Multicomponent dark matter in supersymmetric hidden sector extensions

Feldman, Daniel; Liu, Zuowei; Nath, Pran; Peim, Gregory

doi:10.1103/physrevd.81.095017

Cited by 112 publications

(119 citation statements)

References 156 publications

(141 reference statements)

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“…Now in the leptonic sector it is known [22] that for the standard model case we may choose one of the linear combinations L e − L µ , L µ − L τ , L e − L τ to be anomaly free and can be gauged. The gauged L e − L µ has been discussed previously in the context of PAMELA positron excess and multi-component dark matter [8] and L µ − L τ in the context of muon anomalous moment [23] and in the context the PAMELA positron excess [24]. Here we consider a gauged L µ − L τ in the discussion of asymmetric dark matter as this choice is the more appropriate one for the analysis here.…”

Section: Introductionmentioning

confidence: 99%

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Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension

2012

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We discuss the possibility of the cosmic coincidence generating the ratio of baryon asymmetry to dark matter in a Stueckelberg U (1) extension of the standard model and of the minimal supersymmetric standard model. For the U (1) we choose L µ −L τ which is anomaly free and can be gauged. The dark matter candidate arising from this extension is a singlet of the standard model gauge group but is charged under L µ −L τ . Solutions to the Boltzmann equations for relics in the presence of asymmetric dark matter are discussed. It is shown that the ratio of the baryon asymmetry to dark matter consistent with the current WMAP data, i.e., the cosmic coincidence, can be successfully explained in this model with the depletion of the symmetric component of dark matter from resonant annihilation via the Stueckelberg gauge boson. For the extended MSSM model it is shown that one has a two component dark matter picture with asymmetric dark matter being the dominant component and the neutralino being the subdominant component (i.e., with relic density a small fraction of the WMAP cold dark matter value). Remarkably, the subdominant component can be detected in direct detection experiments such as SuperCDMS and XENON-100. Further, it is shown that the class of Stueckelberg models with a gauged L µ − L τ will produce a dramatic signature at a muon collider with the σ(µis devoid of this resonance. Within the above frameworks we discuss several broad classes of models both above and below the electroweak phase transition temperature. Asymmetric dark matter arising from a U (1) B−L Stueckelberg extension is also briefly discussed. Finally, in the models we propose the asymmetric dark matter does not oscillate and there is no danger of it being washed out from oscillations.

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Section: Introductionmentioning

confidence: 99%

“…In this manuscript we analyze this issue in the framework of a Stueckelberg U (1) extension of the standard model (SM) as well as a Stueckelberg U (1) extension of the minimal supersymmetric standard model (MSSM) [3][4][5][6][7][8][9]. There are two main constraints in building models with asymmetric dark matter (AsyDM).…”

Section: Introductionmentioning

confidence: 99%

Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension

2012

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“…We define (Ω χ h 2 ) WMAP ≡ 0.1120, the central value from the WMAP-7 data. Only taking the WMAP upper limit allows for the possibility of multicomponent dark matter [46]. Other constraints applied to the mSUGRA parameter points include the g µ − 2 [47] constraint −11.4 × 10 −10 ≤ δ (g µ − 2) ≤ 9.4 × 10 −9 and constraints from B-physics measurements [48][49][50] which yield flavor constraints from the data, i.e.…”

Section: Higgs Mass In Minimal Sugramentioning

confidence: 99%

Higgs boson mass predictions in supergravity unification, recent LHC-7 results, and dark matter

et al. 2012

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LHC-7 has narrowed down the mass range of the light Higgs boson. This result is consistent with the supergravity unification framework, and the current Higgs boson mass window implies a rather significant loop correction to the tree value, pointing to a relatively heavy scalar sparticle spectrum with universal boundary conditions. It is shown that the largest value of the Higgs boson mass is obtained on the Hyperbolic Branch of radiative breaking. The implications of light Higgs boson in the broader mass range of 115 GeV to 131 GeV and a narrower range of 123 GeV to 127 GeV are explored in the context of the discovery of supersymmetry at LHC-7 and for the observation of dark matter in direct detection experiments.

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“…We recall that Stückelberg fields appear both in anomalous and in non-anomalous contexts. The second one has been analyzed recently in [54].…”

Section: A General Features Of the Modelmentioning

confidence: 99%

Relic densities of dark matter in the U(1)-extended NMSSM and the gauged axion supermultiplet

2012

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We compute the dark matter relic densities of neutralinos and axions in a supersymmetric model with a gauged anomalous U (1) symmetry. The model is a variant of the USSM (the U (1) extended NMSSM), containing an extra U (1) symmetry and an extra singlet in the superpotential respect to the MSSM, where gauge invariance is restored by Peccei-Quinn interactions using a Stückelberg multiplet. This approach introduces an axion (Im b) and a saxion (Re b) in the spectrum and generates an axino component for the neutralino. The Stückelberg axion (Im b) develops a physical component (the gauged axion) after electroweak symmetry breaking. We classify all the interactions of the Lagrangian and perform a complete simulation study of the spectrum, determining the neutralino relic densities using micrOMEGAs. We discuss the phenomenological implications of the model analyzing mass values for the axion from the milli-eV to the MeV region. These depend sensitively on the value of tan β.The possible scenarios that we analyze are significantly constrained by a combination of WMAP data, the exclusion limits from direct axion searches and the veto on late entropy release at the time of nucleosynthesis.

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Multicomponent dark matter in supersymmetric hidden sector extensions

Cited by 112 publications

References 156 publications

Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension

Cosmic coincidence and asymmetric dark matter in a Stueckelberg extension

Higgs boson mass predictions in supergravity unification, recent LHC-7 results, and dark matter

Relic densities of dark matter in the U(1)-extended NMSSM and the gauged axion supermultiplet

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