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Interpreting the 750 GeV diphoton excess in the Minimal Dilaton Model | | Junjie Cao
; Liangliang Shang
; Wei Su
; Yang Zhang
; Jingya Zhu
; | | Date: |
11 Jan 2016 | | Abstract: | We try to interpret the 750 GeV diphoton excess in the Minimal Dilaton Model,
which extends the SM by adding one linearized dilaton field and vector-like
fermions. We first show by analytic formulae in this framework that the
production rates of the $gamma gamma$, $gg$, $Zgamma$, $ZZ$, $WW$,
$tar{t}$ and $hh$ signals at the $750 {
m GeV}$ resonance are only sensitive
to the dilaton-Higgs mixing angle $ heta_S$ and the parameter $eta equiv v
N_X/f$, where $f$ is the dilaton decay constant and $N_X$ denotes the number of
the fermions. Then we scan the two parameters by considering various
theoretical and experimental constraints to find the solutions to the diphoton
excess. We conclude that the model can predict the central value of the
diphoton rate without conflicting with any constraints. The signatures of our
explanation at the LHC Run II and the stability of the vacuum at high energy
scale are also discussed. | | Source: | arXiv, 1601.2570 | | Services: | Forum | Review | PDF | Favorites | |
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