Dark biportals at direct detection

Leonie Einfalt (Corresponding author), Suchita Kulkarni (Corresponding author), Massimiliano Procura (Corresponding author), Florian Reindl (Corresponding author)

Publications: Contribution to journalArticlePeer Reviewed


We present a study of the constraining power of low-threshold, high-resolution direct-detection experiments for a biportal simplified dark matter model. In the scenario we consider here, dark matter and Standard Model particles interact through two dark vector mediators - one light and one heavy with respect to the momentum transfer in the experiment. Interference effects at the level of scattering amplitudes can lead to novel marked shape features in the differential recoil spectra, which are best exploited by high-resolution, low-threshold experiments. We identify the region in parameter space for our model where such effects are dominant and show that composite-target experiments with large atomic mass differences are ideal to explore these scenarios. We develop a profile likelihood approach to analyze presently available and future data. Using published results by the CRESST-III experiment and projections of future sensitivities for the COSINUS experiment, we constrain the parameter space in our model, thereby showing the potential of such an analysis for a class of dark matter models that exhibit nonstandard features in the recoil spectra.
Original languageEnglish
Article number035031
Number of pages16
JournalPhysical Review D
Issue number3
Publication statusPublished - 29 Aug 2022

Austrian Fields of Science 2012

  • 103012 High energy physics
  • 103044 Cosmology

Cite this