Nucleon electric dipole moments in high-scale supersymmetric models

Hisano, Junji; Kobayashi, Daiki; Kuramoto, Wataru; Kuwahara, Takumi

doi:10.1007/jhep11(2015)085

Cited by 22 publications

(15 citation statements)

References 71 publications

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“…(4.8,4.13), there is also a strong µ dependence, with a preference for large values. The right panel of Figure 6 shows that the µ → eγ branching ratio is correlated with the electron EDM, mainly through the slepton masses and the bino-slepton mass [44] and |d e /e| 1.52 × 10 −17 GeV −1 [42].…”

Section: Br(µ → Eγ)mentioning

confidence: 99%

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Phenomenological implications of anSU(5)×S4×U(1)SUSY

2016

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We discuss the characteristic low energy phenomenological implications of an SU (5) Supersymmetric Grand Unified Theory (SUSY GUT) whose flavour structure is controlled by the family symmetry S 4 × U (1), which provides a good description of all quark and lepton masses, mixings as well as CP violation. Although the model closely mimics Minimal Flavour Violation (MFV) as shown in [1], here we focus on the differences. We first present numerical estimates of the low energy mass insertion parameters, including canonical normalisation and renormalisation group running, for well-defined ranges of SUSY parameters and compare the naive model expectations to the numerical scans and the experimental bounds. Our results are then used to estimate the model-specific predictions for Electric Dipole Moments (EDMs), Lepton Flavour Violation (LFV), B and K meson mixing as well as rare B decays. The largest observable deviations from MFV come from the LFV process µ → eγ and the electron EDM. *

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Section: Br(µ → Eγ)mentioning

confidence: 99%

“…Adopting the QCD sum rules approach, the neutron EDM at the renormalisation scale µ = 1 GeV is given in terms of the QCDθ-term and the quark (C)EDMs by [42] d n e = 8.2 × 10 −17 cmθ − 0.12 62) while the current experimental limit is [71] |d n /e| ≤ 2.9 × 10 −26 cm ≈ 1.47 × 10…”

Section: Neutron Andmentioning

confidence: 99%

Phenomenological implications of anSU(5)×S4×U(1)SUSY

2016

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“…The one-loop QCD corrections [52] are taken into account between the electroweak scale and the hadronic scale, and then we estimate the nucleon EDMs at the hadronic scale, 1 GeV, using the following relations derived in Refs. [53,54]:…”

Section: Electric Dipole Moments In Ewimp Modelsmentioning

confidence: 99%

Renormalization effects on electric dipole moments in electroweakly interacting massive particle models

2019

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We study the renormalization effects on electric dipole moments in the models with new electroweakly interacting massive fermions. The electric dipole moments are generated by the effective operators which arise from integrating out heavy particles at some scale in the models. We give the renormalization group equation for the Wilson coefficients of the effective operators from the scale where the operators are generated to the electroweak scale. Our numerical studies focus on the electric dipole moments in the mini-split supersymmetric scenario and the electroweakly interacting massive particle dark matter scenario. It turns out that the renormalization effects can give an enhancement factor being of the order of O(10)% in the mini-split scenario and being more than two in the minimal dark matter model.

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“…We then RG evolve the Wilson coefficients, including the mixing effects of CP -odd operators [71], down to Q = 1 GeV. The nucleon EDMs at the hadronic scale Q = 1 GeV are found from the following relation, determined by lattice simulations and QCD sum rules [72,73],…”

Section: Electric Dipole Momentsmentioning

confidence: 99%

Revisiting flavor and CP violation in supersymmetric SU(5) with right-handed neutrinos

Evans¹,

Kadota

Kuwahara

2018

Phys. Rev. D

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We revisit the minimal supersymmetric SU (5) grand unified theory with three right-handed neutrinos in which universality conditions for soft-supersymmetry breaking parameters are imposed at an input scale above the unification scale. If the Majorana masses for the neutrinos are around 10 15 GeV, large mixing angles and phases in the neutrino sector lead to flavor-violation and CP -violation in the righthanded down squark and left-handed slepton sectors. Since the observed Higgs boson mass and the proton decay constraints indicate sfermions have masses larger than a few TeV, flavor and CP constraints are less restrictive. We explore the constraints on models with a universal soft-supersymmetry breaking input parameters coming from proton stability, electric dipole moments, µ → eγ decays, and the Higgs mass observed at the LHC. Regions compatible with all constraints can be found if non-zero A-terms are taken. arXiv:1807.08234v2 [hep-ph] 12 Nov 2018The collider experiments at the Large Hadron Collider (LHC) have given stringent constraints on models beyond the Standard Model (SM). In the minimal supersymmetric (SUSY) extension of the SM (MSSM), squarks and gluinos are severely constrained by their absence at the LHC (see ) and by the observed Higgs mass [4].In many models, the soft-supersymmetry breaking parameters are assumed to be universal and real at the input scale. This assumption makes it easy to avoid constraints from flavor-changing and CP -violating processes (such as meson oscillations, rare decays, electric dipole moments (EDMs), etc). For most studies, the universality conditions on the soft-supersymmetry breaking parameters are imposed at the grand unification (GUT) scale, M GUT ∼ 2 × 10 16 GeV, where the SM gauge couplings unify. In particular, in the constrained MSSM (CMSSM) [5,6] the universality of the scalar mass (m 0 ), gaugino mass (M 1/2 ), and trilinear coupling (A 0 ) are assumed at the unification scale. In this simplified model, flavor and CP violating processes arise only through the Cabbibo-Kobayashi-Maskawa (CKM) matrix and are suppressed due to the smallness of the CKM matrix elements. However, there is no compelling reason to take the boundary scale of the soft-supersymmetry breaking parameters to be the GUT scale, and it is quite plausible that it is above the GUT scale (the so-called super-GUT scenarios, see Refs. [7-10]) or below the GUT scale (the so-called sub-GUT scenarios, see Refs. [11][12][13][14]). In the case of super-GUT models, the low-scale soft-supersymmetry breaking parameters are affected by which SUSY GUT model is chosen, because of the renormalization group (RG) running between the input scale and the unification scale.Grand unified theories based on SU (5) are among the more minimal options; each generation of quarks and leptons are unified into a 5+10 representations of SU (5) [15][16][17]. Although neutrinos are massless in the SM, non-zero neutrino masses and mixing angles have been well established by the neutrino oscillation experiments [18][19][20]. In the c...

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Nucleon electric dipole moments in high-scale supersymmetric models

Cited by 22 publications

References 71 publications

Phenomenological implications of anSU(5)×S4×U(1)SUSY

Phenomenological implications of anSU(5)×S4×U(1)SUSY

Renormalization effects on electric dipole moments in electroweakly interacting massive particle models

Revisiting flavor and CP violation in supersymmetric SU(5) with right-handed neutrinos

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