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Record W2000411918 · doi:10.1142/9789812702708_0034

ATLAS LIQUID ARGON HADRONIC CALORIMETERS

2004· article· en· W2000411918 on OpenAlex
R. S. Orr

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.

Bibliographic record

VenueAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications · 2004
Typearticle
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsAtlas (anatomy)Nuclear physicsArgonHadronPhysicsLarge Hadron ColliderNuclear engineeringAtomic physicsGeologyEngineering

Abstract

fetched live from OpenAlex

The ATLAS experiment is a general purpose detector designed to exploit the full potential of the Large Hadron Collider at both low and high luminosity running. Central to the ATLAS physics program is what one can term discovery physics. In defining the calorimeter design goals this discovery physics has been a major consideration. An important design touchstone was the ability to discover a standard model Higgs over a wide mass range. This is shown in Fig.1. At low masses the energy resolution for photons, and fine electromagnetic spatial resolution, are at a premium in order to distinguish photons from 0 π and to reconstruct the channel H γγ → against a large background; this sets the design goals for the electromagnetic calorimeter system. In the intermediate mass region the decay channel H l l l l + − + − → again mandates high quality electromagnetic calorimetry over a wide rapidity range. In the high mass region up to 1 TeV, the ability to identify jets and to reconstruct jet invariant masses is a major design consideration. Many “discovery” topics, such as supersymmetery, depend on the detection of missing energy and require hermetic hadronic calorimetry. These are only the major design goals, and clearly more optimization than can be covered here has gone on in the design of ATLAS, see [1]. A summary of the calorimeter design goals, and the chosen technologies is given in Fig. 2. At this meeting the construction and testing of the electromagnetic calorimeters was covered in separate contributions, see [2], [3]. Here we restrict ourselves to a discussion of the Forward Calorimeter, the assembly of the end cap calorimeters, and plans for combined test beams.

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)0.000
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: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.713
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 studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
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 head0.008
GPT teacher head0.248
Teacher spread0.240 · 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