Molecular-beam optical Stark and Zeeman study of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>A</mml:mi></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup><mml:mi>Π</mml:mi></mml:mrow></mml:math>--<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>X</mml:mi></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mi>Σ</mml:mi><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>(0,0) band system of BaF
Bibliographic record
Abstract
The $A{ }^{2}\ensuremath{\Pi}\ensuremath{-}X{ }^{2}{\ensuremath{\Sigma}}^{+}$ (0,0) band system of barium monofluoride (BaF) has been recorded using high-resolution laser-induced fluorescence spectroscopy both field-free and in the presence of static magnetic and electric fields. The field-free spectra for the $^{135}\mathrm{Ba}$F, $^{137}\mathrm{Ba}$F, and $^{138}\mathrm{Ba}$F isotopologues were modeled to generate an improved set of spectroscopic constants for the $A{ }^{2}$\ensuremath{\Pi}($\ensuremath{\upsilon}$ $=$ 0) and $X{ }^{2}$\ensuremath{\Sigma}${}^{+}$($\ensuremath{\upsilon}$ $=$ 0) states. The observed optical Stark shifts for the $^{138}\mathrm{Ba}$F isotopologue were analyzed to produce the permanent electric dipole moments of 1.50(2) and 1.31(2) D for the $A{ }^{2}$\ensuremath{\Pi}${}_{1/2}$($\ensuremath{\upsilon}$ $=$ 0) and $A{ }^{2}$\ensuremath{\Pi}${}_{3/2}$ ($\ensuremath{\upsilon}$ $=$ 0) states, respectively. The observed optical Zeeman shifts for the $^{138}\mathrm{Ba}$F isotopologue were analyzed to produce a set of magnetic $g$ factors for the $A{ }^{2}$\ensuremath{\Pi}($\ensuremath{\upsilon}$ $=$ 0) and $X{ }^{2}$\ensuremath{\Sigma}${}^{+}$($\ensuremath{\upsilon}$ $=$ 0) states.
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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 | 0.007 | 0.007 |
| Meta-epidemiology (narrow) | 0.005 | 0.010 |
| Meta-epidemiology (broad) | 0.002 | 0.011 |
| Bibliometrics | 0.002 | 0.006 |
| Science and technology studies | 0.007 | 0.010 |
| Scholarly communication | 0.005 | 0.007 |
| Open science | 0.011 | 0.012 |
| Research integrity | 0.009 | 0.009 |
| Insufficient payload (model declined to judge) | 0.245 | 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".