Heavy Sneutrinos as Dark Matter

Keith A. Olive; Mark Srednicki; Toby Falk

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Heavy Sneutrinos as Dark Matter

Toby Falk, Keith A. Olive, Mark Srednicki

High Energy Physics - Phenomenology · Submitted 9 Sep 1994

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We find that the sneutrino relic density is in the cosmologically interesting region $0.1\ltwid\Omega_{\sn}h^2\ltwid 1.0$ for $550\gev\ltwid\msn\ltwid 2300\gev$.

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.84 · human participants 0.02 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.79 · mentions code or data availability 0.02.

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arXiv listing abstract v1. Results and the main claim are underlined; show every role.

We calculate the relic density of very heavy, stable scalar neutrinos in the minimal supersymmetric standard model. We include all two-body final states, as well as the effects of co-annihilation with scalar electrons. We find that the sneutrino relic density is in the cosmologically interesting region $0.1\ltwid\Omega_{\sn}h^2\ltwid 1.0$ for $550\gev\ltwid\msn\ltwid 2300\gev$. For nominal values of the parameters of our galactic halo, recent results from the Heidelberg--Moscow direct detection experiment set an upper limit on $\Omega_{\sn}$ which is lower by a factor ranging from two to ten, depending on $\msn$.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We calculate the relic density of very heavy, stable scalar neutrinos in the minimal supersymmetric standard model.	contribution 0.99	0.96	0.05	asserted 0.77
s1	We include all two-body final states, as well as the effects of co-annihilation with scalar electrons.	method 0.94	0.92	0.03	asserted 0.89
s2	We find that the sneutrino relic density is in the cosmologically interesting region $0.1\ltwid\Omega_{\sn}h^2\ltwid 1.0$ for $550\gev\ltwid\msn\ltwid 2300\gev$.	result 1.00	0.96	0.71	asserted 1.00
s3	For nominal values of the parameters of our galactic halo, recent results from the Heidelberg--Moscow direct detection experiment set an upper limit on $\Omega_{\sn}$ which is lower by a factor ranging from two to ten, depending on $\msn$.	result 0.54	0.21	0.20	asserted 0.99

What kind of paper the classifier reports this is: theoretical result 0.87 · evidence from simulation or computation 0.94.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We calculate the relic density of very heavy, stable scalar neutrinos in the minimal supersymmetric standard model. We include all two-body final states, as well as the effects of co-annihilation with scalar electrons. We find that the sneutrino relic density is in the cosmologically interesting region $0.1\ltwid\Omega_{\sn}h^2\ltwid 1.0$ for $550\gev\ltwid\msn\ltwid 2300\gev$. For nominal values of the parameters of our galactic halo, recent results from the Heidelberg--Moscow direct detection experiment set an upper limit on $\Omega_{\sn}$ which is lower by a factor ranging from two to ten, depending on $\msn$.

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References

Forward citations

Cited by 16 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Global fits of GUT-scale SUSY models with GAMBIT
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Global fits to the CMSSM, NUHM1 and NUHM2 exclude stau co-annihilation in the CMSSM at more than 95% confidence and identify stop co-annihilation as a surviving, LHC-relevant dark matter mechanism in all three models.
Connecting Dark Matter UV Complete Models to Direct Detection Rates via Effective Field Theory
hep-ph 2014-11 conditional novelty 6.0 of 10

One-loop Standard Model running of dimension-6 dark matter effective operators generates spin-independent couplings that exclude multi-TeV mediator scales for heavy-quark, leptophilic, and Higgs-portal WIMP models.
Flavored dark matter beyond Minimal Flavor Violation
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A general dark-matter-quark coupling matrix can satisfy all meson-antimeson mixing constraints if it falls into one of five structural patterns: universality, small mixing, or one of three two-flavor degeneracies.
Flavored Dark Matter, and Its Implications for Direct Detection and Colliders
hep-ph 2011-09 conditional novelty 6.0 of 10

Dark matter carrying tau flavor yields a four-lepton plus missing-energy LHC signal whose charge and flavor pattern can separate it from flavor-blind dark matter models.
Condensation of a Classical Scalar Field After Inflation and Dark Energy
hep-ph 2006-03 conditional novelty 6.0 of 10

A quantum-field-theory calculation shows that a scalar condensate from heavy-particle decay can mimic dark energy only for a narrow, unconstrained back-reaction parameter range.

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Dirac dark matter with a charged mediator: a comprehensive one-loop analysis of the direct detection phenomenology
hep-ph 2015-03 conditional novelty 5.0 of 10

For a Dirac fermion coupled to one Standard Model fermion via a charged scalar, one-loop electromagnetic moments make the LUX xenon limit exclude thermal-relic dark matter up to hundreds of GeV, even when the coupling...
Muon g-2 vs LHC in Supersymmetric Models
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Reinterpreting ATLAS searches for electroweak supersymmetric particles, the authors show the LHC already excludes part of the supersymmetric parameter space that would explain the muon g-2 anomaly.
The Sommerfeld enhancement for scalar particles and application to sfermion co-annihilation regions
hep-ph 2011-02 conditional novelty 5.0 of 10

The Sommerfeld enhancement changes the neutralino relic density by a few percent in stau co-annihilation and up to a factor of five in stop co-annihilation regions of mSUGRA.
Sneutrino cold dark matter, a new analysis: relic abundance and detection rates
hep-ph 2007-09 conditional novelty 5.0 of 10

Sneutrino dark matter survives current direct-detection limits once a right-handed sneutrino field suppresses the Z coupling, and such models predict antiproton, antideuteron and gamma-ray fluxes within reach of PAMEL...
Asymmetric Sneutrino Dark Matter and the Omega(b)/Omega(DM) Puzzle
hep-ph 2004-10 conditional novelty 5.0 of 10

In a variant of the MSSM with mixed sneutrinos, the sneutrino asymmetry is fixed at one-third to one-sixth of the baryon asymmetry, naturally giving a dark matter density comparable to the baryon density.
Physics at a 100 TeV pp collider: beyond the Standard Model phenomena
hep-ph 2016-06 conditional novelty 4.0 of 10

Compiles projected 100 TeV reach estimates for supersymmetry, dark matter, and exotic resonances, finding multi-TeV sensitivity well beyond the LHC in nearly every channel studied.
Z-portal dark matter
hep-ph 2014-11 conditional novelty 4.0 of 10

Combined direct-detection, relic-density, and collider constraints force Z-portal dark matter to couple almost purely axially to the Z boson and to be heavier than about 200 GeV, predicting a spin-dependent neutron cr...
Asymmetric Dark Matter and Dark Radiation
hep-ph 2012-03 conditional novelty 4.0 of 10

A dark sector with light dark radiation and heavier states that heat it produces a calculable extra relativistic energy density, and dark matter scattering off that radiation leaves a measurable imprint on the matter ...
WIMP dark matter candidates and searches - current status and future prospects
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A survey of WIMP dark matter theory and searches that argues the ~1 TeV Higgsino-like neutralino is the most natural surviving supersymmetric candidate and will be tested by tonne-scale underground detectors.
Dark matter and the early Universe: a review
hep-ph 2021-04 conditional novelty 2.0 of 10

The relic density is shown to be adjustable by orders of magnitude through pre-nucleosynthesis cosmology, so it should not be used as a stand-alone constraint on particle dark matter models.
Dark Matter Candidates from Particle Physics and Methods of Detection
astro-ph.CO 2010-03 accept novelty 2.0 of 10

A structured 2010 survey that sorts dark matter candidates by the particle-physics problem motivating each one and tabulates what each predicts for direct detection, indirect detection, colliders, and astrophysics.

How the literature uses it

52 arXiv papers cite this in 63 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 51 sentences without a confident label

Uses its method or tool 1 paper

Next we define [equation] The total annihilation cross section $σ_12(s)$ is given in terms of $w(s)$ by $σ_12(s) = w(s)/s^1/2p_1(s)$ [Our $w(s)$ is also the same as $w(s)$ in [ref] , which is written as $W/4$ in [ref] .].

Gluino Coannihilation Revisited · Appendix A · 0.87

Cites it as support 5 papers

On the premise of explaining both the measured DM density and the muon g-2 anomaly, the DM candidate in the MSSM must be the bino-dominated lightest neutralino [ref] [In the case that the lightest left-handed sneutrino acts as a DM candidate, its interaction with $Z$-boson predicts a much smaller density than its measured value, i.e., $Ωħ^2 ≪0.12$, and meanwhile an unacceptably large DM-nucleon scattering rate [ref] .

Impact of recent measurement of $(g-2)_\mu$, LHC search for supersymmetry, and LZ experiment on Minimal Supersymmetric Standard Model · Dark matter (DM) physics in MSSM · 0.98
Furthermore the sneutrino annihilation rate is usually too rapid to provide enough DM [ref] .

Supersymmetric Dark Matter candidates in light of constraints from collider and astroparticle observables · Introduction · 0.98
This leaves the lightest neutralino as unique WIMP candidate in the MSSM [ref] .

Radiative Corrections to the Neutralino Dark Matter Relic Density - an Effective Coupling Approach · Introduction · 0.97

Cites it as background 5 papers

Several candidates for dark matter particles have been proposed, which include Standard Model neutrinos [ref] , Sterile neutrinos [ref] , Axions [ref] , Supersymmetric particles [ref] , dark matter from Little Higgs models [ref] , Kaluza-Klein dark matter [ref] , WIMPZILLAs [ref] , Cryptons [ref] , primordial black holes [ref] , WIMPs [ref] , and super-heavy X-particles [ref] .

Ultra High Energy Cosmic Rays from decays of Holeums in Galactic Halos · Background · 0.99
Several candidates for DM particles have been proposed, which include Standard Model neutrinos [ref] , Sterile neutrinos [ref] , Axions [ref] , Supersymmetric particles [ref] , dark matter from Little Higgs models [ref] , Kaluza-Klein dark matter [ref] , WIMPZILLAs [ref] , Cryptons [ref] , primordial black holes [ref] , WIMPs [ref] , and super-heavy X-particles [ref] .

Quantized Gravitational Radiation from Black Holes and other Macro Holeums in the Low Frequency Domain · Introduction · 0.97
Several specific dark matter candidates of this type have been studied extensively in the literature, including sneutrino dark matter [ref] (for recent work see [ref] ) in the Minimal Supersymmetric Standard Model (MSSM), and Kaluza-Klein (KK) neutrino dark matter [ref] in models with a universal extra dimension (UED).

Flavored Dark Matter, and Its Implications for Direct Detection and Colliders · Introduction · 0.95

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