<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math>-Delayed Deuteron Emission from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi>Li</mml:mi><mml:mprescripts/><mml:none/><mml:mn>11</mml:mn></mml:mmultiscripts></mml:math>: Decay of the Halo
Bibliographic record
Abstract
The deuteron-emission channel in the $\ensuremath{\beta}$ decay of the halo nucleus $^{11}\mathrm{Li}$ was measured at the Isotope Separator and Accelerator facility at TRIUMF by implanting postaccelerated $^{11}\mathrm{Li}$ ions into a segmented silicon detector. The events of interest were identified by correlating the decays of $^{11}\mathrm{Li}$ with those of the daughter nuclei. This method allowed the energy spectrum of the emitted deuterons to be extracted, free from contributions from other channels, and a precise value for the branching ratio ${B}_{d}=1.30(13)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ to be deduced for ${E}_{\mathrm{c}.\mathrm{m}.}>200\text{ }\text{ }\mathrm{keV}$. The results provide the first unambiguous experimental evidence that the decay takes place essentially in the halo of $^{11}\mathrm{Li}$ and that it proceeds mainly to the $^{9}\mathrm{Li}+d$ continuum, opening up a new means to study the halo wave function of $^{11}\mathrm{Li}$.
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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) | 0.002 | 0.003 |
| Meta-epidemiology (broad) | 0.002 | 0.005 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.003 | 0.003 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.004 | 0.005 |
| Research integrity | 0.001 | 0.004 |
| Insufficient payload (model declined to judge) | 0.001 | 0.004 |
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; both teacher heads agree on what is shown here.
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".