The Dark Matter Search at Jaduguda Underground Science Laboratory

2025/08/31 by Kumar, Vimal, Das, Susmita, Das, Mala
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.2509.00873

Abstract

The first run for the dark matter direct search experiment at Jaduguda Underground Science Laboratory is presented in this article. The experiment named InDEx; the Indian Dark matter search Experiment has been initiated with superheated emulsion detector consisting of the droplets of tetrafluoroethane (C₂H₂F₄). The detector ran for an effective period of 48.6 days at a threshold of 5.87 keV with an exposure of 2.47 kg-days. It is observed that the minimum sensitivity for the SI cross-section of [7.939±(0.375)_statistical(^+1.386_-0.909)_systematic]× 10^-39 cm² for fluorine appears at WIMP mass of 30.67 GeV/c². The InDEx with larger exposures is under development and yet to come in near future.

Citations

• Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
• Direct detection of WIMP dark matter: concepts and status
• Review of mathematics, numerical factors, and corrections for dark matter experiments based on elastic nuclear recoil

Related

• Dark matter direct search result from InDEx run2 at JUSL
• First result from tetrafluoroethane (C₂H₂F₄) superheated emulsion detector for dark matter search at JUSL
• Snowmass 2021 Underground Facilities for the Cosmic Frontier Topical Report
• Physics at Underground Laboratories: Direct Detection of Dark Matter
• First direction sensitive search for dark matter with a nuclear emulsion detector at a surface site