Stau detection at neutrino telescopes in scenarios with supersymmetric dark matter

Cañadas, B.; Cerdeño, David G.; Muñoz, Carlos; Panda, Sukanta

doi:10.1088/1475-7516/2009/04/028

Cited by 8 publications

(8 citation statements)

References 72 publications

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“…Finally, long-lived staus might also be searched for in neutrino telescopes after their production inside the Earth from the inelastic scattering of very energetic neutrinos [90,90], although the prediction for their flux is generally very small [91].…”

Section: Long-lived Staus and Big Bang Nucleosynthesismentioning

confidence: 99%

A 119-125 GeV Higgs from a string derived slice of the CMSSM

Aparicio

Cerdeño

Ibáñez

2012

J. High Energ. Phys.

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The recent experimental hints for a relatively heavy Higgs with a mass in the range 119-125 GeV favour supersymmetric scenarios with a large mixing in the stop mass matrix. It has been shown that this is possible in the constrained Minimal Supersymmetric Standard Model (CMSSM), but only for a very specific relation between the trilinear parameter and the soft scalar mass, favouring A ~ -2m for a relatively light spectrum, and sizable values of tan(beta). We describe here a string-derived scheme in which the first condition is automatic and the second arises as a consequence of imposing radiative EW symmetry breaking and viable neutralino dark matter in agreement with WMAP constraints. More specifically, we consider modulus dominated SUSY-breaking in Type II string compactifications and show that it leads to a very predictive CMSSM-like scheme, with small departures due to background fluxes. Imposing the above constraints leaves only one free parameter, which corresponds to an overall scale. We show that in this construction $A=-3\sqrt{2}m\approx -2m$ and in the allowed parameter space tan(beta)=38-41, leading to 119 GeV < m_h < 125 GeV. We determine the detectability of this model and show that it could start being probed by the LHC at 7(8) TeV with a luminosity of 5(2) fb^-1, and the whole parameter space would be accessible for 14 TeV and 25 fb^-1. Furthermore, this scenario can host a long-lived stau with the right properties to lead to catalyzed BBN. We finally argue that anthropic arguments could favour the highest value for the Higgs mass that is compatible with neutralino dark matter, i.e., m_h~125 GeV.Comment: Effects of the new constraint on Bs->mu+mu- included. Final version to appear in JHEP. 45 pages, 14 figure

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Section: Long-lived Staus and Big Bang Nucleosynthesismentioning

confidence: 99%

A 119-125 GeV Higgs from a string derived slice of the CMSSM

Aparicio

Cerdeño

Ibáñez

2012

J. High Energ. Phys.

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“…where M * = (8πG N ) −1/2 ≃ 2.4 × 10 18 GeV is the reduced Planck scale and F ∼ (10 11 GeV) 2 is the supersymmetry-breaking scale squared. The precise ordering of masses depends on unknown, presumably O(1), constants in Eq.…”

Section: Candidates and Relic Densitiesmentioning

confidence: 99%

Non-WIMP candidates

Feng¹

2010

Particle Dark Matter

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There are many non-WIMP dark matter candidates. Two prominent and highly motivated examples are axions and sterile neutrinos, which are reviewed in Chapters 11 and 12, respectively. In addition, there are candidates motivated by minimality, particles motivated by experimental anomalies, and exotic possibilities motivated primarily by the desire of their inventors to highlight how truly ignorant we are about the nature of dark matter.In this brief Chapter, we focus on dark matter candidates that are not WIMPs, but which nevertheless share the most important virtues of WIMPs. As discussed in Chapters 7, 8, and 9, WIMPs have several nice properties:• They exist in well-motivated particle theories.• They are naturally produced with the correct thermal relic density (the "WIMP miracle"). • They predict signals that may be seen in current and near future experiments.

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“…The presence of such particles is predicted in many notable models beyond the standard model, although its identity depends on the models one assumes. CHAMP hunting is indeed one of the major issues of the high energy experiments, and its collider phenomenology is enthusiastically studied [1][2][3][4][5][6][7][8][9][10][11][12][13][14]; it also motivates other researches including neutrino telescope observations [15][16][17] and cosmology [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%