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Study of<i>CP</i>-violating asymmetries in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mo>→</mml:mo><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mo>,</mml:mo></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>decays
B. Aubert, D. Boutigny, J.-M. Gaillard, A. Hicheur, Y. Karyotakis, J. P. Lees, P. Robbe, V. Tisserand, A. Palano, A. Pompili, G. P. Chen, J. C. Chen, N. D. Qi, G. Rong, P. Wang, Y. S. Zhu, G. Eigen, B. Stugu, G. S. Abrams, A. W. Borgland, A. B. Breon, David Norvil Brown, J. Button-Shafer, R. N. Cahn, A. R. Clark, M. S. Gill, A. V. Gritsan, Y. Groysman, R. G. Jacobsen, R. W. Kadel, J. Kadyk, L. T. Kerth, Yu. G. Kolomensky, J.F. Kral, C. LeClerc, M. E. Levi, G. Lynch, P. J. Oddone, A. Perazzo, M. Pripstein, N. A. Roe, A. Romosan, M. T. Ronan, V.G. Shelkov, A. V. Telnov, W. A. Wenzel, P. Bright-Thomas, T. J. Harrison, C. M. Hawkes, D. J. Knowles, S.W. OʼNeale, R. C. Penny, N. K. Watson, T. Deppermann, K. Goetzen, H. Koch, M. Kunze, B. Lewandowski, Κ. Peters, H. Schmuecker, M. Steinke, J.C. Andress, N. Barlow, W. Bhimji, N. Chevalier, P. J. Clark, W. N. Cottingham, N. Dyce, B. Foster, C. K. Mackay, David Wallom, F. F. Wilson, K. Abe, C. Hearty, T. S. Mattison, J. A. McKenna, D. Thiessen, S. Jolly, A. K. McKemey, V.E. Blinov, A. D. Bukin, D.A. Bukin, А. Р. Бузыкаев, V. B. Golubev, V. Ivanchenko, A. A. Korol, Е. А. Кравченко, A. P. Onuchin, A. A. Salnikov, S. I. Serednyakov, Yu. I. Skovpen, V. I. Telnov, A. N. Yushkov, David Best, M. Chao, A. J. Lankford, M. Mandelkern, S. J. McMahon, D. P. Stoker, K. Arisaka, C. Buchanan, S. Chun, D. B. MacFarlane, S. Prell, S. Rahatlou, G. Raven, V. Sharma, C. Campagnari, B. Dahmes, P. A. Hart, Н. П. Кузнецова, S. L. Levy, O. R. Long, A. Lu, J. D. Richman, W. Verkerke, M. S. Witherell, S. Yellin, J. Beringer, D. E. Dorfan, A. M. Eisner, A. A. Grillo, M. Grothe, C.A. Heusch, R. P. Johnson, W. S. Lockman, T. Pulliam, H. F-W. Sadrozinski, T. Schalk, R. Schmitz, B. A. Schumm, A. Seiden, M. Turri, W. Walkowiak, D. C. Williams, M. G. Wilson, E. Chen, G. P. Dubois-Felsmann, A. Dvoretskii, D. G. Hitlin, S. Metzler, J. Oyang, F. C. Porter, A. Rýd, A. Samuel, M. Weaver, S. Yang, R. Y. Zhu, S. Devmal, T. L. Geld, S. Jayatilleke, G. Mancinelli, B. T. Meadows, M. D. Sokoloff, T. Barillari, P. C. Bloom, M. Dima, S. Fahey, W. T. Ford, D. Johnson, U. Nauenberg, A. Olivas, P. Rankin, J. Roy, S. Sen, J. G. Smith, W.C. van Hoek, D.L. Wagner, J. Blouw, J. L. Harton, M. Krishnamurthy, A. Soffer, W. H. Toki, R. J. Wilson, J. Zhang, R. Aleksan, A. de Lesquen, S. Emery, A. Gaidot, S. F. Ganzhur, P. F. Giraud, G. Hamel de Monchenault, W. Kozanecki, M. Langer, G. W. London, B. Mayer, B. Serfass, G. Vasseur, Ch. Yéche, M. Zito, T. Brandt, J. Brose, T. Colberg, M. Dickopp, R. S. Dubitzky, E. Maly, R. Müller-Pfefferkorn, S. Otto, K. R. Schubert, R. Schwierz, B. Spaan, L. Wilden, David Bernard, G. R. Bonneaud, F. Brochard, J. Cohen-Tanugi, S. Ferrag, E. Roussot, S. T’Jampens, Ch. Thiebaux, G. Vasileiadis, M. Verderi, A. Anjomshoaa, R. Bernet, A. Khan, D. Lavin, F. Muheim, S. Playfer, J. E. Swain, J. Tinslay, M. Falbo, C. Borean, C. Bozzi, S. Dittongo, L. Piemontese, E. Treadwell, F. Anulli, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, D. Falciai, G. Finocchiaro, P. Patteri, I. M. Peruzzi, M. Piccolo, Y. Xie, A. Zallo, S. Bagnasco, A. Buzzo, R. Contri, G. Crosetti, M. Lo Vetere, M. Macrı́, M. R. Monge, S. Passaggio, F. Pastore, C. Patrignani, Maria Grazia Pia, E. Robutti, A. Santroni, S. Tosi, M. Morii, R. Bartoldus, R. Hamilton, U. Mallik, J. Cochran, H. B. Crawley, P. Fischer, J. Lamsa, W. T. Meyer, E. I. Rosenberg, G. Grosdidier, C. Hast, A. Höcker, H. M. Lacker, S. Laplace, V. Lepeltier, A. M. Lutz, S. Plaszczynski, M. H. Schune, S. Trincaz-Duvoid, G. Wormser, R. M. Bionta, V. Brigljević, D. J. Lange, M. Mugge, K. van Bibber, D. M. Wright, M. Carroll, J. R. Fry, E. Gabathuler, R. Gamet, M. George, M. Kay, D. J. Payne, R. J. Sloane, C. Touramanis, M. L. Aspinwall, D. A. Bowerman, P. D. Dauncey, U. Egede, I. Eschrich, N.J.W. Gunawardane, J. Nash, P. Sanders, D. Smith, D.E. Azzopardi, J. J. Back, P. Dixon, P. F. Harrison, R.J.L. Potter, H. W. Shorthouse, P. Strother, P.B. Vidal, M. Williams, G. Cowan, S. George, M. G. Green, A. Kurup, C. E. Marker, Patrick J. McGrath, T. R. McMahon, S. Ricciardi, F. Salvatore, I. Scott, G. Vaitsas, D. N. Brown, C. L. Davis, J. Allison, R. J. Barlow, J. Boyd, A. Forti, J. Fullwood, F. Jackson, G. Lafferty, N. Savvas, E.T. Simopoulos, J.H. Weatherall, A. Farbin, A. Jawahery, V. Lillard, J. Olsen, D. A. Roberts, J. Schieck, G. Blaylock, C. Dallapiccola, K. T. Flood, S. S. Hertzbach, R. Kofler, V. G. Koptchev, T. B. Moore, H. Staengle, S. Willocq, B. Brau, R. Cowan, G. Sciolla, F. Taylor, R. K. Yamamoto, M. Milek, P. M. Patel, F. Palombo, J. M. Bauer, L. Cremaldi, V. Eschenburg, R. Kroeger, J. Reidy, D. A. Sanders, D. J. Summers, J.P. Martin, J.Y. Nief, R. Seitz, P. Taras, V. Zacek, H. Nicholson, C.S. Sutton, C. Cartaro, N. Cavallo, G. De Nardo, F. Fabozzi, C. Gatto, L. Lista, P. Paolucci, D. Piccolo, C. Sciacca, J. M. LoSecco, J.R.G. Alsmiller, T.A. Gabriel, T. Handler, J. Brau, R. Frey, M. Iwasaki, N. B. Sinev, D. Strom, F. Colecchia, F. Dal Corso, A. Dorigo, F. Galeazzi, M. Margoni, Giovanna Michelon, M. Morandin, M. Posocco, M. Rotondo, F. Simonetto, R. Stroili, E. Torassa, C. Voci, M. Benayoun, H. Briand, J. Chauveau, P. David, Ch. de la Vaissière, L. Del Buono, O. Hamon, F. Le Diberder, Ph. Leruste, J. Ocariz, L. Roos, J. Stark, S. Versillé, P.F. Manfredi, V. Re, V. Speziali, E.D. Frank, L. Gladney, Qinghua Guo, J. Panetta, C. Angelini, G. Batignani, S. Bettarini, M. Bondioli, M. Carpinelli, F. Forti, M. A. Giorgi, A. Lusiani, F. Martínez-Vidal, M. Morganti, N. Néri, E. Paoloni, M. Rama, G. Rizzo, F. Sandrelli, G. Simi, G. Triggiani, J. Walsh, M. Haire, D. Judd, K. Paick, L. Turnbull, D. E. Wagoner, J. Albert, P. Elmer, C. Lü, Kirk T. McDonald, V. Miftakov, S. F. Schaffner, A. J. S. Smith, A. Tumanov, E. W. Varnes, G. Cavoto, D. Del Re, R. Faccini, F. Ferrarotto, F. Ferroni, E. Lamanna, E. Leonardi, M. A. Mazzoni, S. Morganti, G. Piredda, F. Safai Tehrani, M. Serra, C. Voena, S. Christ, R. Waldi, T. Adye, N. De Groot, B. Franek, N. I. Geddes, G. P. Gopal, S. Xella, N. Copty, M. V. Purohit, H. Singh, F. X. Yumiceva, И. Адам, P. L. Anthony, D. Aston, K. Baird, N. Berger, E. D. Bloom, A. M. Boyarski, F. Bulos, G. Calderini, M. R. Convery, D. P. Coupal, D. Coward, J. Dorfan, W. Dunwoodie, R. C. Field, T. Glanzman, G. Godfrey, S. J. Gowdy, P. Grosso, T. Haas, T. Himel, T. Hryn’ova, M.E. Huffer, W. R. Innes, C. P. Jessop, M. H. Kelsey, P. Kim, M. Kocian, U. Langenegger, D. W. G. S. Leith, S. Luitz, V. Lüth, H. L. Lynch, H. Marsiske, S. Menke, R. Messner, K. C. Moffeit, R. Mount, D.R. Muller, C.P. O'Grady, V. E. Ozcan, M. Perl, S. Petrak, Helen R. Quinn, B. N. Ratcliff, S. H. Robertson, Lynn Rochester, A. Roodman, T. Schietinger, R. H. Schindler, J. Schwiening, V.V. Serbo, A. Snyder, A. Soha, S. M. Spanier, J. Stelzer, D. Su, M. K. Sullivan, Hidetaka TANAKA, J. Va’vra, S. R. Wagner, A. J. Weinstein, W. J. Wisniewski, D. H. Wright, C. C. Young, P. R. Burchat, C. H. Cheng, D. Kirkby, T. I. Meyer, C. Roat, R. D. L. Henderson, W. Bugg, H.O. Cohn, A. W. Weidemann, J. M. Izen, I. Kitayama, X. C. Lou, F. Bianchi, M. Bóna, D. Gamba, A. Smol, L. Bosisio, G. Della Ricca, L. Lanceri, P. Poropat, G. Vuagnin, R. S. Panvini, C. M. Brown, P. Jackson, R. Kowalewski, J. M. Roney, H. R. Band, E. Charles, S. Dasu, F. Di Lodovico, A. M. Eichenbaum, H. B. Hu, J. R. Johnson, R. Liu, Y. Pan, R. Prepost, S. J. Sekula, J. H. von Wimmersperg-Toeller, S. L. Wu, Z. Yu, T.M.B. Kordich, H. A. Neal
Bibliographic record
VenuePhysical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2002
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsnot available
FundersInstitut National de Physique Nucléaire et de Physique des ParticulesInstitute of High Energy PhysicsNatural Sciences and Engineering Research Council of CanadaCentre National de la Recherche ScientifiqueSLAC National Accelerator LaboratoryAlexander von Humboldt-StiftungBundesministerium für Bildung und ForschungAlfred P. Sloan FoundationU.S. Department of EnergyNational Science Foundation
KeywordsAsymmetryPhysicsElectron–positron annihilationCP violationParticle physicsCharge (physics)Measure (data warehouse)Analytical Chemistry (journal)Nuclear physicsDatabaseComputer scienceHadronChemistry
Abstract
We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\mathrm{CP}$ eigenstate, and an updated measurement of the charge asymmetry in ${B}^{0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ decays. In a sample of 33 million $\ensuremath{\Upsilon}(4S)\ensuremath{\rightarrow}B\overline{B}$ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find ${65}_{\ensuremath{-}11}^{+12}$ ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and $217\ifmmode\pm\else\textpm\fi{}18$ ${K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ candidates and measure the asymmetry parameters ${S}_{\ensuremath{\pi}\ensuremath{\pi}}{=0.03}_{\ensuremath{-}0.56}^{+0.53}\ifmmode\pm\else\textpm\fi{}0.11,$ ${C}_{\ensuremath{\pi}\ensuremath{\pi}}=\ensuremath{-}{0.25}_{\ensuremath{-}0.47}^{+0.45}\ifmmode\pm\else\textpm\fi{}0.14,$ and ${\mathcal{A}}_{K\ensuremath{\pi}}=\ensuremath{-}0.07\ifmmode\pm\else\textpm\fi{}0.08\ifmmode\pm\else\textpm\fi{}0.02,$ where the first error is statistical and the second is systematic.
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)0.002
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.035
Threshold uncertainty score0.116
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.004 | 0.003 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.001 | 0.004 |
| Insufficient payload (model declined to judge) | 0.035 | 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 head0.020
GPT teacher head0.276
Teacher spread0.256 · 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 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".
Quick stats
Citations13
Published2002
Admission routes1
Has abstractyes