23-32出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2018.05.004
关键词
Alpha decay; Proton emission; Cluster radioactivity; Geiger-Nuttall law
资金
- National Natural Science Foundation of China [11535004, 11761161001, 11375086, 11120101005, 11175085, 11235001]
- National Major State Basic Research and Development of China [2016YFE0129300]
- Science and Technology Development Fund of Macau [068/2011/A]
Proton emission, a decay, and cluster radioactivity play an important role in nuclear physics. We show that high-frequency alternative electric fields could deform Coulomb barriers that trap the charged particle, and raise the possibility of speeding up charged particle emissions. They could also cause anisotropic effects in charged particle emissions, and introduce additional terms in the Geiger-Nuttall laws. Our study may further suggest that, for proton emitters like Ir-166, when the electric field is strong, the dominant decay mode could be changed from a decay to proton emission. As high-frequency alternative electric fields correspond to high-frequency laser fields in the dipole approximation, our study could be viewed as a benchmark for future theoretical studies of charged particle emissions in realistic laser fields. (C) 2018 Elsevier B.V. All rights reserved.
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