Laser-assisted kaon decay and CPT symmetry violation

Abstract

In this paper, we have investigated the charged kaons decay at the lowest order in the presence of a circularly polarized laser field. To be more precise, we have examined the leptonic decay of both positive (matter) and negative (antimatter) kaon which weakly decay via the exchange of $W$ boson. Indeed, we have derived the expression of the leptonic decay width, the leptonic branching ratio, the leptonic ratio and the charged kaon lifetime by using the decay matrix approach. In addition, by using numerical computation, we have presented and discussed how the laser field influences these physical quantities. Moreover, we have analyzed the effect of the laser field on the parameter associated with the CPT symmetry. Then, we have concluded that, in the presence of an electromagnetic field and based on this CPT symmetry parameter, it is possible to control the dominance of matter over antimatter or vice-versa by applying an external field to either violate or conserve the CPT symmetry.

arXiv comment17 pages, 5 figures, 2 tables

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• Laser-assisted charged Higgs boson decay in Two Higgs Doublet Model -- type II
• Effect of electron spin polarization in laser-assisted electron-proton scattering
• Relativistic elastic scattering of an electron by a muon in the field of a circularly polarized electromagnetic wave
• Laser-induced proton decay
• Laser-assisted CP-odd and CP-even Higgs bosons production in THDM
• Production of Higgs boson in association with a pair of fermions in the presence of a circularly polarized laser field
• Laser-assisted neutral Higgs-boson pair production in Inert Higgs Doublet Model (IHDM)