4 papers
Polarization of the CMB in the Standard Model Extension
Iman Motie, Jafar Khodagholizadeh, S. Mahmoudi +2
In standard cosmology, Cosmic Microwave Background photons near the last scattering surface exhibit only linear polarization due to Compton scattering, leading to the assumption th…
Generation of the CMB cosmic Birefringence through Axion-like particles, Sterile and Active neutrinos
Somayyeh Mahmoudi, Mahdi Sadegh, Jafar Khodagholizadeh +3
The cosmic birefringence (CB) angle refers to the rotation of the linear polarization plane of Cosmic Microwave Background (CMB) radiations when parity-violating theories are consi…
Muon anomalous magnetic moment and Right handed sterile neutrino
Iman Motie, S. Mahmoudi, Mahdi Sadegh +3
The muon's magnetic moment is a fundamental quantity in particle physics and the deviation of its value from quantum electrodynamics (QED), motivates research beyond the standard m…
Noether gauge symmetry approach applying for the non-minimally coupled gravity to the Maxwell field
S. Mahmoudi, S. Hajkhalili, S. H. Hendi
Taking the Noether gauge symmetry approach into account, we find spherically symmetric static black hole solutions of the non-minimal gauge-gravity Lagrangian of the $\mathcal{R}^β…