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   Articles with "electron positron" as a keyword



Modulation instability of lower hybrid waves leading to cusp solitons in electron-positron(hole)-ion Thomas Fermi plasma

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recommendations! Published in 2019 at "Contributions to Plasma Physics"

DOI: 10.1002/ctpp.201800132

Abstract: Following the idea of three wave resonant interactions of lower hybrid waves it is shown that quantum -modified lower hybrid (QLH) wave in electron positron ion plasma with spatial dispersion can decay into another QLH… read more here.

Keywords: lower hybrid; hybrid waves; instability lower; electron positron ... See more keywords

Dynamical behaviour of non‐linear quantum ion acoustic wave in weakly magnetized electron–positron–ion plasma

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recommendations! Published in 2019 at "Contributions to Plasma Physics"

DOI: 10.1002/ctpp.201900072

Abstract: In order to investigate the propagation characteristics of linear and non‐linear ion acoustic waves (IAWs) in electron–positron–ion quantum plasma in the presence of external weak magnetic field, we have used a quantum hydrodynamic model, and… read more here.

Keywords: non linear; magnetic field; ion acoustic; positron ion ... See more keywords

Ion acoustic solitary waves in magnetized electron–positron–ion plasmas with Tsallis distributed electrons

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recommendations! Published in 2020 at "Contributions to Plasma Physics"

DOI: 10.1002/ctpp.202000068

Abstract: The propagation of ion acoustic (IA) solitary waves is investigated in a magnetized electron‐positron‐ion (EPI) plasma with Tsalli distributed electrons and Maxwellian positrons. A non‐linear Korteweg–de Vries (KdV)‐type equation is derived for the potential by… read more here.

Keywords: ion acoustic; solitary waves; electron positron; acoustic solitary ... See more keywords

Polarized hyperon production in single-inclusive electron-positron annihilation at next-to-leading order

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recommendations! Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep01(2019)111

Abstract: A bstractWe study the production of polarized Λ-hyperons in electron-positron annihilation. We are particularly interested in the transverse-spin dependence of the cross section for unpolarized incident electron-positron pairs. At high energies this process may be… read more here.

Keywords: polarized hyperon; leading order; electron positron; positron annihilation ... See more keywords

Electron-positron annihilation into heavy leptons at two loops

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recommendations! Published in 2025 at "Journal of High Energy Physics"

DOI: 10.1007/jhep08(2025)118

Abstract: We calculate the NNLO QED corrections to the C-even part of differential cross section of e+e− → μ+μ− process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov’s… read more here.

Keywords: leptons two; electron positron; heavy leptons; two loops ... See more keywords

Dynamic behavior of positron acoustic multiple-solitons in an electron–positron-ion plasma

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recommendations! Published in 2024 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-024-06289-8

Abstract: We explore the dynamic characteristics of positron acoustic multiple-solitons in an unmagnetized plasma containing mobile cold positrons, Kappa-distributed superthermal hot electrons and positrons, and stationary positive ions. This study investigates the overtaking collisional effects, various… read more here.

Keywords: positron; acoustic multiple; positron acoustic; positron ion ... See more keywords

Slab magnetised non-relativistic low-beta electron–positron plasmas: collisionless heating, linear waves and reconnecting instabilities

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recommendations! Published in 2017 at "Journal of Plasma Physics"

DOI: 10.1017/s0022377817000915

Abstract: The properties of a non-relativistic magnetised low-beta electron–positron plasma in slab geometry are investigated. The two species are taken to be drift kinetic while we retain Larmor radius effects in quasi-neutrality, and inertia in Ohm’s… read more here.

Keywords: low beta; beta electron; electron; electron positron ... See more keywords

Double Beltrami states and loss of equilibrium in electron, positron and ion plasmas

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recommendations! Published in 2019 at "Journal of Plasma Physics"

DOI: 10.1017/s0022377819000436

Abstract: It is shown that an electron, positron and ion plasma can be self-organized to a double Beltrami state – the superposition of two force-free states. The scale parameters which determine the nature of the self-organized… read more here.

Keywords: double beltrami; electron positron; positron ion; loss equilibrium ... See more keywords

Nonlinear modulation of arbitrary intense electromagnetic waves in magnetized electron–positron plasmas with temperature

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recommendations! Published in 2025 at "Journal of Plasma Physics"

DOI: 10.1017/s0022377825100391

Abstract: A theoretical framework has been established to investigate the modulational instability of electromagnetic waves in magnetized electron–positron plasmas. The framework is capable of analyzing electromagnetic waves of any intensity and plasmas at any temperature. A… read more here.

Keywords: waves magnetized; positron plasmas; electron positron; magnetized electron ... See more keywords

Double layers and solitary structures in electron-positron-ion plasma with Kappa distributed trapped electrons

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recommendations! Published in 2017 at "Physics of Plasmas"

DOI: 10.1063/1.4986990

Abstract: The effect of electron trapping in an electron-positron-ion plasma is modeled with κ-distributed electrons. The trapped electron number density is truncated to some finite order of the electrostatic potential Φ. Small amplitude solitary structures with… read more here.

Keywords: positron; double layers; positron ion; ion plasma ... See more keywords

Electron and positron interaction with pyrimidine: A theoretical investigation

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recommendations! Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.5024969

Abstract: Pyrimidine (C4H4N2) is considered as the building block of nucleobases, viz., cytosine, thymine and uracil. They provide a blueprint for probing the scattering of radiation by DNA and RNA bases. In this article, we report… read more here.

Keywords: positron; positron interaction; positron scattering; interaction pyrimidine ... See more keywords