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Record W2041622101 · doi:10.1103/physrevc.66.054606

Semiexclusive pionic double charge exchange on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:math>

2002· article· lv· W2041622101 on OpenAlexfundno aff
J Clark, M. E. Sevior, H. Clement, J. Gräter, Rudolf Meier, Gerhard Wagner, P. Amaudruz, L. Felawka, G. Hofman, D. Ottewell, G.R. Smith, A. Ambardar, M. Kermani, G. Tagliente, P. Camerini, E. Fragiacomo, N. Grion, R. Rui, E. L. Mathie, R. Tacik, D. M. Yeomans, E. F. Gibson, J. Brack, M. Schepkin

Bibliographic record

VenuePhysical Review C · 2002
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicQuantum Chromodynamics and Particle Interactions
Canadian institutionsnot available
FundersAustralian Research CouncilNatural Sciences and Engineering Research Council of CanadaBundesministerium für Bildung und ForschungDeutsche ForschungsgemeinschaftInstituto Nazionale di Fisica NucleareTRIUMF
KeywordsCharge exchangePhysicsCharge (physics)PionKinetic energySpectral lineParticle physicsResonance (particle physics)Atomic physicsNuclear physicsIonQuantum mechanics

Abstract

fetched live from OpenAlex

The semiexclusive reaction ${}^{4}\mathrm{He}({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{\ensuremath{-}}pp)pp$ has been studied at pion kinetic energies of 105 MeV and 115 MeV. Signatures from the production of the hypothetical $\ensuremath{\pi}\mathrm{NN}$ resonance ${d}^{\ensuremath{'}}$ have been searched for in the invariant mass ${M}_{\ensuremath{\pi}\mathrm{pp}}$ spectra. No hint for a dominant ${d}^{\ensuremath{'}}$ production, as anticipated from double charge exchange excitation functions on nuclei, has been found. The data are satisfactorily described by sequential single charge exchange.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.822
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.002
Meta-epidemiology (broad)0.0010.003
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0010.002
Open science0.0020.002
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.4330.012

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 head0.023
GPT teacher head0.268
Teacher spread0.245 · 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; both teacher heads agree on what is shown here.

Study designTheoretical or conceptual
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

Citations5
Published2002
Admission routes1
Has abstractyes

Explore more

Same venuePhysical Review CSame topicQuantum Chromodynamics and Particle InteractionsFrench-language works237,207