Electroweak baryogenesis and electron EDM in the B-LSSM

Yang, Jin-Lei; Feng, Tao; Zhang, Hai-Bin

doi:10.1140/epjc/s10052-020-7753-9

Cited by 16 publications

(11 citation statements)

References 92 publications

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“…where B, L represent the baryon number and lepton number respectively, and the details about the representations of the gauge groups and their breaking can be found in Refs. [38][39][40][41][42][43]. In the model, tiny neutrino masses are acquired by the so-called type I seesaw mechanism, when the U(1) B−L symmetry is spontaneously broken by the two additional scalar singlet Higgs.…”

Section: B-lssmmentioning

confidence: 99%

“…B − L symmetric SSM (B-LSSM) and the TeV scale left-right symmetric model (LRSM), having LNV source which is needed for the 0ν2β decays, are two types of typical extended SM models [34][35][36][37][38][39][40][41][42][43]. In the B-LSSM three generations of right-handed neutrinos and two chiral singlet scalars are introduced and the right-handed neutrinos acquire Majorana masses as the two singlet scalars receive vacuum expectation values (VEVs).…”

Section: Introductionmentioning

confidence: 99%

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Nuclear $0\nu2β$ decays in $B-L$ symmetric SUSY model and in TeV scale left-right symmetric model

Yang,

Chang,

Feng

2021

Preprint

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In this paper we take B-L supersymmetric standard model (B-LSSM) and TeV scale left-right symmetric model (LRSM) as two types of typical ones beyond SM to study the nuclear neutrinoless double beta decays (0ν2β) and to see the senses for the present data and the expected data in the near future of the decays. In the study we pay much attention onto the QCD corrections in the energy-scale region from µ = M W to µ ≃ 1.0 GeV, but we treat the nuclear effects in the decays as done in the relevant literatures. For these two models the decay half-life of the nuclei, 76 Ge and 136 Xe, T 0ν 1/2 ( 76 Ge, 136 Xe), are precisely estimated with the model parameters allowed by experiments and the results are presented properly. Results show that the concerned QCD corrections to the half-life of the 0ν2β decays for the two models are quite sizable. The interference effects between the different contributions happened only in the model LRSM are specially analyzed. According to the numerical results, an optimistic conclusion is obtained that the 0ν2β decays for the models may be observed in the next generation of the underground observations.

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Section: B-lssmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nuclear $0\nu2β$ decays in $B-L$ symmetric SUSY model and in TeV scale left-right symmetric model

Yang,

Chang,

Feng

2021

Preprint

Self Cite

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“…The framework of the B-LSSM has been discussed detailedly in our previous works [106][107][108], which contain the particle content, the superpotential, the soft breaking terms, some mass matrices and interaction vertices. We do not introduce the model in detail in this work, but some relevant mass matrices will be given in section 2 for analyzing the numerical results clearly.…”

Section: Introductionmentioning

confidence: 99%

Muon (g − 2) in the B-LSSM

Yang

Zhang

Liu

et al. 2021

J. High Energ. Phys.

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The difference between the updated experimental result on the muon anomalous magnetic dipole moment and the corresponding theoretical prediction of the standard model on that is about 4.2 standard deviations. In this work, we calculate the muon anomalous MDM at the two-loop level in the supersymmetric B − L extension of the standard model. Considering the experimental constraints on the lightest Higgs boson mass, Higgs boson decay modes h → γγ, WW, ZZ, $$ b\overline{b} $$ b b ¯ , $$ \tau \overline{\tau} $$ τ τ ¯ , B rare decay $$ \overline{B} $$ B ¯ → Xsγ, and the transition magnetic moments of Majorana neutrinos, we analyze the theoretical predictions of the muon anomalous magnetic dipole moment in the B − L supersymmetric model. The numerical analyses indicate that the tension between the experimental measurement and the standard model prediction is remedied in the B − L supersymmetric model.

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“…Then the possibility of baryogenesis via leptogenesis will be well explained. Furthermore, due to the introduction of the additional singlet Higgs states and right-handed (s)neutrinos, B-LSSM alleviates the hierarchy problem through additional parameter space released from the LEP, Tevatron and LHC constraints [11,12]. Other than this, the model can also provide much more dark matter candidates [13][14][15][16] than the MSSM.…”

Section: Introductionmentioning

confidence: 99%

Gravitational waves from the phase transition in the B-LSSM

Dong

Feng

Zhang

et al. 2021

J. High Energ. Phys.

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Based on the gauge symmetry group SU(3)C ⨂ SU(2)L ⨂ U(1)Y ⨂ U(1)B–L, the minimal supersymmetric extension of the SM with local B-L gauge symmetry(B-LSSM) has been introduced. In this model, we study the Higgs masses with the one-loop zero temperature effective potential corrections. Besides, the finite temperature effective potentials connected with two U(1)B-L Higgs singlets are deduced specifically. Then we can obtain the gravitational wave spectrums generated from the strong first-order phase transition. In the B-LSSM, with the fine-tuned parameter regions, we can obtain the strength parameter αθ ~ 0.14 and the ratio of speed to Hubble rate β/Hn ~ 5 at nucleation temperature, and then obtain observable gravitational wave signals. The gravitational wave signals can be as strong as h2ΩGW ~ 10–9, which may be detectable in the future experiments.

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Electroweak baryogenesis and electron EDM in the B-LSSM

Cited by 16 publications

References 92 publications

Nuclear $0\nu2β$ decays in $B-L$ symmetric SUSY model and in TeV scale left-right symmetric model

Nuclear $0\nu2β$ decays in $B-L$ symmetric SUSY model and in TeV scale left-right symmetric model

Muon (g − 2) in the B-LSSM

Gravitational waves from the phase transition in the B-LSSM

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