arXiv subjects

Mehrdad Adibzadeh

Publications and source records attributed to Mehrdad Adibzadeh.

5 recordsLinked to original sources

arXiv2026

Spin asymmetry for the elastic scattering of polarized electrons from Zn, Cd, and Hg

We present an extensive set of theoretical results for spin asymmetry in the form of Sherman functions for the elastic scattering of electrons by zinc, cadmium, and mercury. This study extends the application of our earlier method of calculations, which we previously employed for stable inert gases and alkaline-earth-metals to these three atoms. Our predictions are in adequate agreement with experimental values and precise theoretical results.

physics.atom-ph↗

arXiv2026

Elastic electron scattering from Zn, Cd, and Hg

We present an extensive set of theoretical results for differential, integrated, and momentum transfer cross sections for the elastic scattering of electrons by zinc, cadmium, and mercury. This study extends the application of our method of calculations, previously employed for stable inert gases and alkaline-earth-metals. Our approach is a self-consistent calculation, with a semi-empirical element in the adjustable cut-off radius of the polarization potential. Our method is expected to provide a set of accurate data for Zn, Cd and Hg, based on the satisfactory agreement in our previous investigations with experimental values and other precise theoretical results.

physics.atom-ph↗

arXiv2024

Elastic electron scattering from Be, Mg, and Ca

We present a comprehensive set of theoretical results for differential, integrated, and momentum transfer cross sections for the elastic scattering of electrons by beryllium, magnesium and calcium, at energies below 1 keV. In addition, we provide Sherman function values for elastic electron scattering from calcium in the same energy range. This study extends the application of our method of calculations, already employed for barium and strontium, to all stable alkaline-earth-metal atoms. Our semi-empirical approach to treating target polarization has produced in our earlier work a satisfactory agreement with experimental values and precise theoretical results such as convergent close-coupling calculations for barium. The present data are expected to be of similar high accuracy, based on our previous success in similar calculations for barium and all inert gases.

physics.atom-ph↗

arXiv2008

The relic density of shadow dark matter candidates

We present the results of relic density calculations for cold dark matter candidates coming from a model of dark energy and dark matter, which is described by an asymptotically free gauge group SU(2)_Z (QZD) with a coupling constant alpha_Z ~ 1 at very low scale of Lambda_Z ~ 10^(-3) eV while alpha_Z ~ weak coupling at high energies. The dark matter candidates of QZD are two fermions in the form of weakly interacting massive particles. Our results show that for masses between 50 and 285 GeV, they can account for either a considerable fraction or the entire dark matter of the Universe.

astro-ph↗

arXiv2007

Quark-lepton mass unification at TeV scales

A scenario combining a model of early (TeV) unification of quarks and leptons with the physics of large extra dimensions provides a natural mechanism linking quark and lepton masses at TeV scale. This has been dubbed as early quark-lepton mass unification by one of us (PQH) in one of the two models of early quark-lepton unification, which are consistent with data, namely SU(4)_PS \otimes SU(2)_L \otimes SU(2)_R \otimes SU(2)_H. In particular, it focused on the issue of naturally light Dirac neutrino. The present paper will focus on similar issues in the other model, namely SU(4)_PS \otimes SU(3)_L \otimes SU(3)_H.

hep-ph↗