Resurrecting the minimal renormalizable supersymmetric SU(5) model

Bajc, Borut; Lavignac, Stéphane; Mede, Timon

doi:10.1007/jhep01(2016)044

Cited by 21 publications

(24 citation statements)

References 108 publications

(180 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3), which is the form factor in the physical kinematics with final state of µ + . Matrix element [11,17] [ 12,16] <π 0 |(ud) L u L |p> Figure 5: Renormalized W 0 obtained by plateau fit for data in Figure 4 with three fitting ranges, [13,17], [11,17] and [10,18] at m = 0.005. Left panel is a result for Γ = R and right is a result for Γ = L in p → π channel.…”

Section: Matrix Elementmentioning

confidence: 99%

Improved lattice computation of proton decay matrix elements

et al. 2017

View full text Add to dashboard Cite

We present an improved result of lattice computation of the proton decay matrix elements in N f = 2 + 1 QCD. In this study, the significant improvement of statistical accuracy by adopting the error reduction technique of All-mode-averaging, is achieved for relevant form factor to proton (and also neutron) decay on the gauge ensemble of N f = 2 + 1 domain-wall fermions in m π = 0.34-0.69 GeV on 2.7 fm 3 lattice as used in our previous work [1]. We improve total accuracy of matrix elements to 10-15% from 30-40% for p → πe + or from 20-40% for p → Kν. The accuracy of the low energy constants α and β in the leading-order baryon chiral perturbation theory (BChPT) of proton decay are also improved. The relevant form factors of p → π estimated through the "direct" lattice calculation from three-point function appear to be 1.4 times smaller than those from the "indirect" method using BChPT with α and β. It turns out that the utilization of our result will provide a factor 2-3 larger proton partial lifetime than that obtained using BChPT. We also discuss the use of these parameters in a dark matter model.

show abstract

Section: Matrix Elementmentioning

confidence: 99%

Improved lattice computation of proton decay matrix elements

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The smallest χ 2 in the MCMC analysis lie around 20. If there are UFB directions or CCB minima, we checked that the lifetime of the metastable EW vacuum is much bigger than the age of the universe, following [33][34][35][36]. The 1σ HPD intervals and the mode values for the observables are shown in table 2.…”

Section: Resultsmentioning

confidence: 99%

Predictions from a flavour GUT model combined with a SUSY breaking sector

Antusch

Hohl

2017

J. High Energ. Phys.

View full text Add to dashboard Cite

We discuss how flavour GUT models in the context of supergravity can be completed with a simple SUSY breaking sector, such that the flavour-dependent (nonuniversal) soft breaking terms can be calculated. As an example, we discuss a model based on an SU(5) GUT symmetry and A 4 family symmetry, plus additional discrete "shaping symmetries" and a Z R 4 symmetry. We calculate the soft terms and identify the relevant high scale input parameters, and investigate the resulting predictions for the low scale observables, such as flavour violating processes, the sparticle spectrum and the dark matter relic density.

show abstract

“…On the other hand a SO(10) SUSY GUT model can be distinguished from those classified in SU (5) GUTs. Since the gauge coupling unification can be maintained with a relatively light color triplet in SU (5), it yields a proton lifetime about 10 4 times shorter than the experimental constraints [156]. This issue in SU (5) can be resolved when the mass spectrum is very heavy, which involves the superpartners of mass beyond TeV scales.…”

Section: So(10)mentioning

confidence: 97%

Stop search in SUSY SO(10) GUTs with nonuniversal Gaugino masses

et al. 2020

View full text Add to dashboard Cite

We explore the stop mass and its possible probe through a set of three different signal processes within a class of SUSY GUTs with non-universal gaugino masses. The stop mass can be realized in a wide range (0.4-8 TeV) consistent with the current experimental constraints. We consider the decay processes;t 1 → tχ 0 1 ,t 1 → bW ±χ 0 1 andt 1 → bqq χ 0 1 to be possible signals, and explore the impact of the current experimental results as well as the possible mass scales of stop, which can be probed in the future collider experiments. We find that the first and third signal processes can be tested in the current experiments, and significantly probed in future, while the second signal process is not available for the current experiments in this class of SUSY GUTs. We also comment that the second signal process can be available to be tested when the collider experiments are conducted at high center of mass energies and luminosity.

show abstract

Resurrecting the minimal renormalizable supersymmetric SU(5) model

Cited by 21 publications

References 108 publications

Improved lattice computation of proton decay matrix elements

Improved lattice computation of proton decay matrix elements

Predictions from a flavour GUT model combined with a SUSY breaking sector

Stop search in SUSY SO(10) GUTs with nonuniversal Gaugino masses

Contact Info

Product

Resources

About