S, T, U parameters are redefined for the B-LSSM using pinch technique contributions to gauge boson self-energies and expressed as functions of B-LSSM parameters, with experimental constraints applied.
Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
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abstract
We study mono-Higgs signatures emerging in the $B-L$ supersymmetric standard model induced by new channels not present in the minimal supersymmetric standard model, i.e., via topologies in which the mediator is either a heavy $Z'$, with mass of ${\cal O}(2~{\rm TeV})$, or an intermediate $h'$ (the lightest CP-even Higgs state of $B-L$ origin), with mass of ${\cal O}(0.2~{\rm TeV})$. The mono-Higgs probe considered is the SM-like Higgs state recently discovered at the large hadron collider, so as to enforce its mass reconstruction for background reduction purposes. With this in mind, its two cleanest signatures are selected: $\gamma\gamma$ and $ZZ^*\to 4l$ ($l=e,~\mu$). We show how both of these can be accessed with foreseen energy and luminosity options using a dedicated kinematic analysis performed in presence of partonic, showering, hadronisation and detector effects.
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Mono-Z' events from Z' plus singlet Higgs production in the BLSSM-IS, with h' decaying to LSP dark matter pairs, yield a detectable leptonic signal independent of the specific DM candidate.
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$S, T, U$ Parameters in The B-LSSM
S, T, U parameters are redefined for the B-LSSM using pinch technique contributions to gauge boson self-energies and expressed as functions of B-LSSM parameters, with experimental constraints applied.
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Mono-Z' Signatures in the B-L Supersymmetric Standard Model at the LHC
Mono-Z' events from Z' plus singlet Higgs production in the BLSSM-IS, with h' decaying to LSP dark matter pairs, yield a detectable leptonic signal independent of the specific DM candidate.