Two-body hadronic decay of K⁺ in the presence of a circularly polarized laser field

Abstract

In this study, we have investigated the two-body hadronic decay of the charged kaon, $ K^{+}\rightarrow\pi^{+}+\pi^{0} $, in the presence of a laser field with circular polarization. We have derived, by analytical techniques, the laser-assisted decay width and the branching ratio of the charged kaon decay via the two-body hadronic channel. We have also taken into consideration the impressive results obtained for the laser-assisted charged kaon decay via the leptonic mode in order to understand more clearly the effect of the laser field on the quantities related to the charged kaon decay such as the decay width, the branching ratio and lifetime. A precise comparison of the ratios of hadronic to muonic decay in the presence of the laser field is made to show that the hadronic mode becomes slightly more important by increasing the laser field intensity.

Two-body top-quark decay in a circularly polarized laser field

“…Another important point to mention here is that the order of magnitude of the differential partial decay width is also influenced by the laser field, since it decreases by increasing the electric field strength ξ 0 . This result is in full agreement with other researches which treated the decay processes [9,20].…”

“…From this figure, it is clear that if we increase the field strength ξ 0 the lifetime also increases, especially when it exceeds a threshold equal to 10 5 V cm −1 . These results obtained are similar to those found in the case of the Z-boson [11], pion [22] and kaon decays [8,9]. To interpret these results, we refer to the Turing paradox which was discovered in 1954 by Alan Turing.…”

“…Several works have focused on the scattering processes in a strong electromagnetic field, including particle production reactions in laser-boosted lepton collisions [5], as well as the relativistic elastic scattering of a muon neutrino by an electron in an elliptically polarized laser field [6]. In addition, various processes in the domain of decay have recently attracted attention of researchers, such as the influence of intense laser fields on measurable quantities in W − -boson decay [7], the decay of kaon K + in the presence of a circularly polarized laser field [8,9], laser-assisted muon decay [10], and the laser effect on the final products of Z-boson decay [11]. In this research, we study the lowest order two-body decay of the top quark t → q W + , in the presence of a circularly polarized laser field, in the framework of the electroweak theory.…”

Laser-assisted CP-odd and CP-even Higgs bosons production in THDM

“…Nowadays, such high-power laser systems motivate researchers to study fundamental processes in electroweak and quantum electrodynamics in the presence of a strong electromagnetic field realistic in experiments. Some typical processes in high energy are laser-assisted scattering [12][13][14][15] and decay processes [16][17][18]. In [19], we have discussed the effect of a strong electromagnetic field with a circular polarization on the cross section of the charged Higgs pair production in the Inert Higgs Doublet Model (IHDM).…”

Production of Higgs boson in association with a pair of fermions in the presence of a circularly polarized laser field

“…Besides, several authors have been interested in the study of particle physics interactions inside an external field. In addition, in Refs [4][5][6], the authors show that the electromagnetic field could affect the physical properties of a particle such as its decay width and lifetime. In Refs [7][8][9][10], we have studied the muon pair production and Higgs pair production inside a laser field with circular polarization, and we have indicated that the total cross-section is affected significantly by the laser field.…”