LFV decays of
                    <i>Z</i>
                    boson in Minimal
                    <i>R</i>
                    -symmetric Supersymmetric Standard Model

Sun, Ke; Chen, Jianbin; Yang, Xiu-Yi; Cui, Sheng-Kai

doi:10.1088/1674-1137/43/4/043101

Cited by 11 publications

(23 citation statements)

References 37 publications

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“…The valid region for δ 12 calculated in Ref. [54] with the Mathematica package Package-X is compatible with that in this work calculated with SARAH and SPheno. We clearly see that both the predictions for BRðμ → eγÞ and CRðμ − e; nucleusÞ in nuclei are sensitive to δ 12 , and they increase along with the increase of δ 12 which has the same behavior as those in most SUSY models (see e.g., [64]).…”

Section: Numerical Analysissupporting

confidence: 76%

“…In the following, we will use LFV decays μ → eγ to constrain the parameters δ 12 which was discussed in Ref. [54]. It is noted that δ 23 and δ 13 have been set zero in the following discussion since they have no effect on the predictions of CRðμ − e; nucleusÞ.…”

Section: Numerical Analysismentioning

confidence: 99%

“…In a recent work, Ref. [54], the analytical computation and discussion of BRðμ → eγÞ in the MRSSM was performed. The valid region for δ 12 calculated in Ref.…”

Section: Numerical Analysismentioning

confidence: 99%

“…Additional superfieldsŜ,T, andÔ are introduced to yield Dirac mass terms of gauginos. Studies on phenomenology in the MRSSM can be found in the literature [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. Similar to MSSM, the off-diagonal entries δ ij in slepton mass matrices m 2 l and m 2 r dominate the LFV process μ-e conversion.…”

Section: Introductionmentioning

confidence: 99%

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Muon conversion to an electron in nuclei in the minimal R-symmetric supersymmetric standard model

Sun

Cui

et al. 2020

Phys. Rev. D

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We analyze the lepton flavor violating process μ-e conversion in the framework of the minimal R-symmetric supersymmetric standard model. The theoretical predictions are determined by considering the experimental constraint on parameter δ 12 from the lepton flavor violating decay μ → eγ. The predictions for CRðμ − e; nucleusÞ in nuclei are not sensitive to tan β or m A and take values in a narrow region. The numerical results show that γ penguins dominate the predictions on CRðμ − e; nucleusÞ, and the contribution from Higgs penguins is insignificant. The Z penguins and box diagrams are less dominant in the predictions on CRðμ − e; nucleusÞ in a large parameter region. For small squark mass parameter, the contribution from box diagrams is comparable with dipole contribution from γ penguins. The theoretical predictions on conversion rate CRðμ − e; nucleusÞ in an Al or Ti target can be enhanced close to the future experimental sensitivities and are very promising to be observed in near future experiments.

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Section: Numerical Analysissupporting

confidence: 76%

Section: Numerical Analysismentioning

confidence: 99%

“…In a recent work, Ref. [54], the analytical computation and discussion of BRðμ → eγÞ in the MRSSM was performed. The valid region for δ 12 calculated in Ref.…”

Section: Numerical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Muon conversion to an electron in nuclei in the minimal R-symmetric supersymmetric standard model

Sun

Cui

et al. 2020

Phys. Rev. D

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“…[20]; further flavour physics observables have also been studied in refs. [21,22]. The result of ref.…”

Section: Jhep08(2019)082mentioning

confidence: 94%

Low-energy lepton physics in the MRSSM: (g − 2)μ, μ→eγ and μ→e conversion

Stöckinger

Stöckinger-Kim

2019

J. High Energ. Phys.

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Low-energy lepton observables are discussed in the Minimal R-symmetric Supersymmetric Standard Model. We present comprehensive numerical analyses and the analytic one-loop results for (g − 2) µ , µ → eγ, and µ → e conversion. The interplay between the three observables is investigated as well as the parameter regions with large g − 2. A striking difference to the MSSM is the absence of tan β enhancements; however we find smaller enhancements governed by MRSSM-specific R-Higgsino couplings λ d and Λ d. As a result we find significant contributions to g − 2 only in a small parameter space with several SUSY masses below 200 GeV, compressed spectra and large λ d , Λ d. In this parameter space there is a correlation between all three considered observables. In the parameter region with small (g − 2) µ the SUSY masses can be larger and the correlation between µ → eγ and µ → e conversion is weak. Therefore already COMET Phase 1 has a promising sensitivity to the MRSSM.

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Searching for lepton flavor violating decays $$\tau \rightarrow Pl$$ in the minimal R-symmetric supersymmetric standard model

Sun

Guo

et al. 2020

Eur. Phys. J. C

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We analyze the lepton flavor violating decays $$\tau \rightarrow Pl$$ τ → P l ($$P=\pi ,\eta ,\eta ';\;l=e,\mu $$ P = π , η , η ′ ; l = e , μ ) in the scenario of the minimal R-symmetric supersymmetric standard model. The prediction on the branching ratios BR$$(\tau \rightarrow P e)$$ ( τ → P e ) and BR$$(\tau \rightarrow P \mu )$$ ( τ → P μ ) is affected by the mass insertion parameters $$\delta ^{13}$$ δ 13 and $$\delta ^{23}$$ δ 23 , respectively. These parameters are constrained by the experimental bounds on the branching ratios BR($$\tau \rightarrow e (\mu ) \gamma $$ τ → e ( μ ) γ ) and BR($$\tau \rightarrow 3e(\mu )$$ τ → 3 e ( μ ) ). The result shows Z penguin dominates the prediction on BR($$\tau \rightarrow Pl$$ τ → P l ) in a large region of the parameter space. The branching ratios for BR($$\tau \rightarrow Pl$$ τ → P l ) are predicted to be, at least, five orders of magnitude smaller than present experimental bounds and three orders of magnitude smaller than future experimental sensitivities.

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LFV decays of Z boson in Minimal R -symmetric Supersymmetric Standard Model

Cited by 11 publications

References 37 publications

Muon conversion to an electron in nuclei in the minimal R-symmetric supersymmetric standard model

Muon conversion to an electron in nuclei in the minimal R-symmetric supersymmetric standard model

Low-energy lepton physics in the MRSSM: (g − 2)μ, μ→eγ and μ→e conversion

Searching for lepton flavor violating decays $$\tau \rightarrow Pl$$ in the minimal R-symmetric supersymmetric standard model

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