TY  - JOUR
AU  - De Romeri, V.
AU  - Fernandez-Martinez, E.
AU  - Gehrlein, J.
AU  - Machado, P. A. N.
AU  - Niro, V.
PY  - 2017
DA  - 2017//
TI  - Dark Matter and the elusive Z' in a dynamical Inverse Seesaw scenario
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 169
EP  - 21pp
VL  - 10
IS  - 10
PB  - Springer
KW  - Beyond Standard Model
KW  - Neutrino Physics
AB  - 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.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1707.08606
UR  - https://doi.org/10.1007/JHEP10(2017)169
DO  - 10.1007/JHEP10(2017)169
LA  - English
N1  - WOS:000414811300001
ID  - DeRomeri_etal2017
ER  -