Laser-Assisted Pion Decay

Abstract

This paper revives the controversial debate that has arisen over the last two decades about the possibility that the electromagnetic field affects the lifetime or the decay rate of an unstable particle. In this research, we show, by performing analytical calculations and extracting numerical results, that the pion lifetime can be changed notably by inserting the decaying pion into an electromagnetic field only if the number of photons transferred between the decaying system and the laser field does not reach the well-known sum-rule. The influence of the laser parameters on the decay rate and branching ratio is also discussed. The surprising result obtained for the pion lifetime is referred to as the well-known quantum Zeno effect.

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Cited by in corpus (15)

• Higgs-strahlung boson production in the presence of a circularly polarized laser field
• Laser effect on the final products of $Z$-boson decay
• Laser-assisted charged Higgs pair production in Inert Higgs Doublet Model (IHDM)
• Elastic electron-proton scattering in the presence of a circularly polarized laser field
• Influence of intense laser fields on measurable quantities in $W^{-}$-boson decay
• Two-body hadronic decay of $K^{+}$ in the presence of a circularly polarized laser field
• Elastic scattering of a muon neutrino by an electron in the presence of a circularly polarized laser field
• New phenomena in laser-assisted leptonic decays of the negatively charged boson $W^{-}$
• 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 a muon neutrino by an electron in an elliptically polarized laser field
• Laser-induced proton decay
• Laser-assisted kaon decay and CPT symmetry violation
• 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)