Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Simple $U(1)$ Gauge Theory Explanation of the Diphoton Excess   The recent ATLAS and CMS diphoton resonance excesses are explored in a simple
$U(1)$ gauge theory extension of the Standard Model where the resonance is the
Higgs boson of the $U(1)$ symmetry breaking, $\phi$. This particle couples to
exotic quarks which, through loops, can produce a large enough rate to explain
the excess. Due to the choice of $U(1)$ charges, flavor constraints are
naturally suppressed, allowing arbitrary flavor violation in the decays of the
new quarks to up-type quarks, modifying their signal topologies. An additional
heavy quark in the model decays to the lighter exotic quark by emitting either
$\phi$ or the $U(1)$ gauge boson, $A_x$, giving extra signals containing
diphoton and digluon resonances. Finally, the new Higgs can decay into $\gamma
A_x$ and $Z A_x$, followed by $A_x$ decaying into Standard Model fermions
through kinetic mixing. Thus, this model gives interesting modified signals to
the general class of exotic quark models explaining the diphoton resonance.

31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg