PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T03: Dark Matter
Nuclear Emulsions for WIMP Search with a directional measurement
G. De Lellis
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Pre-published on: January 12, 2022
Published on: May 12, 2022
The nature of dark matter (DM) is one of the most relevant open problems both in cosmology and in particle physics. Many different experimental techniques have been developed to detect Weakly Interactive Massive Particles (WIMPs) as dark matter candidates via their scattering with detector atoms. The NEWSdm experiment, located in the Gran Sasso underground laboratory in Italy, is based on a novel nuclear emulsion technology with nanometric resolution and new emulsion scanning microscopy that can detect recoil track lengths shorter than one hundred nanometers. NEWSdm is able to reconstruct the direction of the nucleus recoiling, thus being capable of confirming the Galactic origin of the dark matter. We discuss the potentiality, both in terms of exclusion limits and discovery potential, of a directional experiment based on the use of a solid target made by newly developed nuclear emulsions and read-out systems reaching nanometric resolution. We also report the technological achievements and the measurement plan at Gran Sasso.
DOI: https://doi.org/10.22323/1.398.0157
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