A closer look to the sgoldstino interpretation of the diphoton excess

Baratella, Pietro; Elias-Miró, J.; Penedo, J. T.; Romanino, Andrea

doi:10.1007/jhep06(2016)086

Cited by 15 publications

(7 citation statements)

References 54 publications

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“…A similar estimate of the onset of the non-pertubative regime, based on naive dimensional analysis, has been suggested in[58] 12. This is essentially a hierarchy problem, not related to perturbativity.…”

supporting

confidence: 63%

Implications of perturbative unitarity for scalar di-boson resonance searches at LHC

2017

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We study the constraints implied by partial wave unitarity on new physics in the form of spin-zero di-boson resonances at LHC. We derive the scale where the effective description in terms of the SM supplemented by a single resonance is expected to break down depending on the resonance mass and signal cross section. Likewise, we use unitarity arguments in order to set perturbativity bounds on renormalizable UV completions of the effective description. We finally discuss under which conditions scalar di-boson resonance signals can be accommodated within weakly coupled models.

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supporting

confidence: 63%

Implications of perturbative unitarity for scalar di-boson resonance searches at LHC

2017

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“…Inclusion of the 8 TeV data reduces the best fit cross section significantly and simplifies the explanation of the excess in terms of a GUT. Second we take into account sfermionic contributions to the diphoton cross section which can be significant (this was also pointed out in [20,31]). …”

Section: Jhep05(2016)182mentioning

confidence: 99%

750 GeV diphotons and supersymmetric grand unification

Nilles

Winkler

2016

J. High Energ. Phys.

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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 explain the observed signal while remaining perturbative up to the GUT scale. Different from previous analyses we rely on light sfermions in the loops which -compared to the analog non-supersymmetric models -enhance the diphoton cross section by up to a factor of seven. While the resonance decay width is narrow, mass splitting of the scalar and pseudoscalar components may result in a double resonance. We perform a likelihood analysis on the ATLAS and CMS data to show that the significance of the diphoton excess increases from 3.3 σ (single narrow resonance) to 3.9 σ for the double resonance. We also provide signal predictions in other diboson channels to be tested at LHC-13.

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“…35 • Other explanations with the (N)MSSM require additional couplings or particles in the spectrum. Examples are solutions in the R-parity violating MSSM, 36,37 or a very low SUSY-breaking scale, where the sgoldstino is identified with Φ 750 , [38][39][40] or within the NMSSM turning nonperturbative at O(10 TeV). 41 …”

Section: Motivation For Susymentioning

confidence: 99%

The 750 GeV diphoton excess and SUSY

Heinemeyer¹

2016

Int. J. Mod. Phys. A

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The LHC experiments ATLAS and CMS have reported an excess in the diphoton spectrum at \sim 750 GeV. At the same time the motivation for Supersymmetry (SUSY) remains unbowed. Consequently, we review briefly the proposals to explain this excess in SUSY, focusing on "pure" (N)MSSM solutions. We then review in more detail a proposal to realize this excess within the NMSSM. In this particular scenario a Higgs boson with mass around 750 GeV decays to two light pseudo-scalar Higgs bosons. Via mixing with the pion these pseudo-scalars decay into a pair of highly collimated photons, which are identified as one photon, thus resulting in the observed signal.Comment: 10 pages, 2 figures. Talk given at the "Conference on New Physics at the Large Hadron Collider", 29.02. - 04.03.2016, Nanyang University, Singapor

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A closer look to the sgoldstino interpretation of the diphoton excess

Cited by 15 publications

References 54 publications

Implications of perturbative unitarity for scalar di-boson resonance searches at LHC

Implications of perturbative unitarity for scalar di-boson resonance searches at LHC

750 GeV diphotons and supersymmetric grand unification

The 750 GeV diphoton excess and SUSY

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