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Related papers: Interpreting $750$ GeV Diphoton Excess with R-pari…

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We explain the recent excess seen by ATLAS and CMS experiments at around 750 GeV in the di-photon invariant mass as a narrow width sneutrino decaying to di-photons via a stau loop in R-parity violating Supersymmetry. The stau mass is…

High Energy Physics - Phenomenology · Physics 2016-06-20 B. C. Allanach , P. S. Bhupal Dev , S. A. Renner , Kazuki Sakurai

We propose an explanation of the LHC data excess resonance of 750 GeV in the diphoton distribution using D-brane models, with gauged baryon number, which accommodate the Standard Model together with vector like exotics. We identify the 750…

High Energy Physics - Phenomenology · Physics 2016-08-03 Christos Kokorelis

Motivated by the recent excess in the diphoton invariant mass near 750 GeV, we explore a supersymmetric extension of the Standard Model that includes the minimal set of superpartners as well as additional Dirac partner chiral superfields in…

High Energy Physics - Phenomenology · Physics 2016-08-03 Timothy Cohen , Graham D. Kribs , Ann E. Nelson , Bryan Ostdiek

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

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

We discuss a possibility to explain the 750 GeV diphoton excess observed at the LHC in a three-loop neutrino mass model which has a similar structure to the model by Krauss, Nasri and Trodden. Tiny neutrino masses are naturally generated by…

High Energy Physics - Phenomenology · Physics 2016-04-20 Hiroshi Okada , Kei Yagyu

Recent results from the experimental collaborations at LHC give hints of a resonance in the diphoton channel at an invariant mass of 750 GeV. We show that such a scalar resonance would be possible in an $U(1)$ extension of the SM where the…

High Energy Physics - Phenomenology · Physics 2016-05-18 Kasinath Das , Santosh Kumar Rai

We propose a simple model accommodating the reported 750 GeV diphoton excess seen in the first 13-TeV run of the LHC. It leads to testable predictions, in particular for di-lepton production, at higher integrated luminosity. We append to…

High Energy Physics - Phenomenology · Physics 2016-09-01 Thomas Appelquist , James Ingoldby , Maurizio Piai , Jedidiah Thompson

We propose a new type of radiative neutrino model with a local hidden $U(1)$ symmetry, in which neutrino masses are induced at the three loop level, and discuss the muon anomalous magnetic moment, and dark matter candidates therein. By…

High Energy Physics - Phenomenology · Physics 2016-07-20 P. Ko , Takaaki Nomura , Hiroshi Okada , Yuta Orikasa

We discuss the implications of the significant excesses in the diphoton final state observed by the LHC experiments ATLAS and CMS around a diphoton invariant mass of 750 GeV. The interpretation of the excess as a spin-zero s-channel…

High Energy Physics - Phenomenology · Physics 2016-08-02 Rick S. Gupta , Sebastian Jäger , Yevgeny Kats , Gilad Perez , Emmanuel Stamou

The LHC diphoton excess 750 GeV is discussed in a string-inspired standard-like model. Precisely, a singlet scalar-extended SM from a vacua of four stacks of intersecting D6-branes giving rise to a large gauge symmetry is considered.…

High Energy Physics - Phenomenology · Physics 2016-06-15 Adil Belhaj , Salah-Eddine Ennadifi

We show that the recently observed 750 GeV diphoton excess at LHC can be due to the decay of a $SU(2)_L$ singlet scalar particle having 3 units of charge under gauged $B - L$ symmetry. Such a particle arises as an essential ingredient of…

High Energy Physics - Phenomenology · Physics 2016-06-10 Tanmoy Modak , Soumya Sadhukhan , Rahul Srivastava

We show that a 750 GeV di-photon excess as reported by the ATLAS and CMS experiments can be reproduced by the Minimal Dirac Gaugino Supersymmetric Standard Model (MDGSSM) without the need of any ad-hoc addition of new states. The scalar…

High Energy Physics - Phenomenology · Physics 2016-09-21 Karim Benakli , Luc Darmé , Mark D. Goodsell , Julia Harz

Non-observation of superpartners of the Standard Model particles at the early runs of the LHC provide strong motivation for an $R$-symmetric minimal supersymmetric Standard Model, or MRSSM. This model also comes with a pair of extra scalars…

High Energy Physics - Phenomenology · Physics 2016-08-17 Sabyasachi Chakraborty , Amit Chakraborty , Sreerup Raychaudhuri

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

Interpreting the diphoton mass excesses near 750~GeV reported by ATLAS and CMS as pseudoscalar gluinonia, bound states of two gluinos, we perform a scan in Next-to-Minimal Supersymmetry parameter space, fixing $m_{\tilde{g}}\approx 380$~GeV…

High Energy Physics - Phenomenology · Physics 2016-06-29 C. T. Potter

We explore several perturbative scenarios in which the di-photon excess at 750 GeV can potentially be explained: a scalar singlet, a two Higgs doublet model (2HDM), a 2HDM with an extra singlet, and the decays of heavier resonances, both…

High Energy Physics - Phenomenology · Physics 2016-06-01 Wolfgang Altmannshofer , Jamison Galloway , Stefania Gori , Alexander L. Kagan , Adam Martin , Jure Zupan

The 750-760 GeV diphoton resonance may be identified as one or two scalars and/or one or two pseudoscalars contained in the two singlet superfields S_{1,2} arising from the three 27-dimensional representations of E_6 . The three 27s also…

High Energy Physics - Phenomenology · Physics 2016-04-20 S. F. King , R. Nevzorov

The evidence for a new singlet scalar particle from the 750 GeV diphoton excess, and the absence of any other signal of new physics at the LHC so far, suggest the existence of new coloured scalars. To study this possibility, we propose a…

High Energy Physics - Phenomenology · Physics 2016-03-09 E. Gabrielli , K. Kannike , B. Mele , M. Raidal , C. Spethmann , H. Veermäe
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