Memorandum of Understanding for the 2006 Meson Test Beam Program: The FP420 (CMS+ATLAS) Fast Timing Test
Bibliographic record
Abstract
This is a memorandum of understanding between the Fermi National Accelerator Laboratory and University of Texas at Arlington (UTA) and the University of Alberta experimenters who have committed to participate in beam tests to be carried out during the 2006 Meson Test Beam Facility program. The memorandum is intended solely for the purpose of providing a budget estimate and a work allocation for Fermilab, the funding agencies and the participating institutions. It reflects an arrangement that currently is satisfactory to the parties; however, it is recognized and anticipated that changing circumstances of the evolving research program will necessitate revisions. The parties agree to negotiate amendments to this memorandum, which will reflect such required adjustments. The experimenters require beam time at Fermilab during the 2006 Meson Test Beam Run to test charged particle detectors with very high timing resolution, σ(t) ~ 10-20 ps. The primary goal of such detectors is to measure the time-of -flight of leading (diffractively scattered) protons at the LHC (CMS and/or ATLAS) 420m from the collision point. The experimenters aim to measure at the LHC the exclusive process pp → p + H + p where H is the Higgs boson. Observation of this process, which appears feasible but difficult, will enable the Higgs boson mass to be measured with a resolution ~ 2 GeV per event, measure its spin and CP (expected to be 0++), its coupling to gg (through a top-loop in the Standard Model) and its width (if Γ(H) > ~ 3 GeV). As the cross section is expected to be small, 1 - 10 fb for Standard Model Higgs (but possibly much larger in SUSY scenarios), it is imperative to use high luminosity with many interactions per beam crossing. One of several methods of reducing pile-up background, where the two protons and the central JJ/WW/ZZ are not all from the same event, is to have precision timing on the two forward protons relative to each other. A time resolution of 20 ps will give a 6 mm ÷ √2 = 4.3 mm resolution in z(interaction), if the protons came from the same interaction. This z(pp) must match z(vertex) from the JJ/WW/ZZ event.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".