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First evidence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si25.svg"> <mml:mrow> <mml:mi mathvariant="italic">CP</mml:mi> </mml:mrow> </mml:math> violation in beauty baryon to charmonium decays
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, Fernando Jesus Abudinén, Thomas Ackernley, A. A. Adefisoye, Bernardo Adeva, M. Adinolfi, P. Adlarson, C. Agapopoulou, Christine Angela Aidala, Z. Ajaltouni, Simon Akar, Kazuyoshi Akiba, Pietro Albicocco, J. Albrecht, R. Aleksiejūnas, F. Alessio, Zakariya Aliouche, P. Álvarez Cartelle, Renaud Amalric, S. Amato, J. L. Amey, Y. Amhis, Liupan An, Lucio Anderlini, M. Andersson, P. Andreola, M. Andreotti, Sergio Andres Estrada, Alessia Anelli, Dong Ao, F. Archilli, Zaratsyan Areg, Matteo Argenton, S. Arguedas Cuendis, A. Artamonov, Marina Artuso, E. Aslanides, Rita Ataíde da Silva, M. Atzeni, B. Audurier, Juliette Authier, D. Bacher, I. Bachiller, S. Bachmann, Marie Bachmayer, J. J. Back, P. Baladrón Rodríguez, V. Balagura, Anna Balboni, W. Baldini, Luca Balzani, Haoran Bao, J. Baptista de Souza Leite, Carlos Javier Barbero Pretel, M. Barbetti, I. R. Barbosa, Roger Barlow, Mikhail Barnyakov, S. Barsuk, W. Barter, Justin Bartz, Saliha Bashir, B. Batsukh, Piera Battista, A. Bay, A. Beck, M. Becker, F. Bedeschi, I. Bediaga, Noah Albin Behling, S. Belin, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, Eli Ben-Haim, Alexander Berezhnoy, Roland Bernet, Sergi Bernet Andres, A. Bertolin, C. Betancourt, F. Betti, J. Bex, Ia. Bezshyiko, O. Bezshyyko, J. Bhom, M. S. Bieker, N. V. Biesuz, P. Billoir, A. Biolchini, Matthew Birch, F. C. R. Bishop, A. Bitadze, Andrea Bizzeti, T. Blake, F. Blanc, Jonah Evan Blank, S. Blusk, Vladimir Bocharnikov, J. A. Boelhauve, O. Boente García, Thomas Boettcher, A. Bohare, A. S. Boldyrev, C. S. Bolognani, R. Bolzonella, Riccardo Bonacci, N. Bondar, Aleksandar Bordelius, F. Borgato, S. Borghi, M. Borsato, J. T. Borsuk, E. Bottalico, Sonia Amina Bouchiba, Marcelo Bovill, T. J. V. Bowcock, A. Boyer, C. Bozzi, J. D. Brandenburg, A. Brea Rodríguez, Nils Breer, J. Brodzicka, Arnau Brossa Gonzalo, James David Brown, D. Brundu, E. Buchanan, Laura Buonincontri, Marta Burgos Marcos, A. T. Burke, C. Burr, J. S. Butter, Jan Buytaert, W. Byczynski, Sandro Cadeddu, Hao Cai, Yuman Cai, Alois Caillet, Saul Calderon Ramirez, Lukas Calefice, S. Cali, M. Calvi, Miriam Calvo Gomez, P. Camargo Magalhaes, Jose Ivan Cambon Bouzas, P. Campana, D. H. Cámpora Pérez, Angel Fernando Campoverde Quezada, S. Capelli, L. Capriotti, Ronald Gerardo Caravaca-Mora, Angelo Carbone, Lidia Carcedo Salgado, R. Cardinale, A. Cardini, P. Carniti, Leon David Carus, Adrian Casais Vidal, R. Caspary, G. Casse, M. Cattaneo, G. Cavallero, V. Cavallini, S. Celani, Sara Cesare, Abbie Jane Chadwick, Ibrahim Chahrour, H. Chang, M. Charles, Philippe Charpentier, Evridki Chatzianagnostou, M. Chefdeville, 陈晨, Jou-An Chen, S. Chen, Zewen Chen, Mostafa Cherif, A. Chernov, S. Chernyshenko, Xenofon Chiotopoulos, Veronika Chobanova, M. Chrząszcz, A. Chubykin, V. Chulikov, P. Ciambrone, X. Cid Vidal, G. Ciezarek, P. Cifra, Peter Clarke, M. Clemencic, H. V. Cliff, J. Closier, Carlos Eduardo Cocha Toapaxi, V. Coco, Julien Cogan, E. Cogneras, Lucian Cojocariu, Spencer Edward Collaviti, P. Collins, T. Colombo, M. Colonna, A. Comerma-Montells, L. Congedo, James Connaughton, A. Contu, N. Cooke, Christian Andres Coronel, I. Corredoira, Anthony Correia, G. Corti, B. Couturier, Daniel Charles Craik, M. Cruz Torres, Esteban Currás Rivera, R. Currie, Cesar Luiz da Silva, Shakhzod Dadabaev, Lingyun Dai, X. Dai, Elena Dall'Occo, J. Dalseno, Carmelo d'Ambrosio, J. Daniel, P. d’Argent, Gabriella Darze, Alexander Davidson, J. E. Davies, Oscar de Aguiar Francisco, Federico de Benedetti, K. De Bruyn, S. De Capua, Michel de Cian, U. De Freitas Carneiro Da Graca, E. De Lucia, J. M. De Miranda, L. De Paula, M. De Serio, P. De Simone, Fabio de Vellis, J. A. de Vries, Francesco Debernardis, D. Décamp, Sam Michael Dekkers, L. Del Buono, B. Delaney, H.-P. Dembinski, Jianqiao Deng, V. Denysenko, O. Deschamps, F. Dettori, B. Dey, P. Di Nezza, I. Diachkov, S. Didenko, S. Ding, Yiyang Ding, Lucas Dittmann, Vasyl Dobishuk, A. D. Docheva, Alex Patrick Doheny, C. Dong, A. M. Donohoe, Francesca Dordei, Alberto dos Reis, Andrew Jay Dowling, Lea Marie Sophie Dreyfus, Weisong Duan, P. Duda, M. W. Dudek, L. Dufour, Viacheslav Duk, Paolo Durante, M. M. Duras, J. M. Durham, Ozgur Durmus, A. Dziurda, A. Dzyuba, S. Easo, Ellinor Eckstein, U. Egede, A. Egorychev, V. Egorychev, S. Eisenhardt, E. Ejopu, L. Eklund, Mohamed Elashri, Jan Hendrik Ellbracht, Scott Ely, A. Ene, Jonas Nathanael Eschle, S. Esen, Timothy Evans, Federica Fabiano, Saba Faghih, L. N. Falcao, Riccardo Fantechi, Lisa Fantini, Maria Faria, Keira Gwyn Farmer, Davide Fazzini, Lukasz Jerzy Felkowski, Mingjie Feng, Mauricio Feo, Álvaro Fernández Casaní, Miguel Fernandez Gomez, Alex Daniel Fernez, Fabio Ferrari, F. Ferreira Rodrigues, Martina Ferrillo, M. Ferro-Luzzi, S. Filippov, Rosa Anna Fini, M. Fiorini, M. Firlej, Kamil Leszek Fischer, D. S. Fitzgerald, C. Fitzpatrick, T. Fiutowski, F. Fleuret, Alex Fomin, M. Fontana, Lucas Arthur Foreman, Roger Forty, D. Foulds-Holt, V. Franco Lima, M. Frank, E. Franzoso, Giulia Frau, C. Frei, David Anthony Friday, J. Fu, Quentin Fuehring, T. Fulghesu, G. Galati, M. D. Galati, Abraham Gallas Torreira, S. Gambetta, M. Gandelman, P. Gandini, Bilal Ahmad Ganie, Tian-Qi Gao, Yuanning Gao, Yuxi Gao, L. M. Garcia Martin, P. Garcia Moreno, J. García Pardiñas, Parker Taittinger Gardner, Kunal Garg, L. Garrido, Clara Gaspar, Arsenii Gavrikov, Louis Lenard Gerken, E. Gersabeck, M. Gersabeck, Timothy Gershon, Simon Ghizzo, Zahra Ghorbanimoghaddam, L. Giambastiani, F. I. Giasemis, V. Gibson, H. K. Giemza, A. Gilman, M. Giovannetti, A. Gioventù, Lucas George Girardey, Maciej Artur Giza, F. C. Glaser, V. V. Gligorov, C. Göbel, L. Golinka-Bezshyyko, Elisabet Golobardes, D. Golubkov, Andrey Golutvin, Sergio Gomez Fernandez, Wojciech Gomułka, Isadora Gonçales Vaz, F. Goncalves Abrantes, M. Goncerz, Guanghua Gong, J. A. Gooding, I. Gorelov, C. Gotti, Ekaterina Govorkova, Jascha Peter Grabowski, Luis Alberto Granado Cardoso, E. Graugés, E. Graverini, Luke Grazette, Giacomo Graziani, A. Grecu, L. M. Greeven, Nathan Allen Grieser, Lucia Grillo, S. Gromov, C. Gu, M. Guarise, Laetitia Guerry, Vasilisa Guliaeva, P. A. Günther, Abdul-Kerim Guseinov, E. Gushchin, Yury Guz, T. Gys, Kai Sebastian Habermann, T. Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, Samuel James Haken, George H. Hallett, Phoebe Meredith Hamilton, J. Hammerich, Qundong Han, Xiaoxue Han, Stephanie Hansmann-Menzemer, Neville Harnew, M. Hartmann, Sabin Hashmi, Jibo He, Andreea-Irina Hedes, Frédéric Hemmer, Conor Henderson, Robert Henderson, R. D. L. Henderson, Arthur Marius Hennequin, K. Hennessy, Louis Henry, James Daniel Herd, Paula Herrero Gascon, J. Heuel, A. Hicheur, Guillermo Hijano Mendizabal, J. Horswill, Ruiwen Hou, Y. R. Hou, Ned Francis Howarth, Jifeng Hu, Wenhua Hu, Xiaofan Hu, W. Hulsbergen, R. J. Hunter, M. Hushchyn, D. Hutchcroft, M. Idzik, Dmitrii Ilin, P. Ilten, Aleksandr Iniukhin, Axel Iohner, A. Ishteev, К. Ившин, H. Jage, S. J. Jaimes Elles, S. Jakobsen, E. Jans, B. K. Jashal, A. Jawahery, Chanka Jayaweera, Vukan Jevtic, Z. Jiao, Emily Kaiyin Jiang, Xiaojie Jiang, Yi Jiang, Esteban Jimenez Moya, Nicholas Jindal, M. John, Allen Cris John Rubesh Rajan, Daniel Johnson, Christopher Jones, Salil Joshi, B. Jost, Juan Jose Juan Castella, Nathan Jurik, Izabela Juszczak, Dimitrios Kaminaris, S. Kandybei, Michael James Kane, Youen Kang, C. Kar, M. Karacson, Anni Kauniskangas, Jacob William Kautz, M. K. Kazanecki, F. Keizer, Matthew Kenzie, T. Ketel, B. Khanji, Anastasiia Kharisova, Sergei Kholodenko, G. Khreich, T. Kirn, Veronica Soelund Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, Denys Klekots, K. Klimaszewski, M. R. Kmiec, Serhii Koliiev, Lars Kolk, A. Konoplyannikov, P. Kopciewicz, P. Koppenburg, A. Yu. Korchin, Igor Kostiuk, O. Kot, S. Kotriakhova, Elizabeth Marie Kowalczyk, Anastasiia Kozachuk, P. Kravchenko, Leonid Kravchuk, Oleg Kravcov, M. Kreps, Pavel Krokovny, W. Krupa, W. Krzemień, Oleksandr Kshyvanskyi, Sebastian Antoni Kubis, M. Kucharczyk, Vasily Kudryavtsev, Evgenia Kulikova, A. Kupść, В.А. Кушнир, Bogdan Kutsenko, J. Kvapil, Igor Kyryllin, D. Lacarrère, Paloma Laguarta Gonzalez, A. Lai, A. Lampis, Davide Lancierini, Clara Landesa Gomez, J. J. Lane, Gaia Lanfranchi, C. Langenbruch, Jan Langer, Oliver Lantwin, T. Latham, Federico Lazzari, C. Lazzeroni, R. Le Gac, Ho Sang Lee, R. Lefèvre, A. Leflat, S. Legotin, Marion Lehuraux, E. Lemos Cid, O. Leroy, Tadeusz Lesiak, Ezra Douglas Lesser, B. Leverington, Anfeng Li, C. Li, H. Li, Kechen Li, L. Li, Manshu Li, Peilian Li, Pei‐Rong Li, Qinze Li, Tiange Li, Yujie Li, Zhengchen Lian, Qiming Liang, Xixin Liang, Zhihua Liang, Simone Libralon, Chuangxin Lin, T. Lin, R. Lindner, Henry James Linton, Roman Litvinov, Frank Xiangyu Liu, Guoming Liu, K. Liu, Shuaiyi Liu, Weijie Liu, Yiwei Liu, Gustavo Alejandro Loachamin Ordonez, A. Lobo Salvia, A. Loi, Thomas Long, Felipe Cesário Laterza Lopes, José Lopes, A. Lopez Huertas, Cristina Lopez Iribarnegaray, S. López Soliño, Qiuchan Lu, C. Lucarelli, D. Lucchesi, Miriam Lucio Martínez, Y. Luo, Anna Lupato, E. Luppi, Kate Lynch, Xiao-Rui Lyu, G. M., S. Maccolini, F. Machefert, F. Maciuc, Bridget Mack, Innes Mackay, Lauren Grace Mackey, L. R. Madhan Mohan, Marcus Jonathan Madurai, Daniel Magdalinski, D. Maisuzenko, J. J. Malczewski, S. Malde, L. Malentacca, Alexander Malinin, Timofei Maltsev, G. Manca, G. Mancinelli, Chiara Mancuso, Rafel Manera Escalero, Federico Manganella, Daniele Manuzzi, D. Marangotto, J. F. Marchand, R. Marchevski, U. Marconi, Edoardo Mariani, S. Mariani, C. Marín Benito, Jörg Marks, A. M. Marshall, Lucas Martel, G. Martelli, G. Martellotti, L. Martinazzoli, M. Martinelli, Daniel Guillermo Martinez Gomez, D. Martínez Santos, F. Martínez-Vidal, Alexia Martorell Granollers, A. Massafferri, R. Matev, A. Mathad, V. Matiunin, C. Matteuzzi, K. R. Mattioli, A. Mauri, Emilie Maurice, J. Mauricio, Pierre Paul Louis Mayencourt, J. Mazorra de Cos, M. Mazurek, M. McCann, T. H. McGrath, Niall Thomas Mchugh, A. McNab, R. McNulty, B. Meadows, Gerwin Meier, D. Melnychuk, Diego Mendoza Granada, Fanjie Meng, Marcel Merk, A. Merli, L. Meyer Garcia, Dexing Miao, H. Miao, Mikhail Mikhasenko, D. A. Milanes, A. Minotti, Elisa Minucci, T. Miralles, Biljana Mitreska, D. S. Mitzel, Atanu Modak, L. Moeser, Razvan-Daniel Moise, Esteban Felipe Molina Cardenas, Titus Mombächer, Matthew David Monk, Stephane Monteil, S. Monteil, G. Morello, M. J. Morello, Maurice Pierre Morgenthaler, J. Moroń, W. Morren, A. B. Morris, A. G. Morris, R. Mountain, H. Mu, Zeqing Mu, Emir Muhammad, F. Muheim, M. Mulder, Katharina Müller, F. Muñoz-Rojas, Rebecca Murta, Viktor Mytrochenko, Paras Naik, Tatsuya Nakada, Raja Nandakumar, Ivan Polyakov, P. K. Resmi, Medaer Sacha Emile R., Biagio Saitta, Cibran Santamarina Rios, H. Schmitz, G. Schwering, Mara Senghi Soares, Desmond Mzamo Shangase, Bruno Souza de Paula, Sascha Stahl, Fidan Suljik, Eric van Herwijnen, Charlotte Barbara van Hulse, Pablo Vazquez Regueiro, Carlos Vázquez Sierra, Jianchun Wang, Ziyi Wang, David Websdale, Benedict Donald C Westhenry, G. Wilkinson, Fergus Wilson, S. Wotton, Zijun Xu, Chenxu Yu, Jiesheng Yu, M. Zeng, Liming Zhang, L. Zhang, Yanxi Zhang
Bibliographic record
VenueScience Bulletin · 2025
Typepreprint
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsnot available
FundersStockholm Resilience Centre, Stockholm UniversityNuclear PhysicsDeutsches Elektronen-SynchrotronAustralian Research CouncilInstitut National de Physique Nucléaire et de Physique des ParticulesScience and Technology Facilities CouncilAustralian Research Data CommonsCAS Center for Excellence in Particle PhysicsFundamental Research Funds for the Central UniversitiesSociedad Española de ReumatologíaIstituto Nazionale di Fisica NucleareRégion Auvergne-Rhône-AlpesFinanciadora de Estudos e ProjetosCentre National de la Recherche ScientifiqueNarodowe Centrum NaukiNational Academy of Sciences of UkraineRoyal SocietyMax-Planck-GesellschaftCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorConselho Nacional de Desenvolvimento Científico e TecnológicoNational Natural Science Foundation of ChinaInstitute of High Energy PhysicsMinistry of Science and Technology of the People's Republic of ChinaNederlandse Organisatie voor Wetenschappelijk OnderzoekAgence Nationale de la RechercheNextGenerationEUFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de JaneiroEuropean Research CouncilCERNMinisterstwo Edukacji i NaukiMinisterio de Ciencia, Innovación y UniversidadesLeverhulme TrustInternational Council of Shopping CentersUK Research and InnovationCanadian Anesthesiologists' SocietyDeutsche ForschungsgemeinschaftLanzhou UniversityAlexander von Humboldt-StiftungMinisterul Cercetării, Inovării şi DigitalizăriiH2020 Marie Skłodowska-Curie ActionsAgencia Estatal de InvestigaciónSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungKarlsruhe Institute of Technology
KeywordsLuminosityCP violationBaryonHyperonCollisionValue (mathematics)Symmetry (geometry)Statistical analysis
Abstract
A study of the difference in the CP asymmetries between Λ b 0 → J / ψ p π - and Λ b 0 → J / ψ pK - decays, Δ A CP , is performed using proton-proton collision data collected by the LHCb experiment in the years 2015–2018, corresponding to an integrated luminosity of 6 fb - 1 . This quantity is measured to be Δ A CP = ( 4.03 ± 1.18 ± 0.23 ) % , where the first uncertainty is statistical and the second is systematic. When combined with the previous LHCb result, a value of Δ A CP = ( 4.31 ± 1.06 ± 0.28 ) % is obtained, corresponding to a significance of 3.9 σ against the CP symmetry hypothesis. Studies of triple-product asymmetries, which provide an additional probe of CP violation, show no significant deviation from CP symmetry.
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)0.001
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: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.010
Threshold uncertainty score0.033
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 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 head0.020
GPT teacher head0.268
Teacher spread0.248 · 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
Citations1
Published2025
Admission routes1
Has abstractyes