Generalized blind spots for dark matter direct detection in the 2HDM
ME Cabrera, JA Casas, A Delgado, S Robles
The Journal of High Energy Physics | SPRINGER | Published : 2020
In this paper we study the presence of generalized blind spots, i.e. regions of the parameter space where the spin-independent cross section for dark matter direct detection is suppressed, in the context of a generic 2HDM and a minimal fermionic Higgs-portal dark sector. To this end, we derive analytical expressions for the couplings of the dark matter to the light and heavy Higgses, and thus for the blind spot solutions. Unlike the case of a standard Higgs sector, blind spots can occur even without a cancellation between different contributions, while keeping unsuppressed and efficient the annihilation processes in the early Universe involving Higgs states. As a consequence, the allowed par..View full abstract
Awarded by Spanish Agencia Estatal de Investigacion through the grant "FT Centro de Excelencia Severo Ochoa"
Awarded by MINECO
Awarded by National Science Foundation
The work of JAC has been partially supported by Spanish Agencia Estatal de Investigaci~on through the grant \IFT Centro de Excelencia Severo Ochoa SEV-2016-0597"and by MINECO project FPA 2016-78022-P. The work of AD was partially supported by the National Science Foundation under grant PHY-1820860. SR was supported by the Australian Research Council. We thank Andrew Cheek for providing us with the RAPIDD tool tailored to XENON1T.