GM2Calc: precise MSSM prediction for $$(g-2)$$ ( g - 2 ) of the muon

Athron, Peter; Bach, Markus; Fargnoli, H. G.; Gnendiger, Christoph; Greifenhagen, R.; Park, Jae Hyeon; Paßehr, Sebastian; Stöckinger, Dominik; Stöckinger-Kim, Hyejung; Voigt, Alexander

doi:10.1140/epjc/s10052-015-3870-2

Cited by 83 publications

(40 citation statements)

References 91 publications

(117 reference statements)

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“…Albeit, two-loop effects which are negative, lead to effects of the order of 10% [124,[286][287][288]: thus not changing much the overall picture.…”

Section: Similar Susy Massesmentioning

confidence: 99%

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

2018

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We review how the muon anomalous magnetic moment (g − 2) and the quest for lepton flavor violation are intimately correlated. Indeed the decay µ → eγ is induced by the same amplitude for different choices of in-and outgoing leptons. In this work, we try to address some intriguing questions such as:Which hierarchy in the charged lepton sector one should have in order to reconcile possible signals coming simultaneously from g − 2 and lepton flavor violation?What can we learn if the g − 2 anomaly is confirmed by the upcoming flagship experiments at FERMILAB and J-PARC, and no signal is seen in the decay µ → eγ in the foreseeable future? On the other hand, if the µ → eγ decay is seen in the upcoming years, do we need to necessarily observe a signal also in g − 2?.In this attempt, we generally study the correlation between these observables in a detailed analysis of simplified models. We derive master integrals and

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“…Albeit, two-loop effects which are negative, lead to effects of the order of 10% [124,[286][287][288]: thus not changing much the overall picture.…”

Section: Similar Susy Massesmentioning

confidence: 99%

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

2018

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“…In supersymmetric models, the lightest neutralinoχ 0 1 can serve as a natural WIMP DM candidate if the R-parity is conserved. Meanwhile, the muon g − 2 anomaly can be explained by the contributions of light sleptons and electroweakinos running in the loops [4][5][6][7]. In addition, SUSY can also solve the hierarchy problem and realize the unification of gauge couplings at the GUT scale.…”

Section: Introductionmentioning

confidence: 99%

Testing electroweak SUSY for muon g − 2 and dark matter at the LHC and beyond

Abdughani

Hikasa

et al. 2019

J. High Energ. Phys.

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Given that the LHC experiment has produced strong constraints on the colored supersymmetric particles (sparticles), testing the electroweak supersymmetry (EWSUSY) will be the next crucial task at the LHC. On the other hand, the light electroweakinos and sleptons in the EWSUSY can also contribute to the dark matter (DM) and low energy lepton observables. The precision measurements of them will provide the indirect evidence of SUSY. In this work, we confront the EWSUSY with the muon g − 2 anomaly, the DM relic density, the direct detection limits and the latest LHC Run-2 data. We find that the sneutrino DM or the neutralino DM with sizable higgsino component has been excluded by the direct detections. Then two viable scenarios are pinned down: one has the light compressed bino and sleptons but heavy higgsinos, and the other has the light compressed bino, winos and sleptons. In the former case, the LSP and slepton masses have to be smaller than about 350 GeV. While in the latter case, the LSP and slepton masses have to be smaller than about 700 GeV and 800 GeV, respectively. From investigating the observability of these sparticles in both scenarios at future colliders, it turns out that the HE-LHC with a luminosity of 15 ab −1 can exclude the whole BHL and most part of BWL scenarios at 2σ level. The precision measurement of the Higgs couplings at the lepton colliders could play a complementary role of probing the BWL scenario.

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“…The values of a SUSY µ are calculated by GM2Calc 1.5.0 [45] with the tan β resummation. Although it can evaluate the relevant contributions to a SUSY µ at the two-loop level [51,52], we do not include them and use the one-loop result so that a SUSY µ is independent of the #5 Note that the heavy Higgs bosons are already strongly constrained by pp → H/A → τ τ searches when tan β is sizable.…”

Section: Setupmentioning

confidence: 99%

Muon g − 2 vs LHC Run 2 in supersymmetric models

Endo

Hamaguchi

Iwamoto

et al. 2020

J. High Energ. Phys.

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Supersymmetric models with sub-TeV charginos and sleptons have been a candidate for the origin of the long-standing discrepancy in the muon anomalous magnetic moment (g − 2). By gathering all the available LHC Run 2 results, we investigate the latest LHC constraints on models that explain the anomaly by their chargino contribution to the muon g − 2. It is shown that the parameter regions where sleptons are lighter than charginos are strongly disfavored. In contrast, we find that the models with m µL m χ ± 1 are still widely allowed, where the lighter chargino dominantly decays into a W -boson and a neutralino.

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GM2Calc: precise MSSM prediction for $$(g-2)$$ ( g - 2 ) of the muon

Cited by 83 publications

References 91 publications

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

Testing electroweak SUSY for muon g − 2 and dark matter at the LHC and beyond

Muon g − 2 vs LHC Run 2 in supersymmetric models

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