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Search for pair production of first-generation leptoquarks in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> TeV</mml:mtext></mml:math>
V. M. Abazov, B. Abbott, M. Abolins, B. S. Acharya, M. Adams, T. Adams, E. Aguiló, M. Ahsan, G. D. Alexeev, G. Alkhazov, G. Alverson, G. A. Alves, L. S. Ancu, T. Andeen, M. S. Anzelc, M. Aoki, Y. Arnoud, M. Arov, M. Arthaud, A. Askew, B. Åsman, O. Atramentov, C. Ávila, J. BackusMayes, F. Badaud, L. Bagby, B. Baldin, D. V. Bandurin, S. Banerjee, E. Barberis, A. F. Barfuss, P. Bargassa, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Bélanger-Champagne, L. Bellantoni, A. Bellavance, J. F. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, I. A. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. Boos, G. Borissov, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, X. B. Bu, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, T. H. Burnett, C. P. Buszello, P. Calfayan, B. Calpas, S. Calvet, J. Cammin, M. A. Carrasco-Lizarraga, E. Carrera Jarrin, W. Carvalho, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, E. Cheu, D.K. Cho, S. Choi, B. C. Choudhary, T. Christoudias, S. Cihangir, D. R. Claes, J. Clutter, M. Cooke, W. E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, S. Cŕéṕe-Renaudin, D. Cutts, M. Ćwiok, A. Das, G. Davies, K. De, S. J. de Jong, E. De La Cruz–Burelo, K. DeVaughan, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S. P. Denisov, S. Desai, H. T. Diehl, M. Diesburg, A. Dominguez, T. Dorland, A. Dubey, L. Dudko, L. Duflot, D. Duggan, A. Duperrin, S. Dutt, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V. D. Elvira, Y. Enari, S. C. Eno, M. Escalier, H. Evans, A. Evdokimov, В. Н. Евдокимов, G. Facini, A. V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. C. Fisher, H. E. Fisk, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, Cristina Galea, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, W. Geng, C. E. Gerber, Y. Gershtein, D. T. Gil, G. Ginther, B. Gómez, A. G. Goussiou, P. D. Grannis, S. Greder, H. Greenlee, Z. D. Greenwood, E. M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M. Grünewald, F. Guo, J. Guo, G. Gutiérrez, P. Gutierrez, A. Haas, P. Haefner, S. Hagopian, J. Haley, I. Hall, R. E. Hall, L. Han, K. Harder, A. Harel, J. M. Hauptman, J. Hays, T. Hebbeker, D. Hedin, J. G. Hegeman, A. P. Heinson, U. Heintz, C. Hensel, I. Heredia-De La Cruz, K. Herner, G. Hesketh, M. D. Hildreth, R. Hirosky, T. Hoang, J. D. Hobbs, B. Hoeneisen, M. Hohlfeld, S. Hossain, P. Houben, Y. Hu, Z. Hubáček, N. Huske, V. Hynek, I. Iashvili, R. Illingworth, A. S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, D. O. Jamin, R. Jesik, K. A. Johns, C. A. Johnson, M. Johnson, D. Johnston, A. Jonckheere, P. Jonsson, E. Kajfasz, D. Karmanov, P. A. Kasper, I. Katsanos, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y. N. Kharzheev, D. Khatidze, T. J. Kim, M. H. Kirby, M. Kirsch, B. Klima, J. M. Kohli, J.‐P. Konrath, A. V. Kozelov, J. Kraus, T. Kühl, A. Kumar, A. Kupčo, T. Kurča, V. A. Kuzmin, J. Kvita, F. Lacroix, D. Lam, S. Lammers, G. Landsberg, P. Lebrun, W.M. Lee, A. Leflat, J. Lellouch, J. Li, L. Li, Q.Z. Li, S. M. Lietti, J. K. Lim, D. Lincoln, J. Linnemann, V. V. Lipaev, R. Lipton, Y. Liu, Z. Liu, A. Lobodenko, M. Lokajı́ček, P. Love, H. J. Lubatti, R. Luna-García, A. L. Lyon, A. K. A. Maciel, D. Mackin, P. Mättig, R. Magaña-Villalba, A. Magerkurth, P. Mal, H. B. Malbouisson, S. Malik, V. L. Malyshev, Y. Maravin, B. Martin, R. McCarthy, C. L. McGivern, M. M. Meijer, A. Melnitchouk, L. Mendoza, D. Menezes, P. G. Mercadante, M. Merkin, K. W. Merritt, A. Meyer, J. Meyer, J. Mitrevski, N. K. Mondal, R. W. Moore, T. Moulik, G. S. Muanza, M. Mulhearn, O. Mundal, L. Mundim, M. Naimuddin, M. Narain, H. A. Neal, J. P. Negret, P. Neustroev, H. Nilsen, H. Nogima, S. F. Novaes, T. Nunnemann, G. Obrant, C. Ochando, D. Onoprienko, J. Orduna, N. Oshima, N. Osman, J. Osta, R. Otec, G. J. Otero y Garzón, M. Owen, M. Padilla, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, S.K. Park, J. A. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, B. Penning, M. Perfilov, Κ. Peters, Y. Peters, P. Pétroff, R. Piegaia, J. Piper, M.-A. Pleier, P. L. M. Podesta-Lerma, V. M. Podstavkov, Y. Pogorelov, M. E. Pol, P. Polozov, А. В. Попов, W.L. Prado da Silva, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, A. Rakitine, M. S. Rangel, K. Ranjan, P. N. Ratoff, P. Renkel, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, M. Rominsky, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M. P. Sanders, B. Sanghi, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R. D. Schamberger, Y. Scheglov, H. Schellman, T. Schliephake, S. Schlobohm, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, M. Shamim, V. Shary, A. A. Shchukin, R. K. Shivpuri, V. Siccardi, V. Šimák, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, G. R. Snow, J. Snow, S. Söldner‐Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustružnı́k, B. Spurlock, J. Stark, V. Stolin, D. A. Stoyanova, J. Strandberg, M. A. Strang, E. Strauß, M. Strauss, R. Ströhmer, D. Strom, L. Stutte, S. Sumowidagdo, P. Svoisky, M. Takahashi, A. J. Tanasijczuk, W. Taylor, B. Tiller, M. Titov, V. V. Tokmenin, I. Torchiani, D. Tsybychev, B. Tuchming, C. Tully, P. M. Tuts, R. Unalan, S. Uvarov, S. Uzunyan, P. J. van den Berg, R. Van Kooten, W. M. van Leeuwen, N. Varelas, E. W. Varnes, I. A. Vasilyev, P. Verdier, L. S. Vertogradov, M. Verzocchi, D. Vilanova, P. Vint, P. Vokac, M. Voutilainen, R. L. Wagner, H. D. Wahl, M. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, L. Welty-Rieger, Andreas Wenger, M. Wetstein, A. White, D. Wicke, M. Williams, G. Wilson, S. J. Wimpenny, M. Wobisch, D. Wood, T. R. Wyatt, Y. Xie, C. F. Xu, S. Yacoob, R. Yamada, W.-C. Yang, T. Yasuda, Y. A. Yatsunenko, Z. Ye, H. Yin, K. Yip, H. D. Yoo, S. W. Youn, J. Yu, C. Zeitnitz, S. Zelitch, T. Zhao, B. Zhou, J. Zhu, M. Zieliński, D. Ziemińska, L. Živković, V. Zutshi, E. G. Zverev
Bibliographic record
VenuePhysics Letters B · 2009
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsMcGill UniversityYork UniversitySimon Fraser UniversityUniversity of Alberta
FundersSecretaría de Ciencia y Técnica, Universidad de Buenos AiresInstitut National de Physique Nucléaire et de Physique des ParticulesScience and Technology Facilities CouncilConsejo Nacional de Investigaciones Científicas y TécnicasNatural Sciences and Engineering Research Council of CanadaCentre National de la Recherche ScientifiqueFundação para o Desenvolvimento da UNESPState Atomic Energy Corporation ROSATOMU.S. Department of EnergyVetenskapsrådetConselho Nacional de Desenvolvimento Científico e TecnológicoBundesministerium für Bildung und ForschungRussian Foundation for Basic ResearchFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de JaneiroWestern Canada Research GridKorea Science and Engineering FoundationDepartment of Science and Technology, Ministry of Science and Technology, IndiaGrantová Agentura České RepublikyDepartamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)Federal Agency for Science and InnovationDeutsche ForschungsgemeinschaftFermilabScience Foundation IrelandNational Science FoundationRoyal SocietyAlexander von Humboldt-StiftungFundação de Amparo à Pesquisa do Estado de São Paulo
KeywordsTevatronPhysicsParticle physicsScalar (mathematics)MuonLuminosityFermilabColliderNuclear physicsLarge Hadron ColliderMathematicsAstrophysicsGeometry
Abstract
A search for pair production of first-generation leptoquarks ( LQ ) is performed with data collected by the DØ experiment in p p ¯ collisions at s = 1.96 TeV at the Fermilab Tevatron Collider. In a sample of data corresponding to ∼ 1 fb − 1 the search has been performed on the final states with two electrons and two jets or one electron, two jets and missing transverse energy. We find our data consistent with standard model expectations. The results are combined with those found in a previous analysis of events with two jets and missing transverse energy to obtain scalar LQ mass limits. We set 95% C.L. lower limits on a scalar LQ mass of 299 GeV, 284 GeV and 216 GeV for β = 1 , β = 0.5 and β = 0.02 respectively, where β is the LQ branching ratio in the eq channel. This improves the results obtained with a lower luminosity sample from Run II of the Tevatron. Lower limits on vector LQ masses with different couplings from 357 GeV to 464 GeV for β = 0.5 are also set using this analysis.
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 imitationNot 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)0.003
metaresearch head score (Gemma)0.001
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), Science and technology studies, 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 score0.839
Threshold uncertainty score0.999
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.003 | 0.004 |
| Meta-epidemiology (broad) | 0.001 | 0.004 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.005 | 0.004 |
| Scholarly communication | 0.003 | 0.004 |
| Open science | 0.004 | 0.004 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.006 | 0.004 |
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 head0.021
GPT teacher head0.252
Teacher spread0.230 · 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; both teacher heads agree on what is shown here.
Meta-epidemiology (narrow)Science and technology studiesResearch integrityInsufficient payload (model declined to judge)
Study designTheoretical or conceptual
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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Citations28
Published2009
Admission routes2
Has abstractyes