Detailed spectroscopy and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>γ</mml:mi><mml:mtext>−</mml:mtext><mml:mi>γ</mml:mi></mml:mrow></mml:math> angular correlation measurements of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Xe</mml:mi><mml:mprescripts/><mml:none/><mml:mn>122</mml:mn></mml:mmultiscripts></mml:math>
Bibliographic record
Abstract
Excited states of $^{122}\mathrm{Xe}$ populated via ${\ensuremath{\beta}}^{+}$ and electron capture (EC) decay of $^{122}\mathrm{Cs}$ have been studied with $\ensuremath{\gamma}$-ray spectroscopy using the $8\ensuremath{\pi}$ spectrometer at the TRIUMF Isotope Separator and Accelerator facility. Two sets of data were collected to optimize the signal-to-background ratio for decays of the ground (${t}_{1/2}=21.2$ s) and isomeric (${t}_{1/2}=3.7$ min) states of $^{122}\mathrm{Cs}$. The data collected have enabled the observation of 520 transitions and 191 levels, including eight new excited ${0}^{+}$ states in $^{122}\mathrm{Xe}$. The $\ensuremath{\gamma}\text{\ensuremath{-}}\ensuremath{\gamma}$ angular correlations have been analyzed that permitted the assignment or restriction of the spins for 66 levels. The $E2/M1$ multipolarity mixing ratios for 38 $\ensuremath{\gamma}$-ray transitions were also extracted from these analyses. Low-spin members of the ${0}_{2}^{+}, {0}_{3}^{+}, {0}_{4}^{+}$, and ${K}^{\ensuremath{\pi}}={4}^{+}$ bands are assigned, as well as suggested ${K}^{\ensuremath{\pi}}={2}_{2}^{+}$ and ${K}^{\ensuremath{\pi}}={2}_{3}^{+}$ bandheads. Combined with previous results for high-spin states, rotational bands built on a newly assigned ${K}^{\ensuremath{\pi}}={3}_{1}^{\ensuremath{-}}$ state and its ${4}_{1}^{\ensuremath{-}}$ signature partner, the ${5}_{2}^{\ensuremath{-}}$ and its ${6}_{2}^{\ensuremath{-}}$ signature partner, are suggested. The results for the positive-parity bands are compared with a model using a general Bohr Hamiltonian derived from a mean-field theory based on the UNEDF0 energy-density functional that displays good overall agreement.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.035 | 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; 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".