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Related papers: Flavor Anomalies, the Diphoton Excess and a Dark M…

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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 propose a coherent explanation for the 750 GeV diphoton anomaly and the hints of deviations from Lepton Flavor Universality in B decays in terms a new strongly interacting sector with vectorlike confinement. The diphoton excess arises…

High Energy Physics - Phenomenology · Physics 2016-08-31 Dario Buttazzo , Admir Greljo , Gino Isidori , David Marzocca

We propose a simplified model of dark matter with a scalar mediator to accommodate the di-photon excess recently observed by the ATLAS and CMS collaborations. Decays of the resonance into dark matter can easily account for a relatively…

High Energy Physics - Phenomenology · Physics 2016-04-20 Mihailo Backovic , Alberto Mariotti , Diego Redigolo

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

ATLAS and CMS recently released the first results of searches for diphoton resonances in 13 TeV data, revealing a modest excess at an invariant mass of approximately 750 GeV. We find that it is generically possible that a singlet scalar…

High Energy Physics - Phenomenology · Physics 2016-03-23 Samuel D. McDermott , Patrick Meade , Harikrishnan Ramani

Preliminary ATLAS and CMS results from the first 13 TeV LHC run have encountered an intriguing excess of events in the diphoton channel around the invariant mass of 750 GeV. We investigate a possibility that the current excess is due to a…

High Energy Physics - Phenomenology · Physics 2016-08-24 Chien-Yi Chen , Michel Lefebvre , Maxim Pospelov , Yi-Ming Zhong

We propose that the possible 750 GeV diphoton excess can be explained in the color-octet neutrino mass model extended with a scalar singlet $\Phi$. The model generally contains $N_s$ species of color-octet, electroweak doublet scalars $S$…

High Energy Physics - Phenomenology · Physics 2016-05-04 Ran Ding , Zhi-Long Han , Yi Liao , Xiao-Dong Ma

We explore $U(1)_{L_e-L_\mu}$ gauge extension of the Standard Model with particle content enlarged by three neutral fermions, of which the lightest one contributes to dark matter content of the Universe. The scalar sector is enriched with a…

High Energy Physics - Phenomenology · Physics 2026-05-29 Manas Kumar Mohapatra , Shivaramakrishna Singirala , Dhiren Panda , Rukmani Mohanta

The ATLAS and CMS experiments at the LHC have reported an excess of diphoton events with invariant mass around 750 GeV, with local significance of about $3.6 \sigma$ and $2.6 \sigma$, respectively. We entertain the possibility that this…

High Energy Physics - Phenomenology · Physics 2016-09-01 Daniel Aloni , Kfir Blum , Avital Dery , Aielet Efrati , Yosef Nir

We construct a model containing a viable dark matter candidate, in the framework of left-right symmetry, which can explain both width and cross-section of the observed 750 GeV diphoton excess at the LHC. We introduce a fermion quintuplet…

High Energy Physics - Phenomenology · Physics 2016-07-14 Sanjib Kumar Agarwalla , Kirtiman Ghosh , Ayon Patra

We present a simple extension of the standard model (SM) to explain the diphoton excess, reported by CMS and ATLAS at CERN LHC. The SM is extended by a dark sector including a vector-like lepton doublet and a singlet of zero electromagnetic…

High Energy Physics - Phenomenology · Physics 2016-06-15 Subhaditya Bhattacharya , Sudhanwa Patra , Nirakar Sahoo , Narendra Sahu

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

With the recent experimental hint of new physics from flavor physics anomalies, combined with the evidence from neutrino mass and dark matter, we consider a minimal extension of SM with a scalar leptoquark and a fermion triplet. The scalar…

High Energy Physics - Phenomenology · Physics 2022-11-11 Purushottam Sahu , Aishwarya Bhatta , Rukmani Mohanta , Shivaramakrishna Singirala , Sudhanwa Patra

We revisit a set of dark sector models, motivated by anomalies observed in $B$ decays and the muon anomalous magnetic moment, in the light of a recently reported diphoton excess around 750$\,$GeV. Interpreting the excess as a scalar…

High Energy Physics - Phenomenology · Physics 2016-11-02 Geneviève Bélanger , Cédric Delaunay

The existence of dark matter (DM) and the origin of the baryon asymmetry are persistent indications that the SM is incomplete. More recently, the ATLAS and CMS experiments have observed an excess of diphoton events with invariant mass of…

High Energy Physics - Phenomenology · Physics 2016-06-08 Mads T. Frandsen , Ian M. Shoemaker

We make a comprehensive study of vector-like fermionic dark matter and flavor anomalies in a simple extension of standard model. The model is added with doublet vector-like fermions of quark and lepton types, and also a…

High Energy Physics - Phenomenology · Physics 2021-12-09 Suchismita Sahoo , Shivaramakrishna Singirala , Rukmani Mohanta

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

Motivated by what is possibly the first sign of new physics seen at the LHC, the diphoton excess at $750$ GeV in ATLAS and CMS, we present a model that provides naturally the necessary ingredients to explain the resonance. The simplest…

High Energy Physics - Phenomenology · Physics 2016-06-13 Sofiane M. Boucenna , Stefano Morisi , Avelino Vicente

We investigate a simple setup in which an excess in the di-photon invariant mass distribution around $750$ GeV, as seen by the ATLAS and CMS collaborations, is originated through a pair of collimated photon pairs. In this framework a scalar…

High Energy Physics - Phenomenology · Physics 2016-08-31 Giorgio Arcadi , Pradipta Ghosh , Yann Mambrini , Mathias Pierre

A minimal extension of the Standard Model (SM) featuring two scalar leptoquarks, an SU(2) doublet with hypercharge 1/6 and a singlet with hypercharge 1/3, is proposed as an economical benchmark model for studies of an interplay between…

High Energy Physics - Phenomenology · Physics 2023-11-13 Felipe F. Freitas , João Gonçalves , António P. Morais , Roman Pasechnik , Werner Porod
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