Neutralino dark matter scattering and Bs→μ+μ− in SUSY models

Baek, Seungwon; Kim, Yeong Gyun; Ko, Pyungwon

doi:10.1088/1126-6708/2005/02/067

Cited by 29 publications

(29 citation statements)

References 13 publications

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“…As a result, in many realistic scenarios it is not easy to suppress LFV entries in the slepton mass matrices below the 10 −4 level [38]. 11 For a recent and detailed analysis on the bounds for LFV soft breaking term as functions of the relevant SUSY parameters (without assuming the present g − 2 anomaly as a hint of New Physics), see Ref. [46].…”

Section: Discussionmentioning

confidence: 99%

“…The interplay of (g − 2) µ , B(B s,d → ℓ + ℓ − ), B(B → X s γ), and dark-matter constraints in the MSSM have been addressed in a series of recent works, focusing both on relic abundance [10] and on direct WIMPs searches [11]. Our analysis is complementary to those studies for two main reasons: i) the inclusion of B(B → τ ν), which starts to play a significant role in the large tan β regime, and will become even more significant in the near future; ii) the study of a phenomenologically interesting region of the MSSM parameter space which goes beyond the scenarios analysed in most previous studies (see Section 2).…”

Section: Introductionmentioning

confidence: 99%

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Flavor physics at large tanβwith a binolike lightest supersymmetric particle

et al. 2007

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The MSSM with large tan β and heavy squarks (Mq > ∼ 1 TeV) is a theoretically well motivated and phenomenologically interesting extension of the SM. This scenario naturally satisfies all the electroweak precision constraints and, in the case of not too heavy slepton sector (Ml < ∼ 0.5 TeV), can also easily accommodate the (g − 2) µ anomaly. Within this framework non-standard effects could possibly be detected in the near future in a few lowenergy flavour-violating observables, such as B(B → τ ν), B(B s,d → ℓ + ℓ − ), B(B → X s γ), and B(µ → eγ). Interpreting the (g − 2) µ anomaly as the first hint of this scenario, we analyse the correlations of these low-energy observables under the additional assumption that the relic density of a Bino-like LSP accommodates the observed dark matter distribution.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flavor physics at large tanβwith a binolike lightest supersymmetric particle

et al. 2007

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“…And the coannihilation mechanism for the DM relic density is not favoured as a solution to b → sµµ anomaly. This shows a strong interplay between the flavour physics and DM phenomena [16,48,[57][58][59][60][61][62], which will be discussed in the next Section in more detail. Once X I X I → Z Z is kinematically open near m I = m Z , it dominates the annihilation processes, which is not so sensitive to m R .…”

Section: The Dark Mattermentioning

confidence: 84%

Scalar dark matter behind b → sμμ anomaly

Baek

2019

J. High Energ. Phys.

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We construct a scalar dark matter model with U (1) Lµ−Lτ symmetry in which the dark matter interacts with the quark flavours, allowing lepton non-universal b → s ¯ decays. The model can solve b → sµµ (R K ( * ) ) anomaly and accommodate the relic abundance of dark matter simultaneously while satisfying the constraints from other low energy flavour experiments and direct detection experiments of dark matter. The new fields include vector-like heavy quarks U and D, U (1) Lµ−Lτ breaking scalar S, as well as the dark matter candidate X I and its heavy partner X R . To explain both b → sµµ anomaly and the dark matter, i) large mass difference between X R and X I is required, ii) electroweak scale dark matter and heavy quarks are favoured, iii) not only electroweak scale but O(10) TeV dark gauge boson Z and X R are allowed.

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“…The decay rate can be enhanced relative to the SM by over 2 orders of magnitude at large tan values. The search is also sensitive to supersymmetry (SUSY) in cosmologically consistent scenarios [6][7][8][9]. Other models, such as R-parity violating SUSY [6], the littlest Higgs model with T-parity [10], or models with extra dimensions [11,12], predict large effects independent of the value of tan .…”

Section: Introductionmentioning

confidence: 99%

Erratum: Search for Bs0→μ+μ− and

Aaltonen¹,

Amerio²,

Amidei³

et al. 2018

Phys. Rev. D

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We report on a search for B 0 s ! þ À and B 0 ! þ À decays using proton-antiproton collision data at ffiffi ffi s p ¼ 1:96 TeV corresponding to 10 fb À1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B 0 candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of BðB 0 ! þ À Þ < 4:6 Â 10 À9 at 95% confidence level. We observe an excess of B 0 s candidates. The probability that the background processes alone could produce such an excess or larger is 0.94%. The probability that the combination of background and the expected standard model rate of B 0 s ! þ À could produce such an excess or larger is 6.8%. These data are used to determine a branching fraction BðB

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Neutralino dark matter scattering and B_s→μ⁺μ⁻ in SUSY models

Cited by 29 publications

References 13 publications

Flavor physics at large tanβwith a binolike lightest supersymmetric particle

Flavor physics at large tanβwith a binolike lightest supersymmetric particle

Scalar dark matter behind b → sμμ anomaly

Erratum: Search for Bs0→μ+μ− and

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