Intensity variation of X-ray peaks in nGe detector

Dark matter is among the most important and long standing open problems in modern physics. Various dark matter candidates have been proposed by several models in support of the dark matter but till date dark matter candidate is not yet discovered. The Weakly Interacting Massive Particles (WIMPS) are the most accepted candidates for dark matter. TEXONO collaboration used Germanium ionization detectors, which is capable of observing rare weakly interacting particles by discriminating them from all known type of back-ground particles and radiations including low energy neutrons