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Dark Matter Spin Characterisation in Mono-Z Channels

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arxiv 1907.08358 v2 pith:EWVB7CDN submitted 2019-07-19 hep-ph hep-ex

Dark Matter Spin Characterisation in Mono-Z Channels

classification hep-ph hep-ex
keywords blssmdarklightestmattermono-spinamongstcandidates
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The $B-L$ Supersymmetric Standard Model (BLSSM) is an ideal testing ground of the spin nature of Dark Matter (DM) as it offers amongst its candidates both a spin-1/2 (the lightest neutralino) and spin-0 (the lightest right-handed sneutrino) state. We show that the mono-$Z$ channel can be used at the Large Hadron Collider (LHC) to diagnose whether a DM signal is characterised within the BLSSM by a fermionic or (pseudo)scalar DM particle. Sensitivity to either hypothesis can be obtained after only 100 fb$^{-1}$ of luminosity following Runs 2 and 3 of the LHC.

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