Looking amongst the neutrinos for lightweight dark matter in the NOvA Near Detector
February 11, 2017
April 19, 2017
The NOvA long-baseline neutrino oscillation experiment is getting record numbers of 120GeV protons on target from Fermilab's NuMI neutrino beam. We take advantage of the sophisticated particle identification algorithms of the experiment to search for Lightweight Dark Matter (LDM) in the first year of data from the 300-ton, off-axis, low-Z, Near Detector of NOvA during the experiment’s first physics runs. LDM models predict that under-10 GeV candidates produced in the NuMI target might scatter or decay in the Near Detector. We simulate an example of the Neutral Vector Portal model with the sensitivity estimate of 10^(-39) cm^2, which corresponds to O(10) LDM candidates per three years of data, looking at single EM showers between 5 and 15 GeV in a model independent way.
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