Direct WIMP detection rates in 83Kr and 125Te

Presently, there exists plenty of evidence of the existence of dark matter. One of the candidate constituents for dark matter is the weakly interacting massive particle (WIMP), motivated by various theoretical models going beyond the standard model. Currently, there are many experimental setups which search for the WIMP signal. In the recent work [1] we analyzed the possibility to use 83Kr as a detector material. The nucleus 83Kr would offer strong kinematic advantages over many other nuclei in the inelastic channel, due to its very low-lying excited state. We found that 83Kr would make a feasible detector material, although the nuclear-structure considerations seem to slightly weaken the promise of the nucleus as a WIMP target. Recently we have extended this work to 125Te target nucleus and specified the WIMP to be the supersymmetry-predicted stable particle, LSP (lightest supersymmetric particle) [2,3].

[1] J. D. Vergados, F. T. Avignone III, P. Pirinen, P. C. Srivastava, M. Kortelainen and J. Suhonen, Phys. Rev. D 92 (2015) 015015
[2] P. Pirinen, P. C. Srivastava, J. Suhonen and M. Kortelainen, Phys. Rev. D 93 (2016) 095012
[3] J. D. Vergados, F. T. Avignone III, M. Kortelainen, P. Pirinen, P. C. Srivastava, J. Suhonen and A. W. Thomas, J. Phys. G: Nucl. Part. Phys. 43 (2016) 115002