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Title: Neutrino catalyzed diphoton excess

In this paper we explain the 750 GeV diphoton resonance observed at the run-2 LHC as a scalar singlet S, that plays a key role in generating tiny but nonzero Majorana neutrino masses. The model contains four electroweak singlets: two leptoquarks, a singly charged scalar and a neutral scalar S. Majorana neutrino masses might be generated at the two-loop level as S gets nonzero vacuum expectation value. S can be produced at the LHC through the gluon fusion and decays into diphoton with charged scalars running in the loop. The model fits perfectly with a narrow width of the resonance. Finally, constraints on the model are investigated, which shows a negligible mixing between the resonance and the standard model Higgs boson.
Authors:
ORCiD logo [1]
  1. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Physics. Amherst Center for Fundamental Interactions
Publication Date:
Grant/Contract Number:
SC0011095
Type:
Published Article
Journal Name:
Nuclear Physics. B
Additional Journal Information:
Journal Volume: 911; Journal ID: ISSN 0550-3213
Publisher:
Elsevier
Research Org:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1298328
Alternate Identifier(s):
OSTI ID: 1360103

Chao, Wei. Neutrino catalyzed diphoton excess. United States: N. p., Web. doi:10.1016/j.nuclphysb.2016.08.012.
Chao, Wei. Neutrino catalyzed diphoton excess. United States. doi:10.1016/j.nuclphysb.2016.08.012.
Chao, Wei. 2016. "Neutrino catalyzed diphoton excess". United States. doi:10.1016/j.nuclphysb.2016.08.012.
@article{osti_1298328,
title = {Neutrino catalyzed diphoton excess},
author = {Chao, Wei},
abstractNote = {In this paper we explain the 750 GeV diphoton resonance observed at the run-2 LHC as a scalar singlet S, that plays a key role in generating tiny but nonzero Majorana neutrino masses. The model contains four electroweak singlets: two leptoquarks, a singly charged scalar and a neutral scalar S. Majorana neutrino masses might be generated at the two-loop level as S gets nonzero vacuum expectation value. S can be produced at the LHC through the gluon fusion and decays into diphoton with charged scalars running in the loop. The model fits perfectly with a narrow width of the resonance. Finally, constraints on the model are investigated, which shows a negligible mixing between the resonance and the standard model Higgs boson.},
doi = {10.1016/j.nuclphysb.2016.08.012},
journal = {Nuclear Physics. B},
number = ,
volume = 911,
place = {United States},
year = {2016},
month = {8}
}