A complete calculation for direct detection of Wino dark matter

Hisano, Junji; Ishiwata, Koji; Nagata, Natsumi

doi:10.1016/j.physletb.2010.05.047

Cited by 80 publications

(107 citation statements)

References 34 publications

(38 reference statements)

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“…This implies that the scattering cross section is suppressed by additional loop factor compared with the MSSM expectations. Scattering due to W-loops is too weak [37] to be observed in the present stage of XENON100 [47].…”

Section: Discussionmentioning

confidence: 67%

“…Fifth, the constraints on dark matter are relaxed. Because neutralino elastic scattering off nuclei is dominated by tree-level Higgs boson exchange, this process would be suppressed and the prospects for dark matter discovery at the XENON100 are decreased in this scenario [37]. As the SUSY scale could now be large, Higgsino or wino relic abundance would become a natural explanation to the dark matter of the Universe.…”

Section: Introductionmentioning

confidence: 99%

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Fermiophobic Higgs boson and supersymmetry

et al. 2012

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If a light Higgs boson with mass 125 GeV is fermiophobic, or partially fermiophobic, then the minimal supersymmetric standard model is excluded. The minimal supersymmetric fermiophobic Higgs scenario can naturally be formulated in the context of the next-to-minimal supersymmetric standard model (NMSSM) that admits Z 3 discrete symmetries. In the fermiophobic NMSSM, the supersymmetry naturalness criteria are relaxed by a factor N c y 4 t =g 4 $ 25, removing the little hierarchy problem and allowing sparticle masses to be naturally of order 2-3 TeV. This scale motivates wino or Higgsino dark matter. The SUSY flavor and CP problems as well as the constraints on sparticle and Higgs boson masses from b ! s , B s ! and direct LHC searches are relaxed in the fermiophobic NMSSM. The price to pay is that a new, yet unknown, mechanism must be introduced to generate fermion masses. We show that in the fermiophobic NMSSM the radiative Higgs boson branchings to , Z can be modified compared to the fermiophobic and ordinary standard model predictions, and fit present collider data better. Suppression of dark matter scattering off nuclei explains the absence of signal in XENON100.

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Section: Discussionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Fermiophobic Higgs boson and supersymmetry

et al. 2012

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“…(23). Proton lifetimes based on lepton Yukawas are significantly smaller (by a factor of roughly 20), so that τ l p < 5 × 10 33 years when tan β 6 and is still smaller than 2 × 10 34 years when tan β > 4.…”

Section: Resultsmentioning

confidence: 97%

“…However, this scenario is already under tension from existing indirect detection experiments [19]. The direct detection of wino dark matter is challenging as its scattering cross section with a nucleon is as small as 10 −47 cm 2 [20]. A Higgsino signature at the LHC is another possible observable which arises from tuning µ to be small [21].…”

Section: Introductionmentioning

confidence: 99%

SU(5) grand unification in pure gravity mediation

2015

Self Cite

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We discuss the proton lifetime in pure gravity mediation models with nonuniversal Higgs soft masses. Pure gravity mediation offers a simple framework for studying SU(5) grand unified theories with a split supersymmetry like spectra. We find that for much of the parameter space gauge coupling unification is quite good leading to rather long lifetimes for the proton. However, for m 3/2 ∼ 60 TeV and tan β ∼ 4, for which gauge coupling unification is also good, the proton lifetime is short enough that it could be in reach of future experiments.

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“…Points in blue have a relic abundance contribution with more than 10 % and they have an early detection possibility, while points in green have a relic density less than 10 % and direct detection for them may be delayed depending on the mass and composition. While higher order calculations for direct detection of purely wino DM has been studied [34,35] and found to boost direct detection, we are not using them, since we are exploiting a small Higgsino fraction in the neutralino, which increases direct detection, while having co-annihilations to yield under-abundance.…”

mentioning

confidence: 99%

Supersymmetric left–right model with radiative neutrino mass and multipartite dark matter

Bhattacharya

Wegman

2014

Eur. Phys. J. C

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We propose a unified extension of the standard model with three types of coexisting dark matter, motivated by three well-studied scenarios: (1) supersymmetry with R-parity conservation, (2) left-right symmetry where the SU (2) R doublet is not (ν, e) R but (n, e) R where n is a dark-matter candidate, and (3) a one-loop radiative neutrino mass model where the particles in the loop have an odd Z 2 symmetry, the lightest of which is also a dark-matter candidate. Whereas there are many new particles in this model, the gauge couplings get unified in the same way as in the minimal supersymmetric standard model (MSSM). Since there are at least three dark-matter candidates, each one's share of the total relic density of the Universe is adjustable, allowing for a much larger parameter space for the MSSM candidate itself. Our main focus is a careful study of a possible specific multipartite dark-matter scenario in this context.

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A complete calculation for direct detection of Wino dark matter

Cited by 80 publications

References 34 publications

Fermiophobic Higgs boson and supersymmetry

Fermiophobic Higgs boson and supersymmetry

SU(5) grand unification in pure gravity mediation

Supersymmetric left–right model with radiative neutrino mass and multipartite dark matter

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