Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vector-Like Exotics in F-Theory and 750 GeV Diphotons   The recent excess in diphoton events around 750 GeV seen by the ATLAS and CMS
experiments could be hinting at the existence of new vector-like charged matter
around the TeV scale which couples to a singlet. Such a spectrum of exotics
arises inevitably in certain classes of F-theory GUTs with hypercharge flux
when the GUT symmetry is extended by a U(1) symmetry under which the Higgs
fields of the MSSM are not vector-like. The exotics are not vector-like under
the U(1) symmetry and therefore their mass is naturally related to its breaking
scale. Previously this scale was taken to be close to the GUT scale which led
to tension with proton decay, the $\mu$-term magnitude, and too large R-parity
violation. The 750 GeV excess provides new motivation for considering breaking
the U(1) around the TeV scale, which additionally alleviates the previous
problems. We study the possible TeV-scale spectrum in such an SU(5) GUT
scenario and show that it is constrained and predictive. Gauge coupling
unification can be retained at the accuracy of the MSSM at one loop even though
typically the spectrum does not form complete GUT representations. For example
the exotics cannot form a complete 10 multiplet but nonetheless happen to
behave as one in the beta functions. We present an initial analysis of the
diphoton production rates for the exotics spectra and find them compatible with
data.

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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: alg-geom