Speaker
Description
We investigate a left-right symmetric model respecting
$SU(3)_C \otimes SU(2)_L \otimes U(1)_L \otimes SU(2)_R \otimes U(1)_R$
local gauge symmetry. This model contains a large number of heavy
exotic particles including the full \textbf{27}-plet fermions of $E_6$.
In this fermion sector there are two fermions, one is Dirac-like and
another is Majorana-like, who are eligible to be dark matter (DM)
candidates giving rise to a two-component DM scenario. In order to deal
with a large DM-nucleon scattering cross-section we introduce a
dimension-6 effective four-fermi operator explaing the interaction
among Standard Model (SM) quarks and DM candidates. We constrain
the value of the coefficient of such an operator from the data of
the experiments like XENON or LUX. We also constrain our parameter
spaces using the recent PLANCK data.
