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2026
article
A model-independent measurement of the CKM angle γ in the decays B± → [K+K−π+π−]Dh± and B± → [π+π−π+π−]Dh± (h = K, π)
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, Fernando Jesus Abudinén, Thomas Ackernley, A. A. Adefisoye, B. Adeva, M. Adinolfi, P. Adlarson, C. Agapopoulou, Christine Angela Aidala, Ziad Ajaltouni, Simon Akar, Kazuyoshi Akiba, Pietro Albicocco, J. Albrecht, R. Aleksiejūnas, F. Alessio, Zakariya Aliouche, P. Álvarez Cartelle, R. Amalric, S. Amato, J. L. Amey, Y. Amhis, Liupan An, L. Anderlini, M. Andersson, P. Andreola, M. Andreotti, Sergio Andres Estrada, Alessia Anelli, D. 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, Irene Bachiller Perea, 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, Anja Beck, M. Becker, F. Bedeschi, I. Bediaga, Noah Albin Behling, S. Belin, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, Roland Bernet, Sergi Bernet Andres, A. Bertolin, C. Betancourt, F. Betti, Josh Bex, Ia. Bezshyiko, O. Bezshyyko, J. Bhom, M. S. Bieker, N. V. Biesuz, Pierre 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, Abhishek Bohare, A. S. Boldyrev, C. S. Bolognani, R. Bolzonella, Riccardo Bonacci, N. Bondar, Aleksandar Bordelius, F. Borgato, S. Borghi, M. Borsato, Jozef Tomasz 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, S. 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, A. Campoverde, S. Capelli, L. Capriotti, Ronald Gerardo Caravaca-Mora, A. 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, A. J. 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, Aleksei 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, J. Cogan, E. Cogneras, Lucian Cojocariu, Spencer Edward Collaviti, Paula 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, F. De Vellis, J. A. de Vries, Francesco Debernardis, D. Décamp, Sam Michael Dekkers, L. Del Buono, B. Delaney, H.-P. Dembinski, Jianqiao Deng, Vadym Denysenko, O. Deschamps, F. Dettori, Biplab 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, Enoch Ejopu, L. Eklund, Mohamed Elashri, Jan Hendrik Ellbracht, Scott Ely, A. Ene, Jonas Nathanael Eschle, Sevda Esen, Timothy Evans, Federica Fabiano, Saba Faghih, L. N. Falcao, B. Fang, Riccardo Fantechi, L. Fantini, Maria Faria, Keira Gwyn Farmer, D. Fazzini, Lukasz Jerzy Felkowski, Mingjie Feng, Mauricio Feo, Álvaro Fernández Casaní, Miguel Fernandez Gomez, Alex Daniel Fernez, F. Ferrari, F. Ferreira Rodrigues, Martina Ferrillo, M. Ferro-Luzzi, S. Filippov, Rosa Anna Fini, M. Fiorini, M. Firlej, Kamil Leszek Fischer, Dillon Scott Fitzgerald, C. Fitzpatrick, T. Fiutowski, F. Fleuret, Alex Fomin, M. Fontana, Lucas Arthur Foreman, R. Forty, D. Foulds-Holt, V. Franco Lima, M. Franco Sevilla, M. Frank, E. Franzoso, G. Frau, C. Frei, D. A. Friday, Jinlin 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, Yang Gao, Y. Gao, Yuxi Gao, L. M. Garcia Martin, P. Garcia Moreno, J. García Pardiñas, Parker Taittinger Gardner, Kunal Garg, L. Garrido, C. 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, S. 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, L. Grazette, Giacomo Graziani, A. Grecu, L. M. Greeven, Nathan Allen Grieser, L. 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, N. Harnew, T. H. Harris, M. Hartmann, Sabin Hashmi, Jibo He, Andreea-Irina Hedes, Frédéric Hemmer, Conor Henderson, R. 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, J. F. Hu, Wenhua Hu, Xiaofan Hu, W. Hulsbergen, R. J. Hunter, M. Hushchyn, D. Hutchcroft, M. Idzik, Dmitrii Ilin, P. Ilten, Aleksandr Iniukhin, A. Ishteev, К. Ившин, H. Jage, S. J. Jaimes Elles, S. Jakobsen, Eddy Jans, B. K. Jashal, A. Jawahery, Chanka Jayaweera, Vukan Jevtic, Z. Jiao, Emily Kaiyin Jiang, Xiaojie Jiang, Y. Jiang, Yuyang Jiang, Esteban Jimenez Moya, Nicholas Jindal, M. John, Allen Cris John Rubesh Rajan, D. Johnson, Christopher Jones, Salil Joshi, Beat Jost, Juan Jose Juan Castella, Nathan Jurik, Izabela Juszczak, Dimitrios Kaminaris, S. Kandybei, Michael James Kane, Youen Kang, C. Kar, M. Karacson, Anni Kauniskangas, J. W. Kautz, M. K. Kazanecki, F. Keizer, Matthew Kenzie, T. Ketel, B. Khanji, Anastasiia Kharisova, Sergei Kholodenko, Gaelle Khreich, Thomas Kirn, Veronica Soelund Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, 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, Igor Kyryllin, D. Lacarrère, Paloma Laguarta Gonzalez, A. Lai, A. Lampis, Davide Lancierini, Clara Landesa Gomez, J. J. Lane, G. Lanfranchi, C. Langenbruch, Jan Langer, Oliver Lantwin, T. Latham, Federico Lazzari, C. Lazzeroni, R. Le Gac, Ho Sang Lee, R. Lefèvre, Alexander 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, K. Li, Lanxing Li, Manshu Li, Peilian Li, Pei-Rong Li, Q. Li, Tiange Li, T. Li, Yanru Li, Y. Li, Y. Li, Zhengchen Lian, Qiming Liang, Xixin Liang, Simone Libralon, A. Lightbody, Chuangxin Lin, T. Lin, R. Lindner, Henry James Linton, Roman Litvinov, D. Liu, Frank Xiangyu Liu, Guoming Liu, Kai Liu, Shuaiyi Liu, S. 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, Yiheng Luo, Anna Lupato, E. Luppi, Kate Lynch, Xiao-Rui Lyu, Ge Ma, S. Maccolini, F. Machefert, Florin Maciuc, Bridget Mack, Innes Mackay, Lauren Grace Mackey, L. R. Madhan Mohan, M. J. Madurai, Daniel Magdalinski, D. Maisuzenko, J. J. Malczewski, S. Malde, L. Malentacca, Alexander Malinin, Timofei Maltsev, G. Manca, G. Mancinelli, C. Mancuso, Rafel Manera Escalero, Federico Manganella, Daniele Manuzzi, D. Marangotto, J. F. Marchand, R. Marchevski, U. Marconi, Edoardo Mariani, S. Mariani, C. Marín Benito, J. Marks, Alexander Mclean Marshall, Lucas Martel, G. Martelli, G. 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127Institutions déclarées
24Pays d’affiliation déclarés
Résumé fourni par la source
A bstract A model-independent determination of the CKM angle γ is presented, using the B ± → [ K + K − π + π − ] D h ± and B ± → [ π + π − π + π − ] D h ± decays, with h = K, π . This measurement is the first phase-space binned study of these decay modes, and uses a sample of proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb − 1 . The phase-space bins are optimised for sensitivity to γ , and in each bin external inputs from the BESIII experiment are used to constrain the charm strong-phase parameters. The result of this binned analysis is $$ \gamma ={\left(53.{9}_{-8.9}^{+9.5}\right)}^{{}^{\circ}} $$ γ = 53 . 9 − 8.9 + 9.5 ° , where the uncertainty includes both statistical and systematic contributions. Furthermore, when combining with existing phase-space integrated measurements of the same decay modes, a value of $$ \gamma ={\left(52.{6}_{-6.4}^{+8.5}\right)}^{{}^{\circ}} $$ γ = 52 . 6 − 6.4 + 8.5 ° is obtained, which is one of the most precise determinations of γ to date.
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
- A model-independent measurement of the CKM angle γ in the decays B± → [K+K−π+π−]Dh± and B± → [π+π−π+π−]Dh± (h = K, π)
- Date Crossref
- 09/01/2026
- Éditeur
- Springer Science and Business Media LLC
- 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
National Institute for Subatomic PhysicsUniversity of WarwickUniversity of ZurichUniversity of LiverpoolSyracuse UniversityUniversidade de Santiago de CompostelaUniversity of BristolUppsala UniversityCentre National de la Recherche ScientifiqueUniversité Paris-SaclayInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire de Physique des 2 Infinis Irène Joliot-CurieUniversity of MichiganUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiTU Dortmund UniversityMachine Intelligence Research InstituteLamarr Institute for Machine Learning and Artificial IntelligenceVilnius UniversityEuropean Organization for Nuclear ResearchUniversity of ManchesterUniversity of CambridgeDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversidade Federal do Rio de JaneiroPeking UniversityIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeIstituto Nazionale di Fisica Nucleare, Sezione di FerraraUniversidade da CoruñaIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaUniversity of Chinese Academy of SciencesUniversity of Rome Tor VergataIstituto Nazionale di Fisica Nucleare, Roma Tor VergataConsejo Nacional de RectoresAix-Marseille UniversitéCentre de physique des particules de MarseilleFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicÉcole Polytechnique Fédérale de LausanneMassachusetts Institute of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-Saclay - Etablissement de SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversÉcole PolytechniqueLaboratoire Leprince-RinguetUniversity of OxfordHeidelberg UniversityPontifícia Universidade Católica do Rio de JaneiroIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of EdinburghJagiellonian UniversityAGH University of KrakowIstituto Nazionale di Fisica Nucleare, Sezione di PisaCentro Brasileiro de Pesquisas FísicasIstituto Nazionale di Fisica Nucleare, Sezione di GenovaIstituto Nazionale di Fisica Nucleare, Sezione di Roma IUniversitat Ramon LlullIstituto Nazionale di Fisica Nucleare, Sezione di PadovaTaras Shevchenko National University of KyivInstitute of Nuclear Physics, Polish Academy of SciencesUniversity of BonnImperial College LondonLaboratoire d’Annecy de Physique des ParticulesUniversité Savoie Mont BlancUniversity of Modena and Reggio EmiliaUniversity of VictoriaLos Alamos National LaboratoryMaastricht UniversityUniversity of FerraraAustralian Regenerative Medicine InstituteMonash UniversityCracow University of TechnologyThe Ohio State UniversityIstituto Nazionale di Fisica Nucleare, Sezione di CagliariUniversity of PaduaWuhan UniversityUniversitat de BarcelonaUniversidade Estadual de Campinas (UNICAMP)University of BolognaUniversity of GenoaUniversity of MilanIstituto Nazionale di Fisica Nucleare, Sezione di MilanoTsinghua UniversityEötvös Loránd UniversityHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of GlasgowUniversity of CincinnatiNational Autonomous University of HondurasHunan UniversityUniversity of CagliariUniversity of GroningenFederal Center for Technological Education Celso Suckow da FonsecaUniversity of Bari Aldo MoroCentral China Normal UniversityUniversity College DublinSouth China Normal UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaRutherford Appleton LaboratoryUniversity of PerugiaUniversitat de ValènciaInstituto de Física CorpuscularUniversity of Maryland, College ParkKharkiv Institute of Physics and TechnologyUniversity of FreiburgLIP6University of PisaUniversity College of Applied ScienceRWTH Aachen UniversityUniversidad Nacional de ColombiaUniversity of BirminghamScuola Normale SuperioreHenan Normal UniversityLanzhou UniversityUniversity of BergamoRuhr University BochumUniversidad de Ingeniería y TecnologíaUniversity of SienaUniversity of BasilicataMax Planck Institute for Nuclear PhysicsUniversidad de AlcaláUniversity of Urbino Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Sujets associés
Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsParticle Accelerators and Free-Electron Lasers