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Related papers: Interpreting a 750 GeV Diphoton Resonance

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We study kinematic distributions that may help characterise the recently observed excess in diphoton events at 750 GeV at the LHC Run 2. Several scenarios are considered, including spin-0 and spin-2 750 GeV resonances that decay directly…

High Energy Physics - Phenomenology · Physics 2016-05-23 Jérémy Bernon , Andreas Goudelis , Sabine Kraml , Kentarou Mawatari , Dipan Sengupta

We propose two simple quirk models to explain the recently reported 750 GeV diphoton excesses at ATLAS and CMS. It is already well-known that a real singlet scalar $\phi$ with Yukawa couplings $\phi \bar X X$ to vector-like fermions $X$…

High Energy Physics - Phenomenology · Physics 2016-03-10 David Curtin , Christopher B. Verhaaren

We propose an NMSSM scenario that can explain the excess in the diphoton spectrum at 750 GeV recently observed by ATLAS and CMS. We show that in a certain limit with a very light pseudoscalar one can reproduce the experimental results…

High Energy Physics - Phenomenology · Physics 2016-05-25 F. Domingo , S. Heinemeyer , J. S. Kim , K. Rolbiecki

An evidence for a diphoton resonance at a mass of 750 GeV has been observed in the data collected at the LHC run at a center of mass energy of 13 TeV. We explore several interpretations of this signal in terms of Higgs-like resonances in a…

High Energy Physics - Phenomenology · Physics 2016-03-09 Andrei Angelescu , Abdelhak Djouadi , Grégory Moreau

We try to interpret the 750 GeV diphoton excess in the Minimal Dilaton Model, which extends the SM by adding one linearized dilaton field and vector-like fermions. We first show by analytic formulae in this framework that the production…

High Energy Physics - Phenomenology · Physics 2016-05-04 Junjie Cao , Liangliang Shang , Wei Su , Yang Zhang , Jingya Zhu

We explore the possibility of a beyond the standard model scalar ($\phi$) as a possible explanation of the diphoton resonance at 750~GeV invariant mass reported by the ATLAS and CMS collaborations at the large hadron collider (LHC). We…

High Energy Physics - Phenomenology · Physics 2016-04-21 Shrihari Gopalakrishna , Tuhin Subhra Mukherjee

In this paper we explain the diphoton excess in the invariant mass M $\approx$ 750 GeV , claimed by the ATLAS and CMS collaborations at the run-2 LHC, as the signal of a scalar singlet in a string inspired exceptional supersymmetric…

High Energy Physics - Phenomenology · Physics 2016-01-05 Wei Chao

We consider minimal effective interactions of the 750 GeV mass resonance observed recently by ATLAS and CMS. Assuming a new scalar and gauge invariant effective interactions leads to non-trivial two particle scattering amplitudes with…

High Energy Physics - Phenomenology · Physics 2016-07-12 G. Cynolter , J . Kovács , E. Lendvai

We consider the diphoton resonance at the 13 TeV LHC in a consistent model with new scalars and vector-like fermions added to the Standard Model (SM), which can be constructed from orbifold grand unified theories and string models. The…

High Energy Physics - Phenomenology · Physics 2016-03-30 Bhaskar Dutta , Yu Gao , Tathagata Ghosh , Ilia Gogoladze , Tianjun Li

A new heavy resonance may be observable at the LHC if it has a significant decay branching fraction into a pair of photons. We entertain this possibility by looking at the modest excess in the diphoton invariant mass spectrum around 750 GeV…

High Energy Physics - Phenomenology · Physics 2017-01-17 Amine Ahriche , Gaber Faisel , Salah Nasri , Jusak Tandean

The recently reported diphoton excess at the LHC may imply the existence of a new resonance with a mass of about 750 GeV which couples to photons via loops of new charged particles. In this letter, we study the possibility to test such…

High Energy Physics - Phenomenology · Physics 2016-06-29 Kyu Jung Bae , Koichi Hamaguchi , Takeo Moroi , Keisuke Yanagi

We analyze the Large Hadron Collider sensitivity to new pseudoscalar resonances decaying into diphoton with masses up to scales of few TeVs. We focus on minimal scenarios where the production mechanisms involve either photon or top-mediated…

High Energy Physics - Phenomenology · Physics 2016-08-15 Emiliano Molinaro , Francesco Sannino , Natascia Vignaroli

The data collected by the LHC collaborations at an energy of 13 TeV indicates the presence of an excess in the diphoton spectrum that would correspond to a resonance of a 750 GeV mass. The apparently large production cross section is…

High Energy Physics - Phenomenology · Physics 2016-09-21 Aoife Bharucha , Abdelhak Djouadi , Andreas Goudelis

Weakly-coupled models for the 750 GeV diphoton resonance often invoke new particles carrying both color and/or electric charges to mediate loop-induced couplings of the resonance to two gluons and two photons. The new colored particles may…

High Energy Physics - Phenomenology · Physics 2016-08-03 Kyu Jung Bae , Chuan-Ren Chen , Koichi Hamaguchi , Ian Low

It has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained minimal supersymmetric standard model via resonantly produced stop bound states. We reanalyze this scenario critically and extend…

High Energy Physics - Phenomenology · Physics 2016-09-14 Herbi K. Dreiner , Manuel E. Krauss , Ben O'Leary , Toby Opferkuch , Florian Staub

The observed excess in the diphoton mass spectrum around 750 GeV at the 13 TeV LHC possibly indicates the presence of a photonphilic resonance. We show that the excess can be explained by a scalar of the type involved in Bekenstein's…

High Energy Physics - Phenomenology · Physics 2016-05-19 Tanumoy Mandal , Ulf Danielsson , Rikard Enberg , Gunnar Ingelman

We investigate the 750 GeV diphoton excess in terms of supersymmetric models which preserve grand unification in the ultraviolet. We show that minimal extensions of the MSSM by a singlet and a vector-like 5-plet or 10-plet of SU(5) can…

High Energy Physics - Phenomenology · Physics 2016-06-29 Hans Peter Nilles , Martin Wolfgang Winkler

The excess seen in the diphoton channel at around 750 GeV by both ATLAS and CMS has caused a great deal of excitement in the particle physics community. However, there has recently been much discussion about uncertainties in the…

High Energy Physics - Phenomenology · Physics 2016-02-22 Bradley J. Kavanagh

We propose a possible explanation of the recent diphoton excess reported by ATLAS and CMS collaborations, at around 750 GeV diphoton invariant mass, within the framework of $E_{6}$ motivated Alternative Left-Right Symmetric Model (ALRSM),…

High Energy Physics - Phenomenology · Physics 2016-04-06 Chandan Hati

We interpret the 750~GeV diphoton excess recently found in the 13~TeV LHC data as a singlet scalar in an extra dimensional model, where one extra dimension is introduced. In the model, the scalar couples to multiple vector-like fermions,…

High Energy Physics - Phenomenology · Physics 2016-04-28 Chengfeng Cai , Zhao-Huan Yu , Hong-Hao Zhang