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Exclusive photoproduction of ϒ mesons at HERA
S. Chekanov, M. Derrick, S. Magill, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, G. Bruni, F. Cindolo, M. Corradi, G. Iacobucci, A. Margotti, R. Nania, A. Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, I. Brock, H. Hartmann, E. Hilger, H.‐P. Jakob, M. Jüngst, A.-E. Nuncio-Quiroz, E. Paul, U. Samson, V. Schönberg, R. Shehzadi, M. Wlasenko, N. H. Brook, H. F. Heath, J. D. Morris, M. Kaur, P. Kaur, I. Singh, M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, E. ̃Tassi, J.Y. Kim, Z. A. Ibrahim, F. Mohamad Idris, B. Kamaluddin, W. A. T. Wan Abdullah, Y. Ning, Z. Ren, F. Sciulli, J. J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, K. Olkiewicz, B. Pawlik, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska-Bołd, D. Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, A. Kotański, W. Słomiński, O. Behnke, J. K. Behr, U. Behrens, C. Blohm, K. Borras, D. Bot, R. Ciesielski, N. Coppola, S. Fang, A. Geiser, P. Göttlicher, J. Grebenyuk, I. M. Gregor, T. Haas, W. Hain, A. Hüttmann, F. Januschek, B. Kahle, I.I. Katkov, U. Klein, U. Kötz, H. Kowalski, M. Lisovyi, E. Lobodzinska, B. Löhr, R. Mankel, I.-A. Melzer-Pellmann, S. Miglioranzi, A. Montanari, T. Namsoo, D. Notz, A. Parenti, P. Roloff, I. Rubinsky, U. Schneekloth, A. Spiridonov, D. Szuba, J. Szuba, T. Theedt, J. Tomaszewska, G. Wolf, K. Wrona, A. G. Yagües-Molina, C. Youngman, W. Zeuner, V. Drugakov, W. Lohmann, S. Schlenstedt, G. Barbagli, E. Gallo, P.G. Pelfer, A. Bamberger, D. Dobur, F. Karstens, N. Vlasov, P. Bussey, A. T. Doyle, M. Forrest, D. H. Saxon, I.O. Skillicorn, I. Gialas, K. Papageorgiu, U. Holm, R. Klanner, E. Lohrmann, H. Perrey, P. Schleper, T. Schörner-Sadenius, J. Sztuk, H. Stadie, M. Turcato, C. Foudas, C. Fry, K.R. Long, A. Tapper, T. Matsumoto, K. Nagano, K. Tokushuku, S. Yamada, Y. Yamazaki, A.N. Barakbaev, E.G. Boos, N.S. Pokrovskiy, B.O. Zhautykov, V. Aushev, O. Bachynska, M. Borodin, І. Каденко, O. Kuprash, V. Libov, D. Lontkovskyi, I. Makarenko, Iu. Sorokin, A. Verbytskyi, O. Volynets, M. Zolko, D. Son, J. de Favereau, K. Piotrzkowski, F. Barreiro, C. Glasman, M. Jiménez, J. del Peso, E. Ron, J. Terrón, C. Uribe-Estrada, F. Corriveau, J. Schwartz, C. Zhou, T. Tsurugai, А. Антонов, B. A. Dolgoshein, D. Gladkov, V. Sosnovtsev, A. Stifutkin, S. Suchkov, R. K. Dementiev, P. Ermolov, L. K. Gladilin, Yu. A. Golubkov, L. A. Khein, I. A. Korzhavina, V. A. Kuzmin, B. B. Levchenko, O.Yu. Lukina, A.S. Proskuryakov, L.M. Shcheglova, D. S. Zotkin, I. Abt, A. Caldwell, D. Kollár, B. Reisert, W. B. Schmidke, G. Grigorescu, A. Keramidas, E. Koffeman, P. Kooijman, A. Pellegrino, H. Tiecke, L. Wiggers, N. Brümmer, B. Bylsma, L. S. Durkin, A. Lee, T. Y. Ling, P. Allfrey, M. Bell, A. M. Cooper-Sarkar, R.C.E. Devenish, J. Ferrando, B. Foster, C. Gwenlan, K. Horton, K. Oliver, A. Robertson, R. Walczak, A. Bertolin, F. Dal Corso, S. Dusini, A. Longhin, L. Stanco, R. Brugnera, R. Carlin, A. Garfagnini, S. Limentani, B.Y. Oh, A. Raval, J. Whitmore, Y. Iga, G. D’Agostini, G. Marini, A. Nigro, J. E. Cole, J.C. Hart, H. Abramowicz, R. Ingbir, S. Kananov, A. Levy, A. Stern, M. Kuze, J. Maeda, R. Hori, S. Kagawa, N. Okazaki, S. Shimizu, T. Tawara, R. Hamatsu, H. Kaji, S. Kitamura, O. Ota, Y.D. Ri, M. Costa, M.I. Ferrero, V. Monaco, R. Sacchi, V. Sola, A. Solano, M. Arneodo, M. Ruspa, S. Fourletov, T. P. Stewart, S. Boutle, J. M. Butterworth, T. W. Jones, J.H. Loizides, M. Wing, B. Brzozowska, J. Ciborowski, G. Grzelak, P. Kulinski, P. Łużniak, J. Malka, R.J. Nowak, J. M. Pawlak, W. Perlański, A. F. Żarnecki, M. Adamus, P. Pluciński, T. Tymieniecka, Y. Eisenberg, D. Hochman, U. Karshon, E. Brownson, D. D. Reeder, A. A. Savin, W. H. Smith, H. Wolfe, S. Bhadra, C. D. Catterall, Yanou Cui, G. Hartner, S. Menary, U. Noor, J. Standage, J. Whyte
Bibliographic record
VenuePhysics Letters B · 2009
Typearticle
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsnot available
FundersHigh Energy PhysicsNuclear PhysicsNatural Sciences and Engineering Research Council of CanadaLomonosov Moscow State UniversityFonds De La Recherche Scientifique - FNRSKorea Science and Engineering FoundationFonds pour la Formation à la Recherche dans l’Industrie et dans l’AgricultureBelgian Federal Science Policy OfficeDeutsches Elektronen-SynchrotronNational Natural Science Foundation of ChinaBundesministerium für Bildung und ForschungScience and Technology Facilities CouncilStrongU.S. Department of EnergyRussian Foundation for Basic ResearchMinistry of Education, Culture, Sports, Science and TechnologyUniversità degli Studi di SalernoNational Science Foundation
KeywordsHERAZEUS (particle detector)PhysicsParticle physicsMesonPerturbative QCDPhotonNuclear physicsLuminosityQuantum chromodynamicsDeep inelastic scatteringScatteringAstrophysicsOptics
Abstract
No abstract in any covered source. Its absence is recorded, not treated as a negative.
No abstract. This is not a gap in this database; OpenAlex has none either. 23.3% of the frame is in this state, and the screen finds HALF as much metaresearch here, so the absence is a measured bias rather than a missing field.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.009
Threshold uncertainty score0.032
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
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 head0.010
GPT teacher head0.248
Teacher spread0.238 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
The models applied no category: nothing in the taxonomy fit this work.
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
Citations98
Published2009
Admission routes1
Has abstractno