Probing spin-dependent dark matter interactions with $^6$Li
Abstract
CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c mass. One of the advantages of the CRESST experiment is the possibility to include a large variety of nuclides in the target material used to probe dark matter interactions. In this work, we discuss in particular the interactions of dark matter particles with protons and neutrons of Li. This is now possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO and operated in an above ground test-facility at Max-Planck-Institut f\"ur Physik in Munich, Germany. In particular, the inclusion of Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c, compared to the limit previously published with the same data.
Cite
@article{arxiv.2201.03863,
title = {Probing spin-dependent dark matter interactions with $^6$Li},
author = {G. Angloher and G. Benato and A. Bento and E. Bertoldo and A. Bertolini and R. Breier and C. Bucci and L. Canonica and A. D'Addabbo and S. Di Lorenzo and L. Einfalt and A. Erb and F. v. Feilitzsch and N. Ferreiro Iachellini and S. Fichtinger and D. Fuchs and A. Fuss and A. Garai and V. M. Ghete and P. Gorla and S. Gupta and D. Hauff and M. Ješkovský and J. Jochum and M. Kaznacheeva and A. Kinast and H. Kluck and H. Kraus and A. Langenkämper and M. Mancuso and L. Marini and V. Mokina and A. Nilima and M. Olmi and T. Ortmann and C. Pagliarone and V. Palušová and L. Pattavina and F. Petricca and W. Potzel and P. Povinec and F. Pröbst and F. Pucci and F. Reindl and J. Rothe and K. Schäffner and J. Schieck and D. Schmiedmayer and S. Schönert and C. Schwertner and M. Stahlberg and L. Stodolsky and C. Strandhagen and R. Strauss and I. Usherov and F. Wagner and M. Willers and V. Zema},
journal= {arXiv preprint arXiv:2201.03863},
year = {2022}
}