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Related papers: 750 GeV Diphotons: Implications for Supersymmetric…

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A recent signal of 750 GeV diphotons at the LHC can be explained within the framework of supersymmetric unification by the introduction of vector quarks and leptons with Yukawa couplings to a singlet S that describes the 750 GeV resonance.…

High Energy Physics - Phenomenology · Physics 2016-03-23 Lawrence J. Hall , Keisuke Harigaya , Yasunori Nomura

We consider the diphoton resonance at the 13 TeV LHC in the context of SU(5) grand unification. A leading candidate to explain this resonance is a standard model singlet scalar decaying to a pair of photon by means of vector-like fermionic…

High Energy Physics - Phenomenology · Physics 2016-12-01 Bhaskar Dutta , Yu Gao , Tathagata Ghosh , Ilia Gogoladze , Tianjun Li , Qaisar Shafi , Joel W. Walker

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 ATLAS and CMS experiments at the LHC have found significant excess in the diphoton invariant mass distribution near 750 GeV. We interpret this excess in a predictive nonsupersymmetric SU(5) grand unified framework with a singlet scalar…

High Energy Physics - Phenomenology · Physics 2016-04-12 Ketan M. Patel , Pankaj Sharma

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

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

A 750 GeV resonance has been observed at the Run 2 LHC in the diphoton channel. In this paper, we explain this resonance as a CP-even scalar, S, that triggers the spontaneous breaking of local $U(1)_B$ or $U(1)_{B+L}$ gauge symmetries. S…

High Energy Physics - Phenomenology · Physics 2016-06-15 Wei Chao

A very plausible explanation for the recently observed diphoton excess at the 13 TeV LHC is a (pseudo)scalar with mass around 750 GeV, which couples to a gluon pair and to a photon pair through loops involving vector-like quarks (VLQs). To…

High Energy Physics - Phenomenology · Physics 2016-04-13 Jiayin Gu , Zhen Liu

Recently the ATLAS and CMS collaborations at the LHC announced their observation of a potential 750 GeV di-photon resonance, after analyzing the $\sqrt{s}=13$ TeV LHC data. This observation has significant implications for low-energy…

High Energy Physics - Phenomenology · Physics 2016-06-29 Yun Jiang , Ying-Ying Li , Tao Liu

We study a supersymmetric extension of the vector-like lepton scenario, such that the vacuum instability induced by large lepton Yukawa couplings is lifted by the presence of superpartners at or below the TeV scale. In order to preserve the…

High Energy Physics - Phenomenology · Physics 2013-07-23 Aniket Joglekar , Pedro Schwaller , Carlos E. M. Wagner

The ATLAS and CMS collaborations recently presented evidence of a resonance decaying to pairs of photons around 750 GeV. In addition, the BaBar, Belle, and LHCb collaborations have evidence of lepton non-universality in the semileptonic…

High Energy Physics - Phenomenology · Physics 2016-04-12 Christopher W. Murphy

We discuss a possible interpretation of the $750$ GeV diphoton resonance, recently reported at the LHC, within a class of $SU(2)_L\times SU(2)_R\times SU(4)$ models with gauge coupling unification. The unification is imposed by the…

High Energy Physics - Phenomenology · Physics 2016-06-21 Ufuk Aydemir , Djordje Minic , Chen Sun , Tatsu Takeuchi

We interpret the 750-760 GeV diphoton resonance as one or more of the spinless components of a singlet superfield arising from the three 27-dimensional representations of $E_6$ in F-theory, which also contain three copies of colour-triplet…

High Energy Physics - Phenomenology · Physics 2016-05-04 Athanasios Karozas , Stephen F. King , George K. Leontaris , Andrew K. Meadowcroft

We show that the 750 GeV diphoton excess can be explained by introducing vector-like quarks and hidden fermions charged under a hidden U(1) gauge symmetry, which has a relatively large coupling constant as well as a significant kinetic…

High Energy Physics - Phenomenology · Physics 2016-08-24 Fuminobu Takahashi , Masaki Yamada , Norimi Yokozaki

We propose that the diphoton resonance signal indicated by the recent LHC data might also arise from the pair productions of vector-like heavy down-type quarks with mass around $750$ GeV and above. The vector-like quark decays into an…

High Energy Physics - Phenomenology · Physics 2016-07-05 Kasinath Das , Tianjun Li , S. Nandi , Santosh Kumar Rai

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

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

Existence of color sextet diquark Higgs fields with TeV masses will indicate a fundamentally different direction for unification than conventional grand unified theories. There is a class of partial unification models based on the gauge…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. N. Mohapatra , Nobuchika Okada , Hai-Bo Yu

The tentative hints for a diphoton resonance at a mass of $\sim 750$ GeV from the ATLAS and CMS experiments at the LHC may be interpreted as first contact with a "dark" sector with a spontaneously broken conformal symmetry. The implied TeV…

High Energy Physics - Phenomenology · Physics 2016-03-09 Hooman Davoudiasl , Cen Zhang

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
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