MétaCan
Menu
Back to cohort
Record W4254994267 · doi:10.24124/2011/bpgub719

Quasiclassical trajectory study of D+HH and H+HD.

2011· dissertation· en· W4254994267 on OpenAlexaff
Glen J. McNamara

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicQuantum, superfluid, helium dynamics
Canadian institutionsCanadian HeritageLibrary and Archives Canada
Fundersnot available
KeywordsDissociation (chemistry)Potential energy surfaceAtomic physicsPhysicsWork (physics)Ground stateInterstellar cloudTrajectoryReaction dynamicsChemistryStarsMoleculePhysical chemistryThermodynamicsAstrophysicsMolecular cloudQuantum mechanics

Abstract

fetched live from OpenAlex

An examination of the dynamical behavior of H + HD and D + H\u2082 in the ground electronic state is performed on the BKMP2 potential energy surface using the quasiclassical trajectory method. The complete set of state-to-state energy transfer and state-specific dissociative cross sections and thermal rate coefficients has been obtained for both systems. Comparisons are made to the H + H\u2082 system to investigate isotopic effects on reactivity and energy transfer. Collision-induced dissociation, exchange reactions, and non-reactive energy transfer are analyzed and compared to previous results on this system, when such are available. As a prototypical three-body system, H + H\u2082 and its isotopic analogues are interesting as benchmarks for both theoretical and experimental methods. The results of this work can be applied to the general field of molecular reaction dynamics, to interstellar physics and chemistry, to models of planetary atmospheres and stellar system formation, and to studies of the effects of isotopes on reaction rates. The work is motivated by astrophysical applications: in particular, the data may be used as inputs for master equation calculations for interstellar gases.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.204
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.012
GPT teacher head0.253
Teacher spread0.242 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2011
Admission routes1
Has abstractyes

Explore more

Same topicQuantum, superfluid, helium dynamicsFrench-language works237,207