The 750 GeV diphoton resonance as an sgoldstino: a reappraisal

Bardhan, Debjyoti; Byakti, Pritibhajan; Ghosh, Diptimoy; Sharma, Tarun Kumar

doi:10.1007/jhep06(2016)129

Cited by 9 publications

(1 citation statement)

References 48 publications

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“…The model building becomes less trivial, and one or more of the following is required: large couplings, many states running in the loop, and/or large electric charges for these new states. Theories of these types do not have to result from a UV biased approach to model building, although there is a growing literature of models which are concerned with incorporating the new states in the context of supersymmetry (SUSY) , and consistency of the models to high energies by studying their renormalization group evolution [31,32,40,41,[45][46][47][48][49][50][51].…”

Section: Introductionmentioning

confidence: 99%

750 GeV diphotons from supersymmetry with Dirac gauginos

et al. 2016

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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 the adjoint representation for each gauge group. The bino partner pseudoscalar is identified as the 750 GeV resonance, while superpotential interactions between it and the gluino (wino) partners yield production via gluon fusion (decay to photon pairs) at one-loop. The gauginos and these additional adjoint superpartners are married by a Dirac mass and must also have Majorana masses. While a large wino partner Majorana mass is necessary to explain the excess, the gluino can be approximately Dirac-like, providing benefits consistent with being both "supersoft" (loop corrections to the scalar masses from Dirac gauginos are free of logarithmic enhancements) and "supersafe" (the experimental limits on the squark/gluino masses can be relaxed due to the reduced production rate). Consistency with the measured Standard Model-like Higgs boson mass is imposed, and a numerical exploration of the parameter space is provided. Models that can account for the diphoton excess are additionally characterized by having couplings that can remain perturbative up to very high scales, while remaining consistent with experimental constraints, the Higgs boson mass, and an electroweak scale which is not excessively fine-tuned.

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Section: Introductionmentioning

confidence: 99%

750 GeV diphotons from supersymmetry with Dirac gauginos

et al. 2016

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The Higgs of the Higgs and the diphoton channel

Kannike

Pelaggi

Salvio

et al. 2016

J. High Energ. Phys.

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LHC results do not confirm conventional natural solutions to the Higgs mass hierarchy problem, motivating alternative interpretations where a hierarchically small weak scale is generated from a dimension-less quantum dynamics. We propose weakly and strongly-coupled models where the field that breaks classical scale invariance giving mass to itself and to the Higgs is identified with a possible new resonance within the LHC reach. As an example, we identify such resonance with the 750 GeV diphoton excess recently reported by ATLAS and CMS. Such models can be extrapolated up to the Planck scale, provide Dark Matter candidates and eliminate the SM vacuum instability.

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Minimal dilaton model and the diphoton excess

2016

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In light of the recent 750 GeV diphoton excesses reported by the ATLAS and CMS collaborations, we investigate the possibility of explaining this excess using the Minimal Dilaton Model. We find that this model is able to explain the observed excess with the presence of additional top partner(s), with same charge as the top quark, but with mass in the TeV region. First, we constrain model parameters using in addition to the 750 GeV diphoton signal strength, precision electroweak tests, single top production measurements, as well as Higgs signal strength data collected in the earlier runs of the LHC. In addition we discuss interesting phenomenolgy that could arise in this model, relevant for future runs of the LHC.

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The 750 GeV diphoton resonance as an sgoldstino: a reappraisal

Cited by 9 publications

References 48 publications

750 GeV diphotons from supersymmetry with Dirac gauginos

750 GeV diphotons from supersymmetry with Dirac gauginos

The Higgs of the Higgs and the diphoton channel

Minimal dilaton model and the diphoton excess

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