---
{
  "id": "ASD-EXP-TESTS-PRIORITY-EXPERIMENTS-EN",
  "path": "/en/tests/priority-experiments",
  "title": "Priority Experiments",
  "title_en": "Priority Experiments",
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  "summary": "Prioritize apparatus closure for clocks, muons and high-γ charge fields; S301 awaits data. Experimental priorities are distinct from theoretical P0 tasks.",
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      "kind": "external-reference"
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    {
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      "kind": "external-reference"
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      "label": "Wolf et al. (2006), Cold Atom Clock Test of Lorentz Invariance in the Matter Sector",
      "url": "https://arxiv.org/abs/hep-ph/0601024",
      "kind": "external-reference"
    },
    {
      "label": "BACON Collaboration (2021), optical frequency ratio network",
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    "Three acceptance chains",
    "Data gates and common deliverables"
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---
<PriorityExperiments />

## Three acceptance chains

| Project | Calculation chain | Gate to quantitative discrimination |
| --- | --- | --- |
| P1 directional clocks | Spatial construction → transition/reference → transfer → ratio | Independent amplitude/phase, species dependence, covariance and calibration |
| P2 muons | Production → energy loss/path → decay → acceptance → counts | Statistical definition of L′, ASD hazard, shared spectrum and detector selection |
| P3 high-γ charge field | Source → laboratory coordinates → bunch/boundaries → EO response → signal | General source field, crystal response, raw signal and error propagation |

P1/P2/P3 here specify experimental sequencing. P0/P1/P2 on open problems describe research importance. These are separate axes. Workbench example curves support comparison recalculation; they do not mark a priority project complete.

## Data gates and common deliverables

[S301](/en/tests/case-studies/s301) is outside the top three. Even after epochs, covariance and reference frame are available, the present gravity construction must be checked for a genuinely nonzero difference.

Deliver a fixed protocol, source snapshot, Equation IDs, inputs, code, expected output, figure, software version, checksums and explicit failure criteria. Track the first closed discriminator through [OP-EXP-001](/en/open-problems/experiments/quantitative-discriminator). A zero difference is also a reviewable result.