<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>-ray spectroscopy of neutron-deficient<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>123</mml:mn></mml:msup></mml:math>Ce
Bibliographic record
Abstract
Excited states have been identified in the very neutron-deficient $Z=58$ nucleus ${}^{123}$Ce. This is the most neutron-deficient odd-$A$ cerium isotope in which excited states have been identified. The states have been unambiguously assigned to ${}^{123}$Ce by detecting de-excitation $\ensuremath{\gamma}$ rays in coincidence with evaporated charged particles and neutrons. Three rotational bands, each consisting of at least eight $E2$ transitions, have been observed. The bands have tentatively been assigned to be based on neutrons in ${g}_{7/2}$ and ${h}_{11/2}$ orbitals. Two of the bands have been assigned to be signature partners, although no interband transitions have been observed. The aligned angular momenta of the bands have been studied in comparison with neighboring nuclei and with the results of Woods-Saxon cranking calculations. Observation of the deformation-dependent $\ensuremath{\pi}{({h}_{11/2})}^{2}$ quasiparticle alignment at 0.36 MeV/$\ensuremath{\hbar}$ in each of the bands suggests a quadrupole deformation of ${\ensuremath{\beta}}_{2}\ensuremath{\simeq}0.3$, in good agreement with theoretical predictions for the suggested possible configuration assignments.
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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 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.004 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.003 | 0.004 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.001 | 0.012 |
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".