Abstract:
we propose a possible explanation for the recent diphoton excess reported by ATLAS and CMS Collaborations at around a 750 GeV diphoton invariant mass within the framework of the
E
6
-motivated alternative left-right symmetric model, which is capable of addressing the
B
decay anomalies in the flavor sector, the
e
e
j
j
and
e
p
T
j
j
excesses reported by CMS in run 1 of the LHC, and high-scale leptogenesis. We find that gluon-gluon fusion can give the observed production rate of the 750 GeV resonance,
˜
n
, through a loop of scalar leptoquarks (
˜
h
(
c
)
) with a mass below a few TeV range, while
˜
n
can subsequentlydecayintoaγγfinalstatevialoopsof˜h(c)and˜E(c).Interestingly, the slepton (˜E(c))loop can enhance the diphoton branching ratio significantly to successfully explain the observed cross section of the diphoton signal