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Observation of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math>Meson in the Exclusive Decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:mi>π</mml:mi></mml:math>
V. M. Abazov, B. Abbott, M. Abolins, B. S. Acharya, M. Adams, T. Adams, E. Aguiló, S. H. Ahn, M. Ahsan, G. D. Alexeev, G. Alkhazov, G. Alverson, G. A. Alves, M. Anastasoaie, L. S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M. S. Anzelc, M. Aoki, Y. Arnoud, M. Arov, M. Arthaud, A. Askew, B. Åsman, A. C. S. Assis Jesus, O. Atramentov, C. Ávila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D. V. Bandurin, P. Banerjee, 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, C. Biscarat, G. Blazey, F. Blekman, S. Blessing, D. Blöch, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, G. Borissov, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N. J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, S. Bürke, T. H. Burnett, C. P. Buszello, J. M. Butler, P. Calfayan, S. Calvet, J. Cammin, W. Carvalho, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. Chan, K. M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D. K. Cho, S. Choi, B. C. Choudhary, L. Christofek, T. Christoudias, S. Cihangir, D. R. Claes, Y. Coadou, M. Cooke, W. E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, S. Cŕéṕe-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, G. Davies, K. De, S. J. de Jong, E. De La Cruz–Burelo, C. De Oliveira Martins, J. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S. P. Denisov, S. Desai, H. T. Diehl, M. Diesburg, A. Dominguez, H. Dong, L. Dudko, L. Duflot, S. R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V. D. Elvira, Y. Enari, S. C. Eno, P. Ermolov, H. Evans, A. Evdokimov, В. Н. Евдокимов, 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, E. Gallas, C. Garcı́a, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, D. Gelé, C. E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. G. Goussiou, P. D. Grannis, 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, N. J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R. E. Hall, L. Han, K. Harder, A. Harel, R. D. Harrington, J. M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J. G. Hegeman, J. M. Heinmiller, A. P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M. D. Hildreth, R. Hirosky, J. D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S. J. Hong, S. Hossain, P. Houben, Y. Hu, Z. Hubáček, V. Hynek, I. Iashvili, R. Illingworth, A. S. Ito, S. Jabeen, M. Jaffré, Sa. Jain, K. Jakobs, C. Jarvis, R. Jesik, K. A. Johns, C. A. Johnson, M. Johnson, A. Jonckheere, Per Jönsson, E. Kajfasz, A. Kalinin, J. M. Kalk, S. Kappler, D. Karmanov, P. A. Kasper, I. Katsanos, D. Kau, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y. M. Kharzheev, D. Khatidze, T. J. Kim, M. H. Kirby, M. Kirsch, B. Klima, J. M. Kohli, J.‐P. Konrath, V. M. Korablev, A. V. Kozelov, J. Kraus, D. Krop, T. Kühl, Arun Kumar, A. Kupčo, T. Kurča, J. Kvita, F. Lacroix, D. Lam, S. Lammers, G. Landsberg, P. Lebrun, W. M. Lee, A. Leflat, J. Lellouch, J. Levêque, J. Li, L. Li, Q. Li, S. M. Lietti, J. G. R. Lima, D. Lincoln, J. Linnemann, V. V. Lipaev, R. Lipton, Y. Liu, Z. Liu, A. Lobodenko, M. Lokajı́ček, P. Love, H. J. Lubatti, R. Luna, A. L. Lyon, A. K. A. Maciel, D. Mackin, R. J. Madaras, P. Mättig, C. Magass, A. Magerkurth, P. Mal, H. B. Malbouisson, S. Malik, V. L. Malyshev, H. S. Mao, Y. Maravin, B. Martin, R. McCarthy, A. Melnitchouk, L. Mendoza, P. G. Mercadante, M. Merkin, K. W. Merritt, A. Meyer, J. Meyer, T. Millet, J. Mitrevski, J. Molina, R. K. Mommsen, N. K. Mondal, R. W. Moore, T. Moulik, G. S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, M. Naimuddin, M. Narain, N. A. Naumann, H. A. Neal, J. P. Negret, P. Neustroev, H. Nilsen, H. Nogima, S. F. Novaes, T. Nunnemann, V. O’Dell, D. C. O’Neil, G. Obrant, C. Ochando, D. Onoprienko, N. Oshima, N. Osman, J. Osta, R. Otec, G. J. Otero y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, Sung Keun Park, J. A. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, B. Penning, M. Perfilov, Κ. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P. L. M. Podesta-Lerma, V. M. Podstavkov, Y. Pogorelov, M. E. Pol, P. Polozov, B. G. Pope, А. В. Попов, C. J. Potter, W. L. Prado Da Silva, H. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, A. Rakitine, M. S. Rangel, K. Ranjan, P. N. Ratoff, P. Renkel, S. Reucroft, P. Rich, J. Rieger, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R. F. Rodrigues, M. Rominsky, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M. P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R. D. Schamberger, Y. Scheglov, H. Schellman, T. Schliephake, 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, J. Steele, V. Stolin, D. A. Stoyanova, J. Strandberg, S. Strandberg, M. A. Strang, E. Strauß, M. Strauss, R. Ströhmer, D. Strom, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, P. Tamburello, A. J. Tanasijczuk, W. Taylor, J. Temple, B. Tiller, F. Tissandier, M. Titov, V. V. Tokmenin, T. Toole, I. Torchiani, T. Trefzger, D. Tsybychev, B. Tuchming, C. Tully, P. M. Tuts, R. Unalan, S. Uvarov, S. Uzunyan, B. Vachon, P. J. van den Berg, R. Van Kooten, W. M. van Leeuwen, N. Varelas, E. W. Varnes, I. A. Vasilyev, M. Vaupel, P. Verdier, L. S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, P. Vokac, E. von Toerne, M. Voutilainen, R. G. Wagner, H. D. Wahl, L. Wang, M. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, L. Welty-Rieger, Andreas Wenger, N. Wermes, M. Wetstein, A. White, D. Wicke, G. Wilson, S. J. Wimpenny, M. Wobisch, D. Wood, T. R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y. A. Yatsunenko, K. Yip, H. D. Yoo, S. W. Youn, J. Yu, A. Zatserklyaniy, C. Zeitnitz, T. Zhao, B. Zhou, J. Zhu, M. Zieliński, D. Ziemińska, A. Ziemiński, L. Živković, V. Zutshi, E. G. Zverev
Bibliographic record
VenuePhysical Review Letters · 2008
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsMcGill UniversityYork UniversitySimon Fraser UniversityUniversity of Alberta
FundersInstitut National de Physique Nucléaire et de Physique des ParticulesScience and Technology Facilities CouncilNatural Sciences and Engineering Research Council of CanadaFundação para o Desenvolvimento da UNESPCentre National de la Recherche ScientifiqueConselho 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 JaneiroKorea Science and Engineering FoundationDepartment of Science and Technology, Ministry of Science and Technology, IndiaGrantová Agentura České RepublikyFederal Agency for Science and InnovationDeutsche ForschungsgemeinschaftFermilabConsejo Nacional de Investigaciones Científicas y TécnicasWestern Canada Research GridDepartamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)Fundação de Amparo à Pesquisa do Estado de São PauloU.S. Department of EnergyScience Foundation IrelandSecretaría de Ciencia y Técnica, Universidad de Buenos AiresNational Science Foundation
KeywordsLuminosityTevatronPhysicsFermilabAlgorithmColliderNuclear physicsMathematicsQuantum mechanics
Abstract
A fully reconstructed ${B}_{c}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\pi}$ signal is observed with the D0 detector at the Fermilab Tevatron $p\overline{p}$ collider using $1.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of integrated luminosity. The signal consists of $54\ifmmode\pm\else\textpm\fi{}12$ candidates with a significance that exceeds 5 standard deviations, and confirms earlier observations of this decay. The measured mass of the ${B}_{c}$ meson is $6300\ifmmode\pm\else\textpm\fi{}14(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}5(\mathrm{syst})\text{ }\text{ }\mathrm{MeV}/{c}^{2}$.
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 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)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.022
Threshold uncertainty score0.074
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.022 | 0.003 |
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 head0.259
Teacher spread0.237 · 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 designBench or experimental
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
Citations104
Published2008
Admission routes2
Has abstractyes