New Calculations in Dirac Gaugino Models: Operators, Expansions, and Effects

Carpenter, Linda M.; Goodman, Jessica

doi:10.48550/arxiv.1501.05653

Cited by 4 publications

(7 citation statements)

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“…However, the masses of the real and imaginary parts of the multiplets may be quite split. These masses depend greatly on the details of the messenger sector of the model [40], [28,29]. Since most models have large negative mass contributions for one combination of the fields, it is quite natural to assume that one of the adjoints is much lighter than the other, and may be thus accessible to colliders in the TeV range.…”

Section: Operators In Dirac Gauginos Modelsmentioning

confidence: 99%

“…One possibility is simply to consider loops of the heavy messengers which generate the Dirac gaugino masses themselves. These fields carry SM quantum numbers, the simplest messenger sector are those in which the messengers are fundamentals and antifundamentals under SU(5), see for example [28,29]. Though messengers may couple to the chiral adjoint through large Yukawa like couplings, we expect that the messenger mass scale is very large, thereby suppressing the operator.…”

Section: Uv Completionsmentioning

confidence: 99%

“…In principle the singlet state, along with the SU(2) triplet may mix with the Higgs. The physics of such a Higgs sector in Dirac gaugino models has been studied, for example in references [28,[36][37][38]. In principle there may be regions of allowed parameter space in which the lightest Higgs contains some singlet admixture, this will effect the singlet width but may have effects on the light Higgs observables.…”

Section: Tree Level Contributions To the Singlet Widthmentioning

confidence: 99%

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Supersoft SUSY models and the 750 GeV diphoton excess, beyond effective operators

2016

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We propose that the sbino, the scalar partner of a Dirac bino can explain the 750 GeV diphoton excess observed by the ATLAS and CMS collaborations. We analyze a model in which the sbino couples to pairs of Standard Model (SM) gauge bosons through effective operators. Additionally, we consider a completion in which the sbino couples to pairs of gauge bosons through loops of heavy sfermions. We find that the sbino may be given an appreciable decay width through tree level coupling in the Higgs or Higgsino sector and additionally fit the 750 GeV excess by considering gluon fusion processes with decay to diphotons.

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Section: Operators In Dirac Gauginos Modelsmentioning

confidence: 99%

Section: Uv Completionsmentioning

confidence: 99%

Section: Tree Level Contributions To the Singlet Widthmentioning

confidence: 99%

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Supersoft SUSY models and the 750 GeV diphoton excess, beyond effective operators

2016

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“…The chiral multiplet A is complex, it thus contains both real and imaginary scalar fields which are adjoints under a SM gauge group. The masses of the real and imaginary parts of the scalar adjoint depend greatly on the details of the messenger sector of the model see for example, see for example [14], [15], [16]. Many models lead to tachyonic masses for one or the other adjoint, and fixes may produce a great range of adjoint masses.…”

Section: High Energy Modelsmentioning

confidence: 99%

Searching for Standard Model adjoint scalars with diboson resonance signatures

Carpenter

Colburn

2015

J. High Energ. Phys.

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Abstract:We explore the phenomenology of scalar fields in the adjoint representation of SM gauge groups. We write a general set of dimension 5 effective operators in which SM adjoint scalars couple to pairs of standard model bosons. Using these effective operators, we explore new possible decay channels of a scalar color octet into a gluon and a Z boson, another gluon, or a photon. We recast several analyses from Run I of the LHC to find constraints on an a scalar octet decaying into these channels, and we project the discovery potential of color octets in our gluon+photon channel for the 14 TeV run of LHC.

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“…a massless scalar in the adjoint representation is predicted [41]. This observation has triggered efforts in constructing phenomenological reliable models with Dirac gauginos [47,57,58]. In general, the aim is to get…”

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confidence: 99%

Supersoft supersymmetry, conformal sequestering, and single scale supersymmetry breaking

Ding

Staub

et al. 2016

Phys. Rev. D

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Supersymmetric Standard Models (SSMs) with Dirac gauginos have the appealing supersoft property that they only cause finite contributions to scalar masses. Considering gauge mediated SUSY breaking with conformal sequestering and assuming there is one and only one fundamental parameter with dimension mass arising from supersymmetry breaking, we find a cancellation between the dominant terms that contribute to the EWFT. The resulting EWFT measure can be of order one even for supersymmetric particle masses and µ-terms in the TeV range.

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New Calculations in Dirac Gaugino Models: Operators, Expansions, and Effects

Cited by 4 publications

References 0 publications

Supersoft SUSY models and the 750 GeV diphoton excess, beyond effective operators

Supersoft SUSY models and the 750 GeV diphoton excess, beyond effective operators

Searching for Standard Model adjoint scalars with diboson resonance signatures

Supersoft supersymmetry, conformal sequestering, and single scale supersymmetry breaking

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