New Features of Shape Coexistence in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi>Sm</mml:mi><mml:mprescripts/><mml:none/><mml:mn>152</mml:mn></mml:mmultiscripts></mml:math>
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Excited states in $^{152}\mathrm{Sm}$ have been investigated with the $^{152}\mathrm{Sm}(n,{n}^{\ensuremath{'}}\ensuremath{\gamma})$ reaction. The lowest four negative-parity band structures have been characterized in detail with respect to their absolute decay properties. Specifically, a new ${K}^{\ensuremath{\pi}}={0}^{\ensuremath{-}}$ band has been assigned with its ${1}^{\ensuremath{-}}$ band head at 1681 keV. This newly observed band has a remarkable similarity in its $E1$ transition rates for decay to the first excited ${K}^{\ensuremath{\pi}}={0}^{+}$ band at 684 keV to the lowest ${K}^{\ensuremath{\pi}}={0}^{\ensuremath{-}}$ band and its decay to the ground-state band. Based on these decay properties, as well as energy considerations, this new band is assigned as a ${K}^{\ensuremath{\pi}}={0}^{\ensuremath{-}}$ octupole excitation based on the ${K}^{\ensuremath{\pi}}={0}_{2}^{+}$ state. An emerging pattern of repeating excitations built on the ${0}_{2}^{+}$ level similar to those built on the ground state may indicate that $^{152}\mathrm{Sm}$ is a complex example of shape coexistence rather than a critical point nucleus.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.000 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 0.002 |
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 it