Measurement of the muon neutrino inclusive charged-current cross section in the energy range of 1–3 GeV with the T2K INGRID detector
Bibliographic record
Abstract
We report a measurement of the ${\ensuremath{\nu}}_{\ensuremath{\mu}}$-nucleus inclusive charged-current cross section ($={\ensuremath{\sigma}}^{cc}$) on iron using data from the INGRID detector exposed to the J-PARC neutrino beam. The detector consists of 14 modules in total, which are spread over a range of off-axis angles from 0\ifmmode^\circ\else\textdegree\fi{} to 1.1\ifmmode^\circ\else\textdegree\fi{}. The variation in the neutrino energy spectrum as a function of the off-axis angle, combined with event topology information, is used to calculate this cross section as a function of neutrino energy. The cross section is measured to be ${\ensuremath{\sigma}}^{cc}(1.1\text{ }\text{ }\mathrm{GeV})=1.10\ifmmode\pm\else\textpm\fi{}0.15$ $(1{0}^{\ensuremath{-}38}\text{ }\text{ }{\mathrm{cm}}^{2}/\text{nucleon})$, ${\ensuremath{\sigma}}^{cc}(2.0\text{ }\text{ }\mathrm{GeV})=2.07\ifmmode\pm\else\textpm\fi{}0.27$ $(1{0}^{\ensuremath{-}38}\text{ }\text{ }{\mathrm{cm}}^{2}/\text{nucleon})$, and ${\ensuremath{\sigma}}^{cc}(3.3\text{ }\text{ }\mathrm{GeV})=2.29\ifmmode\pm\else\textpm\fi{}0.45$ $(1{0}^{\ensuremath{-}38}\text{ }\text{ }{\mathrm{cm}}^{2}/\text{nucleon})$, at energies of 1.1, 2.0, and 3.3 GeV, respectively. These results are consistent with the cross section calculated by the neutrino interaction generators currently used by T2K. More importantly, the method described here opens up a new way to determine the energy dependence of neutrino-nucleus cross sections.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| 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".