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Detection of a surprisingly high flux of positron annihilation radiation from the inner galaxy has motivated the proposal that dark matter is made of weakly interacting light particles (possibly as light as the electron). This scenario is extremely hard to test in current high energy physics experiments. Here, however, we demonstrate that the current value of the electron anomalous magnetic moment already has the required precision to unambiguously test the light dark matter hypothesis. If confirmed, the implications for astrophysics are far-reaching.
The EW-$ u_R$ model was constructed in order to provide a seesaw scenario operating at the Electroweak scale $Lambda_{EW} sim 246$ GeV, keeping the same SM gauge structure. In this model, right-handed neutrinos are non-sterile and have masses of the
Dark matter, proposed decades ago as a speculative component of the universe, is now known to be the vital ingredient in the cosmos, eight times more abundant than ordinary matter, one quarter of the total energy density and the component which has c
We address the question of gravitino dark matter in the context of gauge mediated supersymmetry breaking models.
We present $psi$MSSM, a model based on a $U(1)_{psi}$ extension of the minimal supersymmetric standard model. The gauge symmetry $U(1)_{psi}$, also known as $U(1)_N$, is a linear combination of the $U(1)_chi$ and $U(1)_psi$ subgroups of $E_6$. The mo
We consider the possibility of using dark matter particles mass and its interaction cross section as a smoking gun signal of the existence of a Big Bounce at the early stage in the evolution of our currently observed universe. A study of dark matter