Abstract
Dark Matter problem which is one of the most important subject in nature science has not been revealed yet, and the most important method to directly understand that is the direct dark matter detection. As new approach in this field, direction sensitive dark matter search with super-high resolution nuclear emulsions is proposed. Nano-imaging tracker (NIT) which is fine-grained nuclear emulsion has been originally developed in the Nagoya University, and the detection and the readout for submicron-length tracks that is expected as the signal due to WIMP dark matter was demonstrated. Now, this is promoted as the NEWSdm international collaboration, and studying about the background and its rejection method, and new readout system to obtain 10 nm scale information for the signals is studied. Also, first pilot experiment as background run is constructed in the Gran Sasso National Laboratory (LNGS), Italy.
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