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Accurate Test of Chiral Dynamics in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mover accent="true"><mml:mi>γ</mml:mi><mml:mo>→</mml:mo></mml:mover><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mi>p</mml:mi></mml:math>Reaction

2013· article· lv· W2070839158 on OpenAlex
D. Hornidge, P. Aguar Bartolomé, J. R. M. Annand, H. J. Arends, R. Beck, V. Bekrenev, H. Berghäuser, A. M. Bernstein, A. Braghieri, W. J. Briscoe, S. Cherepnya, M. Dieterle, E. J. Downie, P. Drexler, C. Fernández-Ramírez, L.V. Filʼkov, D. I. Glazier, Pauline Hall Barrientos, E. Heid, M. Hilt, I. Jaeglé, Oliver Jahn, T. C. Jude, V. L. Kashevarov, I. Keshelashvili, R. Kondratiev, M. Korolija, A. Koulbardis, D. Krambrich, S. P. Kruglov, B. Krusche, A. T. Laffoley, V. Lisin, K. Livingston, I. J. D. MacGregor, J. Mancell, D. M. Manley, E. F. McNicoll, D. Mekterović, V. Metag, S. Mičanović, D. G. Middleton, Korwin Moores, A. Mushkarenkov, B. M. K. Nefkens, M. Oberle, M. Ostrick, P. B. Otte, B. Oussena, P. Pedroni, F. Pheron, A. Polonski, S. Prakhov, J. E. M. Robinson, T. Rostomyan, S. Scherer, S. Schumann, M. H. Sikora, A. Starostin, I. Supek, M. Thiel, A. Thomas, L. Tiator, M. Unverzagt, D. P. Watts, D. Werthmüller, L. Witthauer

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenuePhysical Review Letters · 2013
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicQuantum Chromodynamics and Particle Interactions
Canadian institutionsMount Allison University
FundersEngineering and Physical Sciences Research CouncilScience and Technology Facilities CouncilNatural Sciences and Engineering Research Council of CanadaNational Science FoundationMinisterio de Economía y CompetitividadDeutsche ForschungsgemeinschaftU.S. Department of EnergySchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
KeywordsPhysicsCrystal BallAmplitudePhotonDetectorAtomic physicsOpticsNuclear physics

Abstract

fetched live from OpenAlex

A precision measurement of the differential cross sections $d\ensuremath{\sigma}/d\ensuremath{\Omega}$ and the linearly polarized photon asymmetry $\ensuremath{\Sigma}\ensuremath{\equiv}(d{\ensuremath{\sigma}}_{\ensuremath{\perp}}\ensuremath{-}d{\ensuremath{\sigma}}_{\ensuremath{\parallel}})/(d{\ensuremath{\sigma}}_{\ensuremath{\perp}}+d{\ensuremath{\sigma}}_{\ensuremath{\parallel}})$ for the $\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}p$ reaction in the near-threshold region has been performed with a tagged photon beam and almost $4\ensuremath{\pi}$ detector at the Mainz Microtron. The Glasgow-Mainz photon tagging facility along with the Crystal Ball/TAPS multiphoton detector system and a cryogenic liquid hydrogen target were used. These data allowed for a precise determination of the energy dependence of the real parts of the $S$- and all three $P$-wave amplitudes for the first time and provide the most stringent test to date of the predictions of chiral perturbation theory and its energy region of agreement with experiment.

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.

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)0.002
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Scholarly communication, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Research integrity, Insufficient 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: Empirical
Teacher disagreement score0.851
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.002
Meta-epidemiology (narrow)0.0020.003
Meta-epidemiology (broad)0.0010.004
Bibliometrics0.0010.002
Science and technology studies0.0030.002
Scholarly communication0.0030.004
Open science0.0040.003
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0250.005

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 head0.016
GPT teacher head0.260
Teacher spread0.244 · 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