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- W2280497632 abstract "Recently the ATLAS and CMS collaborations at the LHC announced their observation of a potential 750 GeV di-photon resonance, after analyzing the $sqrt{s}=13$ TeV LHC data. This observation has significant implications for low-energy supersymmetry. Beyond the MSSM and the NMSSM, we study the MSSM-extensions with an extra $U(1)'$ gauge symmetry. The anomaly cancellation and the spontaneous breaking of the non-decoupled $U(1)'$ generically require introducing vector-like supermultiplets (both colored and color-neutral ones) and singlet supermultiplets, respectively. We illustrate that the potential 750 GeV resonance ($Y$) can be accommodated in various mechanisms, as a singlet-like scalar or pseudoscalar. Three benchmark scenarios are presented: (1) vector-like quarks (VLQ) mediated $pp to Y to gamma gamma$; (2) scalar VLQ mediated $pp to Y to gamma gamma$; (3) heavy scalar (pseudo-scalar) $H/A$ associated production $pp to H^*/A^* to Y H/h$. Additionally, we notice that the $Z'$-mediated vector boson fusion production and $Z'$-associated production $pp to Y qq'$, if yielding a signal rate of the observed level, might have been excluded by the searches for $Z'$ via Drell-Yan process at the LHC." @default.
- W2280497632 created "2016-06-24" @default.
- W2280497632 creator A5052503561 @default.
- W2280497632 creator A5068896836 @default.
- W2280497632 creator A5079286679 @default.
- W2280497632 date "2016-08-01" @default.
- W2280497632 modified "2023-10-14" @default.
- W2280497632 title "750 GeV resonance in the gauged U(1)′-extended MSSM" @default.
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