%0 Journal Article
%T Dark Matter and the elusive Z' in a dynamical Inverse Seesaw scenario
%A De Romeri, V.
%A Fernandez-Martinez, E.
%A Gehrlein, J.
%A Machado, P. A. N.
%A Niro, V.
%J Journal of High Energy Physics
%D 2017
%V 10
%N 10
%I Springer
%@ 1029-8479
%G English
%F DeRomeri_etal2017
%O WOS:000414811300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3357), last updated on Tue, 21 Nov 2017 12:30:40 +0000
%X The Inverse Seesaw naturally explains the smallness of neutrino masses via an approximate B-L symmetry broken only by a correspondingly small parameter. In this work the possible dynamical generation of the Inverse Seesaw neutrino mass mechanism from the spontaneous breaking of a gauged U(1) B-L symmetry is investigated. Interestingly, the Inverse Seesaw pattern requires a chiral content such that anomaly cancellation predicts the existence of extra fermions belonging to a dark sector with large, non-trivial, charges under the U(1) B-L. We investigate the phenomenology associated to these new states and find that one of them is a viable dark matter candidate with mass around the TeV scale, whose interaction with the Standard Model is mediated by the Z' boson associated to the gauged U(1) B-L symmetry. Given the large charges required for anomaly cancellation in the dark sector, the B-L Z' interacts preferentially with this dark sector rather than with the Standard Model. This suppresses the rate at direct detection searches and thus alleviates the constraints on Z'-mediated dark matter relic abundance. The collider phenomenology of this elusive Z' is also discussed.
%K Beyond Standard Model
%K Neutrino Physics
%R 10.1007/JHEP10(2017)169
%U http://arxiv.org/abs/1707.08606
%U https://doi.org/10.1007/JHEP10(2017)169
%P 169-21pp