Extra Higgs Boson and $Z'$ as Portals to Signatures of Heavy Neutrinos at the LHC
| Autor: | Accomando, Elena, Rose, Luigi Delle, Moretti, Stefano, Olaiya, Emmanuel, Shepherd-Themistocleous, Claire H. |
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| Rok vydání: | 2017 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP02(2018)109 |
| Popis: | In this paper, we discuss the potential of observing heavy neutrino ($\nu_h$) signatures of a $U(1)_{B-L}$ enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the Large Hadron Collider (LHC). We exploit the theoretical decay via a pair of heavy (non-SM-like) Higgs boson and $Z'$ production followed by $\nu_h \rightarrow l^\pm W^{\mp (*)}$ and $\nu_h \rightarrow \nu_l Z^{(*)}$ decays, ultimately yielding a $3l+2j+E_{T}^{\rm{miss}}$ signature and, depending upon how boosted the final state objects are, we define different possible selections aimed at improving the signal to background ratio in LHC Run 2 data for a wide range of heavy neutrino masses. Comment: 31 pages, 10 figures. arXiv admin note: text overlap with arXiv:1612.05977 |
| Databáze: | arXiv |
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