Dark biportals at direct detection

Author(s)
Leonie Einfalt, Suchita Kulkarni, Massimiliano Procura, Florian Reindl
Abstract

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.

Organisation(s)
Particle Physics
External organisation(s)
Österreichische Akademie der Wissenschaften (ÖAW), Technische Universität Wien, Karl-Franzens-Universität Graz
Journal
Physical Review D
Volume
106
No. of pages
16
ISSN
2470-0010
DOI
https://doi.org/10.1103/PhysRevD.106.035031
Publication date
08-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics, 103044 Cosmology
ASJC Scopus subject areas
Nuclear and High Energy Physics
Portal url
https://ucrisportal.univie.ac.at/en/publications/dark-biportals-at-direct-detection(1dbb4fb1-fcb7-4b91-bc6d-6b54df48c7cd).html