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Record W7163028724 · doi:10.6082/k2fdc-6w378

Searching for Dark Matter with the Sudbury Neutrino Observatory

2021· dissertation· en· W7163028724 on OpenAlexaboutno aff
A. Latorre

Bibliographic record

VenueUniversity of Chicago · 2021
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicDark Matter and Cosmic Phenomena
Canadian institutionsnot available
Fundersnot available
KeywordsDark matterNeutrinoObservatoryWarm dark matterWeakly interacting massive particlesHot dark matterPhysics beyond the Standard ModelScalar field dark matter

Abstract

fetched live from OpenAlex

Dark matter currently makes up approximately 84% of the matter in our universe, but has yet to be observed. A recent model by Grossman, Harnik, Telem, and Zhang proposes a new form of dark matter called self-destructing matter which could decay to standard model leptons after an interaction in Earth. Motivated by this model, in this analysis we perform two distinct analyses looking at high energy events in the Sudbury Neutrino Observatory data between 1999 and 2003. In the first, we perform a null hypothesis test on the data between 20 MeV and 10 GeV to look for any data which is not consistent with atmospheric neutrinos and find no evidence for new physics. In the second analysis we perform a dedicated search for back to back lepton pairs from a slow dark mediator in the self-destructing dark matter model. We find no evidence for the self-destructing dark matter and place new limits on the rate of these events.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.032
Threshold uncertainty score0.064

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0040.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.207
Teacher spread0.198 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2021
Admission routes1
Has abstractyes

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