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Record W6992819628

Measurements of the mass and width of the η<inf>c</inf>meson and of an η<inf>c</inf>(2S) candidate

2004· article· en· W6992819628 on OpenAlexfundno aff

Bibliographic record

VenueeScholarship (California Digital Library) · 2004
Typearticle
Languageen
FieldPhysics and Astronomy
TopicQuantum Chromodynamics and Particle Interactions
Canadian institutionsnot available
FundersInstitut National de Physique Nucléaire et de Physique des ParticulesInstitute of High Energy PhysicsNatural Sciences and Engineering Research Council of CanadaCentre National de la Recherche ScientifiqueBundesministerium für Bildung und ForschungSLAC National Accelerator LaboratoryAlexander von Humboldt-StiftungAlfred P. Sloan FoundationDeutsche ForschungsgemeinschaftU.S. Department of EnergyNational Science Foundation
KeywordsDetectorCharged particleMass distributionParticle identificationCherenkov radiationSolenoidal vector fieldResolution (logic)GaussianMeson
DOInot available

Abstract

fetched live from OpenAlex

The physical characteristics such as mass and total width of η c meson were analyzed in two-photon interactions. The hyperfine separations were found to be directly related to spin-spin interactions. The momenta of charged particles were measured and their trajectories reconstructed with two detector systems which were located in 1.5 T solenoidal magnetic field. The charged particle identification was provided by detector of internally reflected Cherenkov light. The mass resolution was determined by fitting the distribution of difference between reconstructed mass and generated mass to Gaussian function.

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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.453
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0010.003
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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 head0.217
Teacher spread0.206 · 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
Published2004
Admission routes1
Has abstractyes

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