The dissociation adiabaticity parameter and the strong field dissociation of H2+
Bibliographic record
Abstract
Walsh et al. have proposed a dissociation adiabaticity parameter, γDv≡(Dv/2Upm)1/2, where Dv is the dissociation energy from vibrational state v and Upm is the molecular ion system’s ponderomotive energy [T. D. G. Walsh, L. Strach, and S. L. Chin, J. Phys. B 31, 4853 (1998)]. We modify this parameter and assess its utility in the interpretation of kinetic energy distributions of the atoms and protons that are produced by quantum wave-packet simulations of the H2+ dissociation process. This modified parameter, γmol, is found to be a useful indicator of when a dissociation process can be best described using multiphoton processes involving field dressed electronic states (γmol>1) or when it can be better described in the quasistatic approximation as barrier suppressed dissociation (γmol<1). Field dressed electronic states and oscillating potential energy curve tails govern the behavior at the extreme values of γmol, i.e., γmol≫1 or ≪1, respectively.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
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".