Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Gakh, G. I."'
Manifestation of the heavy 3/2-spin lepton $(h^\pm)$, as possible virtual intermediate state in Feynmann diagrams, have been searched in the $e^+\,e^-\to \gamma\,\gamma$ reaction at high energies and large photon angles. The spin-vector field $\Psi_\
Externí odkaz:
http://arxiv.org/abs/2312.04870
The nonresonant mechanism in the reactions $e^+\,e^-\to \pi^-\,p\,\bar{n}$ and $e^+\,e^-\to \pi^+\,n\,\bar{p}$ is investigated in frame of the one-photon exchange approximation. The description of the hadronic phase space and the invariant amplitude
Externí odkaz:
http://arxiv.org/abs/2312.03578
The differential cross section and polarization observables for the elastic reaction induced by deuteron scattering off electrons at rest are calculated in the one-photon-exchange (Born) approximation. Specific attention is given to the kinematical c
Externí odkaz:
http://arxiv.org/abs/2311.01102
The dependence of the nucleon polarization in the reaction $e^+ + e^- \to N + \bar{N} +\pi^0 $ over different invariant variables in frame of the non-resonant mechanism, has been derived. The nucleon polarization is expressed in terms of six invarian
Externí odkaz:
http://arxiv.org/abs/2211.06656
The general analysis of the differential cross section and various polarization observables is performed for the process $e^+ + e^- \to N + \bar N +\pi^0 $ assuming that the annihilation occurs through the exchange of one virtual photon. The dependen
Externí odkaz:
http://arxiv.org/abs/2203.02388
Publikováno v:
Phys. Rev. D 101, 075049 (2020)
The triplet-like QED processes $\gamma + \ell_i \to \ell^+_j \ell^-_j + \ell_i$ with $i\neq j,$ and $i=e, \mu,$ $j=e, \mu,\tau$ has been investigated as the reactions where a dark photon, $A'$, is produced as a virtual state with subsequent decay int
Externí odkaz:
http://arxiv.org/abs/1911.03945
Publikováno v:
IJMPA, Vol.A34, No28 (2019)1950162
The polarization effects in the one-meson radiative decay of the polarized $\tau$ lepton, $\tau^-\to\pi^-\gamma\nu_{\tau}$, have been investigated. We present the analytical results for the $t-$distribution of the partial differential widths, which r
Externí odkaz:
http://arxiv.org/abs/1909.11949
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Publikováno v:
Phys. Rev. C 100, 025202 (2019)
General expressions for the unpolarized differential cross section and for various polarization observables in the coherent pseudoscalar meson photo- and electroproduction on the deuteron target have been obtained in one-photon-exchange approximation
Externí odkaz:
http://arxiv.org/abs/1810.12117
Publikováno v:
Phys. Rev. C 98, 045212 (2018)
The differential cross section for elastic scattering of deuterons on electrons at rest is calculated taking into account the QED radiative corrections to the leptonic part of interaction. These model-independent radiative corrections arise due to em
Externí odkaz:
http://arxiv.org/abs/1804.01399