Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetries Behind the 750 GeV Diphoton Excess   A 750 GeV resonance has been observed at the Run 2 LHC in the diphoton
channel. In this paper, we explain this resonance as a CP-even scalar, S, that
triggers the spontaneous breaking of local $U(1)_B$ or $U(1)_{B+L}$ gauge
symmetries. S couples to gluon and photon pairs at the one-loop level, where
particles running in the loop are originally introduced to cancel anomalies.
The gluon fusion is the dominate production channel of S at the LHC. The model
automatically contains a scalar dark matter candidate, stabilized by the new
gauge symmetry. Our study shows that both the observed production cross section
at the LHC and the best fit decay width of S can be explained in this concrete
model, without conflicting with any experimental data. Constraints on couplings
of S are studied, which shows a negligible mixing with the standard model Higgs
boson but sizable coupling with the dark matter.

12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int