Muon pair production via e<sup>+</sup>e<sup>−</sup>annihilation in the presence of a circularly polarized laser field

Ouali, M.; Ouhammou, M.; Taj, S.; Benbrik, Rachid; Manaut, B.

doi:10.1088/1555-6611/ac8fe8

Cited by 6 publications

(2 citation statements)

References 35 publications

(38 reference statements)

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“…Initially, the sum rule was manifested in atomic processes that occur in the presence of the laser in the nonrelativistic domain [41][42][43][44], and then it was extended to other relativistic scattering [45][46][47][48][49] and weak decay processes [30,31,50]. In the framework of the laser-matter interaction, the only special mathematical functions involved in the theoretical calculation are the Bessel functions.…”

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confidence: 99%

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻

Mouslih¹,

Jakha²,

Dahiri³

et al. 2022

Phys. Scr.

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The majority of studies and experiments performed at electron-positron colliders over the last two decades have focused on studying $W$ and $Z$ weak force-carrying bosons and accurately measuring all their properties, not only because they play an important role in establishing Standard Model theory and providing an accurate test of its predictions of particle interactions, but also because they are a unique tool for probing manifestations of the new physics beyond the standard model. Therefore, it would be particularly important to discuss some of the new phenomena and changes that can arise in these bosons when their decay occurs under an external electromagnetic field. In a recent paper, we investigated the laser effect on the final products of $Z$ boson decay and found that laser had an unprecedented effect on branching ratios. In this work and within the standard Glashow-Weinberg-Salam model of electroweak interactions, we study theoretically the leptonic decay of the $W^{-}$-boson $(W^{-}\rightarrow \ell^{-}\bar{\nu}_{\ell})$ in the presence of a circularly polarized electromagnetic field and we examine the laser effect, in terms of its field strength and frequency, on the leptonic decay rate and the phenomenon of multiphoton processes. The calculations are carried out using the exact relativistic wave functions of charged particles in an electromagnetic field. It was found that the laser significantly contributed to reducing the probability of $W^{-}$-boson decay. We show that the laser-assisted decay rate is equal to the laser-free one only when the famous Kroll-Watson sum rule is fulfilled. The notable effect of the laser on the leptonic decay rate was reasonably interpreted by the well-known quantum Zeno effect or by the opening of channels other than leptonic ones to decay. This work will pave the way for an upcoming one to study the hadronic decay of the $W^{-}$-boson and then explore the laser effect on its lifetime and branching ratios.

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confidence: 99%

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻

Mouslih¹,

Jakha²,

Dahiri³

et al. 2022

Phys. Scr.

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“…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).…”

Section: Introductionmentioning

confidence: 99%

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

Ouhammou¹,

Ouali²,

Taj³

et al. 2022

Laser Phys. Lett.

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In this paper, we have theoretically studied the neutral Higgs pair production in Two Higgs Doublet Model (THDM) in the presence of a circularly polarized laser field. The laser-assisted differential partial cross section is derived in the centre of mass frame at the leading order including Z diagram. The total cross section is computed numerically by integrating the differential cross section over the solid angle d Ω . Two benchmark points are discussed for the THDM parameters. In the first step, we have analysed the total cross section of e + e − → h 0 A 0 by considering H 0 as the standard model (SM)-like Higgs boson. Then, the process e + e − → H 0 A 0 is studied by taking h 0 as the Higgs boson of the SM. For both benchmark points, the laser-assisted total cross section of the studied processes depends on the produced neutral Higgs masses, the centre of mass energy and the laser field parameters. In addition, the maximum cross section occurs at high centre of mass energy for the process e + e − → H 0 A 0 as compared to that of e + e − → h 0 A 0 .

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Top-quark pair production by electron–positron annihilation in a circularly polarized laser field

Chahri¹,

Mouslih²,

Jakha³

et al. 2023

Laser Phys. Lett.

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In the framework of the electroweak standard model, we have investigated the top quarks pair production from e − e + annihilation at the energies of a future compact linear collider in the presence of an intense circularly polarized laser field. We have analytically generated the detailed expression for the laser-assisted differential cross section using the lowest-order Dirac-Volkov formalism, including the γ t t ˉ and Z t t ˉ interactions, in the center-of-mass frame. A wide range of center-of-mass energies corresponding to the future e − e + collider has been covered to study the behavior of the total cross section (TCS); this future compact linear collider constitutes an important direction in the study of top quark physics in order to improve the measurements, and the limits of some physical parameters obtained so far at the LHC and the Tevatron. We have analyzed the dependence of the laser-assisted total and partial cross sections on the energy of the center-of-mass of the colliding system e − e + and also on the parameters of the laser field, such as the number of exchanged photons, the laser field strength, and its frequency. The results indicate that the laser field decreases the order of magnitude of the TCS as much as the laser field strength increases or decreases its frequency.

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Muon pair production via e⁺e⁻annihilation in the presence of a circularly polarized laser field

Abstract: In this paper, we have investigated the elementary particle reaction e + e − … Show more

Cited by 6 publications

References 35 publications

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻

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

Top-quark pair production by electron–positron annihilation in a circularly polarized laser field

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Muon pair production via e+e−annihilation in the presence of a circularly polarized laser field

Abstract: In this paper, we have investigated the elementary particle reaction e + e − … Show more

Cited by 6 publications

References 35 publications

New phenomena in laser-assisted leptonic decays of the negatively charged boson W −

New phenomena in laser-assisted leptonic decays of the negatively charged boson W −

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

Top-quark pair production by electron–positron annihilation in a circularly polarized laser field

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Product

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Muon pair production via e⁺e⁻annihilation in the presence of a circularly polarized laser field

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻

New phenomena in laser-assisted leptonic decays of the negatively charged boson W ⁻