Charged Particle Emissions in High-Frequency Alternative Electric Fields

Abstract

Proton emission, $\alpha$ 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 ${}^{166}$Ir, when the electric field is strong, the dominant decay mode could be changed from $\alpha$ 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.

14 pages, 3 figures, accepted version

References in corpus (4)

• Microscopic mechanism of charged-particle radioactivity and generalization of the Geiger-Nuttall law
• Universal decay rule for reduced widths
• Bound clusters on top of doubly magic nuclei
• $\alpha$-decay properties of ${}^{296}118$ from double-folding potentials

Cited by in corpus (7)

• Recent developments in radioactive charged-particle emissions and related phenomena
• Can extreme electromagnetic fields accelerate the $\alpha$ decay of nuclei?
• $\alpha$ Decays in Superstrong Static Electric Fields
• Phase-dependent cross sections of deuteron-triton fusion in dichromatic intense fields with high-frequency limit
• Cluster-Daughter Overlap as a New Probe of Alpha-Cluster Formation in Medium-Mass and Heavy Even-Even Nuclei
• Dynamically Assisted Tunneling in the Floquet Picture
• Enhanced proton-boron nuclear fusion cross sections in intense high-frequency laser