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Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

2013· article· en· W2124088831 on OpenAlexaff
H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, C. Alexa, V. Andreev, S. Antonelli, P. Antonioli, А. Антонов, M. Arneodo, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. Baghdasaryan, S. Baghdasaryan, A. Bamberger, A.N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, W. Bartel, N. Bartosik, D. Bartsch, M. Basile, K. Begzsuren, O. Behnke, J. K. Behr, U. Behrens, L. Bellagamba, A. Belousov, P. Belov, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, Kyrylo Bondarenko, E.G. Boos, K. Borras, D. Boscherini, D. Bot, V. Boudry, I. Božović-Jelisavc̆ić, T. Bołd, N. Brümmer, J. Braciník, O. Brandt, Martin Brinkmann, V. Brisson, D. Britzger, I. Brock, E. Brownson, R. Brugnera, A. Bruni, G. Bruni, B. Brzozowska, A. Bunyatyan, P. Bussey, A. Bylinkin, B. Bylsma, L. Bystritskaya, A. Caldwell, A. Campbell, K. B. Cantun Avila, M. Capua, R. Carlin, C. D. Catterall, F. Ceccopieri, K. Černý, S. Chekanov, V. Chekelian, J. J. Chwastowski, J. Ciborowski, R. Ciesielski, L. Cifarelli, F. Cindolo, A. Contin, J.G. Contreras, A. M. Cooper-Sarkar, N. Coppola, M. Corradi, F. Corriveau, M. Costa, J. Cvach, G. D’Agostini, J.B. Dainton, F. Dal Corso, K. Daum, J. Delvax, R. K. Dementiev, M. Derrick, R. C. E. Devenish, S. De Pasquale, E. A. De Wolf, J. del Peso, C. Diaconu, M. Dobre, D. Dobur, V. Dodonov, B. A. Dolgoshein, Ganna Dolinska, A. Dossanov, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, G. Eckerlin, S. Egli, Y. Eisenberg, E. Elsen, P. Ermolov, A. Eskreys, S. Fang, L. Favart, S. Fazio, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, J. Ferrando, M.I. Ferrero, J. Figiel, D.-J. Fischer, M. Fleischer, A. Fomenko, B. Foster, E. Gabathuler, G. P. Gach, A. Galas, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, S. Ghazaryan, I. Gialas, A. Gizhko, L. K. Gladilin, D. Gladkov, C. Glasman, A. Glazov, L. Goerlich, N. Gogitidze, O. Gogota, Yu. A. Golubkov, P. Göttlicher, M. Gouzevitch, C. Grab, I. Grabowska-Bołd, A. Grebenyuk, J. Grebenyuk, T. Greenshaw, I. M. Gregor, G. Grigorescu, G. Grindhammer, G. Grzelak, O. Gueta, M. P. Guzik, C. Gwenlan, A. Hüttmann, T. Haas, S. Habib, D. Haidt, W. Hain, R. Hamatsu, J.C. Hart, H. Hartmann, G. Hartner, R. C. W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, E. Hilger, K. H. Hiller, J. Hladký, D. Hochman, D. Hoffmann, R. Hori, R. Horisberger, T. Hreus, F. Huber, Z. A. Ibrahim, Y. Iga, R. Ingbir, M. Ishitsuka, M. Jacquet, H.‐P. Jakob, X. Janssen, F. Januschek, T. W. Jones, L. Jönsson, M. Jüngst, A. Jung, H. Jung, І. Каденко, B. Kahle, S. Kananov, T. Kanno, M. Kapichine, U. Karshon, F. Karstens, I.I. Katkov, P. Kaur, M. Kaur, I. R. Kenyon, A. Keramidas, L. A. Khein, C. Kiesling, J. Y. Kim, D. Kisielewska, S. Kitamura, R. Klanner, M. Klein, U. Klein, C. Kleinwort, U. Kötz, E. Koffeman, R. Kogler, N. Kondrashova, O. Kononenko, P. Kooijman, Ie. Korol, I. A. Korzhavina, P. Kostka, A. Kotański, H. Kowalski, Martina Krämer, J. Kretzschmar, K. Krüger, Oleg Kuprash, M. Kuze, M. P. J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, A. Lee, V. Lendermann, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, S. Limentani, T. Y. Ling, K. Lipka, M. Lisovyi, B. List, Jenny List, E. Lobodzinska, B. Łobodziński, B. Löhr, W. Lohmann, E. Lohrmann, K. Long, A. Longhin, D. Lontkovskyi, R. López-Fernández, V. Lubimov, Olga Lukina, J. Maeda, S. Magill, I. Makarenko, E. Malinovski, J. Malka, R. Mankel, A. Margotti, G. Marini, H.‐U. Martyn, A. Mastroberardino, M.C.K. Mattingly, S. J. Maxfield, A. Mehta, I.-A. Melzer-Pellmann, S. Ye, A. Meyer, H. Meyer, J. Meyer, S. Miglioranzi, S. Mikocki, I. Milcewicz-Mika, F. Mohamad Idris, V. Monaco, A. Montanari, F. Moreau, A. Morozov, J.V. Morris, J. D. Morris, K. Mujkic, K. Müller, B. Musgrave, K. Nagano, T. Namsoo, R. Nania, T. Naumann, P. R. Newman, C. Niebuhr, A. Nigro, D. Nikitin, Y. Ning, T. Nobe, D. Notz, G. Nowak, K. Nowak, R.J. Nowak, A.-E. Nuncio-Quiroz, B.Y. Oh, N. Okazaki, K. Olkiewicz, J.E. Olsson, Y. Onishchuk, D. Ozerov, P. Pahl, V. Palichik, M. Pandurović, K. Papageorgiu, A. Parenti, C. Pascaud, G. D. Patel, E. Paul, J. M. Pawlak, B. Pawlik, P.G. Pelfer, A. Pellegrino, E. Pérez, W. Perlański, H. Perrey, A. Petrukhin, I. Pićurić, K. Piotrzkowski, H. Pirumov, D. Pitzl, R. Plačakytė, P. Pluciński, B. Pokorny, N.S. Pokrovskiy, R. Polifka, A. Polini, Bogdan Povh, A.S. Proskuryakov, M. Przybycień, V. Radescu, N. Raičević, A. Raval, T. Ravdandorj, D. D. Reeder, P. Reimer, B. Reisert, Z. Ren, J. Repond, Y.D. Ri, E. Rizvi, A. Robertson, P. Robmann, P. Roloff, R. Roosen, A. Rostovtsev, M. Rotaru, I. Rubinsky, J. E. Ruiz Tabasco, S. V. Rusakov, M. Ruspa, R. Sacchi, D. Šálek, U. Samson, D. P. C. Sankey, G. Sartorelli, M. Sauter, E. Sauvan, A. A. Savin, D. H. Saxon, M. Schioppa, S. Schlenstedt, P. Schleper, W. B. Schmidke, S. Schmitt, U. Schneekloth, L. Schoeffel, V. Schönberg, A. Schöning, T. Schörner-Sadenius, H.-C. Schultz-Coulon, J. Schwartz, F. Sciulli, L.M. Shcheglova, R. Shehzadi, S. Shimizu, S. Shushkevich, I. Singh, I. O. Skillicorn, W. Słomiński, W. H. Smith, V. Sola, A. Solano, Y. Soloviev, D. Son, P. Sopicki, V. Sosnovtsev, D. South, V. Spaskov, A. Specka, A. Spiridonov, H. Stadie, L. Stanco, Z. Staykova, M. Steder, N. Stefaniuk, B. Stella, A. Stern, T. P. Stewart, A. Stifutkin, G. Stoicea, P. Stopa, U. Straumann, S. Suchkov, G. Susinno, L. Suszycki, T. Sýkora, J. Sztuk-Dambietz, J. Szuba, D. Szuba, A. Tapper, E. ̃Tassi, J. Terrón, T. Theedt, P. D. Thompson, H. Tiecke, K. Tokushuku, J. Tomaszewska, Trong Hieu Tran, D. Traynor, P. Truöl, V. Trusov, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, J. Turnau, T. Tymieniecka, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, A. Verbytskyi, O. Viazlo, N. Vlasov, R. Walczak, Wan Ahmad Tajuddin Wan Abdullah, D. Wegener, J.J. Whitmore, K. Wichmann, L. Wiggers, M. Wing, M. Wlasenko, G. Wolf, H. Wolfe, K. Wrona, E. Wünsch, A. G. Yagües-Molina, S. Yamada, Y. Yamazaki, R. Yoshida, C. Youngman, O. Zabiegalov, J. Žáček, J. Zálešâk, O. Zenaiev, Wolfram Dietrich Zeuner, Z. Zhang, B.O. Zhautykov, N. Zhmak, A. Zichichi, R. Žlebčík, H. Zohrabyan, Zukhaimira Zolkapli, F. Zomer, D. S. Zotkin, A. F. Żarnecki

Bibliographic record

VenueThe European Physical Journal C · 2013
Typearticle
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsMcGill UniversityUniversity of TorontoYork University
FundersDeutsches Elektronen-SynchrotronScience and Technology Facilities Council
KeywordsHERAPhysicsParticle physicsDeep inelastic scatteringPartonCharm (quantum number)ZEUS (particle detector)Charm quarkNuclear physicsQuantum chromodynamicsQuarkScatteringSigmaInelastic scattering

Abstract

fetched live from OpenAlex

Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σcc¯red for charm production are obtained in the kinematic range of photon virtuality 2.5≤Q 2≤2000 GeV2 and Bjorken scaling variable 3⋅10−5≤x≤5⋅10−2. The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W ± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.

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 machine prediction

Teacher imitation

Not 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)0.003
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 score0.004
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0040.004
Science and technology studies0.0010.001
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.022
GPT teacher head0.270
Teacher spread0.249 · 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 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".

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Citations192
Published2013
Admission routes1
Has abstractyes

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Same venueThe European Physical Journal CSame topicParticle physics theoretical and experimental studiesFrench-language works237,207