Studying Nuclear Responses to Electroweak Probes in Effective Field Theory
Bibliographic record
Abstract
Effective field theory is expected to provide a powerful framework for de-scribing low-energy nuclear phenomena in a model-independent manner. I shall give here a brief account of some of the latest developments in this do-main of nuclear physics. I wish to emphasize the importance of what may be called a symbiotic relation between this new approach and the standard nu-clear physics approach. This feature is particularly important in providing reliable nuclear physics inputs to the latest Sudbury Neutrino Observatory experiments that have given strong evidence for neutrino oscillations. It is well known that the phenomenological potential picture has been ex-tremely successful in describing a great variety of nuclear properties. In this pic-ture, the responses of nuclei to external electroweak probes are given by one-body impulse-approximation terms and exchange-current terms acting on nu-clear wave functions obtained by solving the Shroedinger equation which is gov-erned by a potential; furthermore, the exchange currents (usually taken to be two-body operators) are derived from one-boson exchange diagrams. The vertices
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.001 | 0.004 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 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 source (direct Gemma or distilled Codex), 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".