First evidence of CP 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, R. Calabrese, 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, R. Cheaib, 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, J. J. Cottee Meldrum, 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, Camilla de Angelis, Federico de Benedetti, J. de Boer, 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, B. Fang, 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. Franco Sevilla, 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, D. Galli, S. Gambetta, M. Gandelman, P. Gandini, Bilal Ahmad Ganie, H. Gao, R. Gao, Tian-Qi Gao, Y. 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, L. Hao, Neville Harnew, T. H. Harris, 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, David C. Houston, 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, Y. J. 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, M. Korolev, 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, C. Li, H. Li, J. Li, Kechen Li, L. Li, Manshu Li, Peilian Li, Pei‐Rong Li, Qinze Li, Tiange Li, T. Li, Y. Li, Y. Li, Yujie Li, Zhengchen Lian, Qiming Liang, Xixin Liang, Zhihua Liang, Simone Libralon, A. Lightbody, Chuangxin Lin, T. Lin, R. Lindner, Henry James Linton, Roman Litvinov, D. Liu, Frank Xiangyu Liu, Guoming Liu, K. Liu, Shuaiyi Liu, Weijie Liu, Y. Liu, Y. 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. 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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, T. Nanut, I. Nasteva, M. Needham, E. Nekrasova, N. Néri, S. Neubert, N. Neufeld, P. Neustroev, J. Nicolini, D. Nicotra, Elisabeth Maria Niel, N. Nikitin, Q. L. Niu, Pedro Nogarolli, Piet Nogga, C. Normand, J. Novoa Fernandez, G. Nowak, C. Nunez, H. N. Nur, A. Obłąkowska-Mucha, V. Obraztsov, Τ. Oeser, A. Okhotnikov, О. Okhrimenko, R. Oldeman, F. Oliva, F. Oliva, M. Olocco, C. J. G. Onderwater, R. H. O’Neil, J. S. Ordonez Soto, Donata Osthues, J. M. Otalora Goicochea, P. Owen, A. Oyanguren, Ö. Özçelik, Francesco Paciolla, A. Padee, Klaas Padeken, B. Pagare, T. Pajero, A. Palano, M. Palutan, M. Palutan, X. Pan, S. Panebianco, G. Panshin, L. Paolucci, A. Papanestis, M. Pappagallo, L. L. Pappalardo, C. Pappenheimer, C. Parkes, Dhruvanshu Parmar, B. Passalacqua, G. Passaleva, Daniele Passaro, A. 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Résumé fourni par la source
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.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- First evidence of CP violation in beauty baryon to charmonium decays
- Date Crossref
- 01/02/2026
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.
Institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.