Supersymmetric custodial triplets

Cort, Luis; García, Mateo Ramírez; Quirós, M.

doi:10.1103/physrevd.88.075010

Cited by 30 publications

(102 citation statements)

References 47 publications

Supporting

Mentioning

102

Contrasting

Order By: Relevance

“…In this Letter we extend the initial tree-level study of the SCTM [28], which focused on the region M ∼ v, by performing a renormalization group evolution analysis and considering a large range of scales M. We present the main phenomenological features of the model at the tree-level improved by the renormalization group equations. In particular, we show how the SCTM can be consistent with electroweak precision measurements even if the scale at which the SU (2) L ⊗ SU (2) R symmetry holds is in the multi-hundred TeV range and the Higgs triplets contribute sizably to EWSB.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, there are issues with maintaining custodial symmetry once radiative effects are considered [11]. As it was suggested, a natural solution to these problems is to construct a supersymmetric version of the GM model as formulated recently in [28]. This model includes the same superfield content of the MSSM plus three SU (2) L Higgs triplet superfields with hypercharges Y = 0, ±1.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Supersymmetric custodial Higgs triplets and the breaking of universality

et al. 2015

Self Cite

View full text Add to dashboard Cite

Higgs triplet models are known to have difficulties obtaining agreement with electroweak precision data and in particular constraints on the ρ parameter. Either a global SU (2)L ⊗ SU (2)R symmetry has to be imposed on the scalar potential at the electroweak scale, as done in the well-known GeorgiMachacek (GM) model, or the triplet vacuum expectation values must be very small. We construct a supersymmetric model that can satisfy constraints on the ρ parameter, even if these two conditions are not fulfilled. We supersymmetrize the GM model by imposing the SU (2)L ⊗ SU (2)R symmetry at a scale M, which we argue should be at or above the messenger scale, where supersymmetry breaking is transmitted to the observable sector. We show that scales M well above 100 TeV and sizable contributions from the triplets to electroweak symmetry breaking can be comfortably accommodated. We discuss the main phenomenological properties of the model and demonstrate that the departure from custodial symmetry at the electroweak scale, due to radiative breaking, can show up at the LHC as a deviation in the 'universal' relation for the Higgs couplings to W W and ZZ. As a by-product of supersymmetry, we also show that one can easily obtain both large tree-level and one loop corrections to the Higgs mass. This allows for top squarks that can be significantly lighter and with smaller mixing than those needed in the MSSM.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supersymmetric custodial Higgs triplets and the breaking of universality

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Although some of the above-mentioned features are also shared by the septet extension model [20], the latter suffers from an accidental U (1) symmetry that could lead to an undesirable Nambu-Goldstone (NG) boson if it is broken spontaneously. There are also supersymmetric [21,22] and little Higgs extensions [23,24] of the GM model.…”

Section: Jhep04(2015)113mentioning

confidence: 99%

Properties and searches of the exotic neutral Higgs bosons in the Georgi-Machacek model

Chiang

Tsumura

2015

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:The Georgi-Machacek model predicts the existence of four neutral Higgs bosons, one of which can be identified as the 125-GeV Higgs boson. The latest Higgs data favor the parameter space of small mixing angle α between the two custodial singlets of the model. The other two neutral Higgs bosons belong respectively to the custodial triplet and quintet. We study the general decay and production properties of these particles in the small-α scenario. Constraints on the SU(2) L triplet vacuum expectation value are obtained as a function of the exotic Higgs boson masses using latest ATLAS data of various search channels for additional neutral Higgs bosons.

show abstract

“…2 ) T , with respective hypercharges Y = (−1/2, 1/2), three SU(2) L triplets Σ Y with hypercharges Y = (−1, 0, 1), which we represent by two dimensional matrices as [10] …”

Section: Overview Of the Sctmmentioning

confidence: 99%

“…This theory has been recently supersymmetrized in a series of papers, Refs. [10,11,12,13], where a custodial symmetry is introduced in the Higgs superpotential and where the ρ parameter is protected. This theory is dubbed supersymmetric custodial triplet model (SCTM) and will be used in this work.…”

Section: Introductionmentioning

confidence: 99%

Gauge mediation with light stops

Delgado¹,

Garcia-Pepin²,

Ferraz³

2016

Proceedings of 18th International Conference From the Planck Scale to the Electroweak Scale — PoS(PLANCK 2015)

Self Cite

View full text Add to dashboard Cite

The mechanism of gauge mediated supersymmetry breaking (GMSB) solves the supersymmetric flavor problem although it requires superheavy stops to reproduce the experimental value (125 GeV) of the Higgs mass. A possible way out is to extend the MSSM Higgs sector with triplets which provide extra tree-level corrections to the Higgs mass. Triplets with neutral components getting vacuum expectation values (VEV) have the problem of generating a tree-level correction to the ρ parameter. We introduce supersymmetric triplets with hypercharges Y = (0, ±1), with a tree-level custodial SU(2) L ⊗ SU(2) R global symmetry in the Higgs sector protecting the ρ parameter: a supersymmetric generalization of the Georgi-Machacek model. The renormalization group running from the messenger to the electroweak scale mildly breaks the custodial symmetry. We will present realistic low-scale scenarios, their main features being a Bino-like neutralino or right-handed stau as the NLSP, light (1 TeV) stops, exotic couplings (H ± W ∓ Z and H ±± W ∓ W ∓ ) absent in the MSSM and proportional to the triplet VEV, and a possible (measurable) universality breaking of the Higgs couplings λ W Z = g hWW /g SM hWW / g hZZ /g SM hZZ = 1.

show abstract

Supersymmetric custodial triplets

Cited by 30 publications

References 47 publications

Supersymmetric custodial Higgs triplets and the breaking of universality

Supersymmetric custodial Higgs triplets and the breaking of universality

Properties and searches of the exotic neutral Higgs bosons in the Georgi-Machacek model

Gauge mediation with light stops

Contact Info

Product

Resources

About