Connecting (supersymmetry) CERN LHC measurements with high scale theories

Kane, Gordon L.; Kumar, Piyush; Morrissey, David E.; Toharia, Manuel

doi:10.1103/physrevd.75.115018

Cited by 22 publications

(21 citation statements)

References 94 publications

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“…In Ref. [52], it was demonstrated that the failure to infer even one soft mass experimentally may be sufficient to drastically alter the high-scale prediction for other masses.…”

Section: Introductionmentioning

confidence: 99%

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Determining the structure of supersymmetry breaking with renormalization group invariants

et al. 2010

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If collider experiments demonstrate that the Minimal Supersymmetric Standard Model (MSSM) is a good description of nature at the weak scale, the experimental priority will be the precise determination of superpartner masses. These masses are governed by the weak scale values of the soft supersymmetry (SUSY)-breaking parameters, which are in turn highly dependent on the SUSY-breaking scheme present at high scales. It is therefore of great interest to find patterns in the soft parameters that can distinguish different high scale SUSY-breaking structures, identify the scale at which the breaking is communicated to the visible sector, and determine the soft breaking parameters at that scale. In this work, we demonstrate that 1-loop Renormalization Group (RG) invariant quantities present in the MSSM may be used to answer each of these questions. We apply our method first to generic flavor-blind models of SUSY-breaking, and then examine in detail the subset of these models described by General Gauge Mediation and the constrained MSSM with non-universal Higgs masses. As RG invariance generally does not hold beyond leading-log order, we investigate the magnitude and direction of the 2-loop corrections. We find that with superpartners at the TeV scale, these 2-loop effects are either negligible, or they are of the order of optimistic experimental uncertainties and have definite signs, which allows them to be easily accounted for in the overall uncertainty.

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“…In Ref. [52], it was demonstrated that the failure to infer even one soft mass experimentally may be sufficient to drastically alter the high-scale prediction for other masses.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. [52] several invariants were introduced for the purpose of testing high-scale flavor universality in the presence of extra intermediate-scale GUT multiplets. Ref.…”

Section: Introductionmentioning

confidence: 99%

Determining the structure of supersymmetry breaking with renormalization group invariants

et al. 2010

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“…More precisely, they allow this hypothesis to be ruled out: measuring D B 13 = 0 or D L 13 = 0 at the low scale implies high-scale family non-universality; however, as noted in Ref. [33], measuring D B 13 = 0 and D L 13 = 0 at the low scale does not necessarily indicate high-scale universality. Current experimental data from flavor physics strongly motivates a flavor-universal mediation mechanism for SUSY-breaking.…”

Section: Flavor-blind Modelsmentioning

confidence: 99%

“…It would be very useful to have a method that allowed us to set bounds on the supersymmetry-breaking parameters at the messenger scale, independent of the unknown supersymmetry-breaking scheme and of the unknown value of the messenger scale. Renormalization Group Invariants (RGIs) [33]- [41] provide such a method. Determination of the value of the RGIs at the TeV scale sets their values at the messenger scale.…”

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confidence: 99%

Phenomenological MSSM interpretation of LHC results using rernormalization group invariants

Carena

Lykken²,

Sekmen³

et al. 2012

Phys. Rev. D

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The LHC has started to constrain supersymmetry-breaking parameters by setting bounds on possible colored particles at the weak scale. Moreover, constraints from Higgs physics, flavor physics, the anomalous magnetic moment of the muon, as well as from searches at LEP and the Tevatron have set additional bounds on these parameters. Renormalization Group Invariants (RGIs) provide a very useful way of representing the allowed parameter space by making direct connection with the values of these parameters at the messenger scale. Using a general approach, based on the pMSSM parametrization of the soft supersymmetry-breaking parameters, we analyze the current experimental constraints to determine the probability distributions for the RGIs. As examples of their application, we use these distributions to analyze the question of Gaugino Mass Unification and to probabilistically determine the parameters of General and Minimal Gauge Mediation with arbitrary Higgs mass parameters at the Messenger Scale. * http://theory.fnal.gov 0

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“…On the other hand, the LHC has also searched for signals of new physics beyond the SM, either through the production of new particles or by looking for anomalous couplings for the SM particles [5]. However, so far current LHC studies have not detected any evidence of new physics, and the resulting bounds on the associated scale has been pushed into the TeV territory [6].…”

Section: Introductionmentioning

confidence: 99%

One-loop decaysA0→ZZ,Zγ,γγwithin the 2HDM and its search at the LHC

et al. 2014

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The general two-Higgs doublet model (2HDM) contains a rich spectrum of neutral and charged Higgs bosons, whose detection would be a clear signal of new physics. When the Higgs potential is CP conserving, the spectrum includes a pseudoscalar mass eigenstate A 0 , which does not couple to vector bosons at tree level. However, fermionic loops (top and bottom mainly) induce the coupling AVV 0 (with V; V 0 ¼ γ; Z) at higher orders. We evaluate the amplitude for the decays A 0 → ZZ; Zγ; γγ, including a generic fermionic loop contribution, and present results on the branching ratios for 2HDM-I,II and III. Current LHC searches on heavy Higgs bosons are used as an estimate to constrain the allowed mass range for A 0 .

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Connecting (supersymmetry) CERN LHC measurements with high scale theories

Cited by 22 publications

References 94 publications

Determining the structure of supersymmetry breaking with renormalization group invariants

Determining the structure of supersymmetry breaking with renormalization group invariants

Phenomenological MSSM interpretation of LHC results using rernormalization group invariants

One-loop decaysA0→ZZ,Zγ,γγwithin the 2HDM and its search at the LHC

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