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 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 | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.004 |
| Meta-epidemiology (broad) | 0.001 | 0.004 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.003 | 0.003 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.004 | 0.005 |
| Research integrity | 0.002 | 0.004 |
| Insufficient payload (model declined to judge) | 0.034 | 0.008 |
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".