paper

Pandax-4T limits on mass in 3-3-1LHN model

arXiv:2112.03963 · doi:10.1103/PhysRevD.106.015031

Abstract

The framework of the so-called 3-3-1LHN model may accommodate two different, but viable, scenarios of dark matter: one involving a heavy Dirac neutrino , , or another having a scalar, , as dark matter candidate. In both cases the dark matter phenomenology, relic abundance and scattering cross section off of nuclei, is controlled by exchange of . We then investigate the impact on the parameter space due to the recent Pandax-4T experimental result in both scenarios. First, the Pandax-4T experiment excludes scenarios with dark matter mass below TeV. Concerning , we find the lower bound TeV for the case when as the dark matter and TeV for the other case. This implies that the 3-3-1 symmetry is spontaneously broken above TeV scale. We also comment on the contributions to the relic abundance of processes involving flavor changing neutral current mediated by .

15 pages, 8 figures, Matches version accepted in Phys. Rev. D

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