72 citations · 211 across the 20 of their papers we have counts for
20 papers
Cosmic Birefringence as a probe of dark matter nature: Sterile neutrino and dipolar dark matter
Jafar Khodagholizadeh, S. Mahmoudi, R. Mohammadi +1
Recently, non-zero rotation angle [Phys. Rev. Lett. \textbf{128}, no.9, 091302 (2022)] has been reported for linear polarization of…
CMB Polarization by the Asymmetric Template of Scalar Perturbations
Jafar Khodagholizadeh, Rohoollah Mohammadi, S. M. S. Movahed
Inspired by a dipole asymmetric template for the CMB temperature map in the primordial scalar fluctuations observed by Planck at a large scale, we examine the contribution of a sim…
Impact of the vector dark matter on polarization of the CMB photon
S. Modares Vamegh, M. Haghighat, S. Mahmoudi +1
We consider a vector dark matter (VDM) with a direct coupling with photon. We examine the effect of such an interaction on the CMB polarization to put new constrains on the propert…
Circular polarization of cosmic photons due to their interactions with Sterile neutrino dark matter
M. Haghighat, S. Mahmoudi, R. Mohammadi +2
In this paper, we explore the possibility of the polarization conversion of a wide energy range of cosmic photons to the circular polarization through their interactions with right…
Probing Lorentz violation effects via a laser beam interacting with a high-energy charged lepton beam
Seddigheh Tizchang, Rohoollah Mohammadi, She-Sheng Xue
In this work, the conversion of linear polarization of a laser beam to circular one through its forward scattering by a TeV order charged lepton beam in the presence of Lorentz vio…
Dipolar dark matter and CMB B-mode polarization
S. Mahmoudi, M. Haghighat, S. Modares Vamegh +1
We consider dark matter as singlet fermionic particles which carrying magnetic dipole moment to explore its contribution on the polarization of cosmic microwave background (CMB) ph…
Generation of circular polarization in CMB radiation via nonlinear photon-photon interaction
Mehdi Sadegh, Rohoollah Mohammadi, Iman Motie
Standard cosmological models do predict a measurable amount of anisotropies in the intensity and linear polarization of the Cosmic Microwave Background radiation (CMB) via Thomson…
Generation of circular polarization of gamma ray bursts
S. Batebi, R. Mohammadi, R. Ruffini +2
The generation of the circular polarization of Gamma Ray Burst (GRB) photons is discussed in this paper via their interactions with astroparticles in the presence or absence of bac…
Using an intense laser beam in interaction with muon/electron beam to probe the Noncommutative QED
S. Tizchang, S. Batebi, M. Haghighat +1
It is known that the linearly polarized photons can partly transform to circularly polarized ones via forward Compton scattering in a background such as the external magnetic field…
Cosmic microwave background polarization in Noncommutative space-time
S. Batebi, M. Haghighat, R. Mohammadi +1
In the standard model of cosmology (SMC) the B-mode polarization of the CMB can be explained by the gravitational effects in the inflation epoch. However, this is not the only way…
The B-mode polarization of CMB and Cosmic Neutrino Background
Rohoollah Mohammadi, Jafar Khodagholizadeh, Mahdi Sadegh +1
It is known that in contrast with the E-mode polarization, the B-mode polarization of the Cosmic Microwave Background cannot be generated by the Compton scattering in the case of s…
Generation of CMB B-mode Polarization from Circular Polarization
Rohoollah Mohammadi, Moslem Zarei
In this work we consider non-zero circular polarization for the CMB radiation as a result of new interactions. We then rewrite the Boltzmann equations for the Stokes parameters …
Photon-neutrino scattering and the B-mode spectrum of CMB photons
Jafar Khodagholizadeh, Rohoollah Mohammadi, She-Sheng Xue
On the basis of the quantum Boltzmann equation governing the time-evolution of the density matrix of polarized CMB photons in the primordial scalar perturbations of metric, we calc…
Using strong intense lasers to probe sterile neutrinos
Pouya Bakhti, Rohoollah Mohammadi, She-Sheng Xue
A linearly polarized laser beam acquires its circular polarization by interacting with a neutrino beam for the reason that the gauge-couplings of left-handed neutrinos are parity-v…
Circular polarization from linearly polarized laser beam collisions
Rohoollah Mohammadi, Iman Motie, She-Sheng Xue
To probe the nonlinear effects of photon-photon interaction in the quantum electrodynamics, we study the generation of circular polarized photons by the collision of two linearly p…
Laser photons acquire circular polarization by interacting with a Dirac or Majorana neutrino beam
Rohoollah Mohammadi, She-Sheng Xue
It is shown that for the reason of neutrinos being left-handed and their gauge-couplings being parity-violated, linearly polarized photons acquire their circular polarization by in…
Neutrinos decoupled from -processes and supernova explosion
R. Mohammadi, Remo Ruffini, She-Sheng Xue
Based on the gravitational collapse time-scale is larger than the weak interaction time-scale at core densities , we approximately use the -equilibriu…
Nucleon-Nucleon Scattering in a Strong External Magnetic Field and the Neutrino Emissivity
E. Bavarsad, M. Haghighat, R. Mohammadi
The nucleon-nucleon scattering in a large magnetic background is considered to find its potential to change the neutrino emissivity of the neutron stars. For this purpose we consid…
Noncommutative QED+QCD and -function for QED
M. M. Ettefaghi, M. Haghighat, R. Mohammadi
QED based on -unexpanded noncomutative space-time in contrast with the noncommutative QED based on -expanded U(1) gauge theory via the Seiberg-Witten map, is one-loop renorma…
Generation of circular polarization of the CMB
E. Bavarsad, M. Haghighat, Z. Rezaei +3
According to the standard cosmology, near the last scattering surface, the photons scattered via Compton scattering are just linearly polarized and then the primordial circular pol…