The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model

Johar M. Ashfaque

paper

The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model

arXiv:1607.03076

Abstract

The production and the subsequent decay of the SM singlet via heavy vector--like colour triplets and electroweak doublets in one--loop diagrams can shed light on the recent observation of diphoton excess at the LHC. In this paper, the $E_{6}$ GUT is considered in the F-theory setting where the $E_{6}$ is broken by making use of the spectral cover construction and by turning on the hypercharge gauge flux. This paper is based on the results presented in \cite{Athanasopoulos:2014bba, Faraggi:2016xnm, Ashfaque:2016jha} which will be reviewed briefly. Here, by following the F-theory approach, akin to \cite{Karozas:2016hcp, Leontaris:2016wsy, Das:2016xuc}, we present a study of the flipped $S O (10)$ model embedded completely in the $E_{6}$ GUT but with a different accommodation of the SM representations in the $27$ of $E_{6}$ .

arXiv comment9 pages

The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model

Abstract

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