Observation of the decays $ {B}_{(s)}^0 $ → D$_{s1}$(2536)$^{∓}$K$^{±}
L3 Collaboration, R Aaij, Christina Agapopoulou, Jonah Evan Blank, Carlos Vázquez Sierra, S Vecchi, Jaap Velthuis, M Veltri, A Venkateswaran, M Vesterinen, D Vieira, Maria Vieites Diaz, X Vilasis-Cardona, Eva Vilella Figueras, S Blusk, Andrea Villa, P Vincent, Felicia Carolin Volle, D Vom Bruch, V Vorobyev, N Voropaev, Kimberley Vos, Constantinos Vrahas, John Walsh, Eliot Jane Walton, D Bobulska, Guanyue Wan, Chishuai Wang, Ganrong Wang, Jialu Wang, Jianchun Wang, Jianqiao Wang, Jike Wang, Mengzhen Wang, Nanyang Wang, Rui Wang, Vladimir Bocharnikov, Xiaolin Wang, Yilong Wang, Zhenzi Wang, Zirui Wang, Ziyi Wang, Jake Alexander Ward, Nigel Watson, D Websdale, Y Wei, Benedict Donald C. Westhenry, Julian Alexander Boelhauve, Dylan Jaide White, M Whitehead, Aidan Richard Wiederhold, D Wiedner, G S Wilkinson, Michael K. Wilkinson, I Williams, Mike Williams, Mark Richard James Williams, Richard Morgan Williams, Oscar Boente Garcia, Fergus Wilson, W Wislicki, M Witek, L Witola, Cheuk Ping Wong, G Wormser, Stephen Wotton, Hangyi Wu, Jie Wu, Yanxi Wu, T Boettcher, K Wyllie, Shu Xian, Z Xiang, Y D Xie, A Xu, Jingyi Xu, Lei Xu, Mei‐Yan Xu, ZM Xu, Abhishek Bohare, Di Yang, Shuangli Yang, Xiaomin Yang, Youhua Yang, Zhenwei Yang, Zishuo Yang, Vsevolod Yeroshenko, Ho Yin Dereck Yeung, Alexey Boldyrev, H Yin, Chenxu Yu, Jiesheng Yu, X Yuan, E Zaffaroni, M Zavertyaev, M Zdybal, M Zeng, Chenjia Zhang, D Zhang, Carolina Bolognani, Jianyu Zhang, Liming Zhang, Shulei Zhang, Shunan Zhang, Yanxi Zhang, Zhang Yu, Ya Zhao, Alina Zharkova, A Zhelezov, Y. Zheng, C. Aidala, Riccardo Bolzonella, Tianwen Zhou, X Zhou, Yi Zhou, Valeriia Zhovkovska, Linxuan Zhu, Xianglei Zhu, Xiaoyu Zhu, Zhanwen Zhu, V Zhukov, Jiahui Zhuo, N Bondar, Quan Zou, S Zucchelli, D Zuliani, G Zunica, Federica Borgato, S Borghi, M Borsato, Jozef Tomasz Borsuk, Sonia Amina Bouchiba, Themistocles Bowcock, A Boyer, C Bozzi, Z Ajaltouni, Matthew J. Bradley, Svende Braun, Alexandre Brea Rodriguez, Nils Breer, J Brodzicka, Arnau Brossa Gonzalo, James David Brown, D Brundu, A Buonaura, Laura Buonincontri, Simon Akar, Aodhan Tomas Burke, C Burr, A Bursche, A Butkevich, Jordy Sebastiaan Butter, J Buytaert, W Byczynski, S Cadeddu, Hao Cai, R Calabrese, K Carvalho Akiba, L Calefice, S Cali, Marta Calvi, Miriam Calvo Gomez, Jose Ivan Cambon Bouzas, P Campana, Daniel Hugo Campora Perez, Angel Fernando Campoverde Quezada, S Capelli, L Capriotti, Pietro Albicocco, Angelo Carbone, Lidia Carcedo Salgado, R Cardinale, A Cardini, P Carniti, L Carus, Adrian Casais Vidal, Rowina Caspary, G Casse, M Cattaneo, Johannes Albrecht, G Cavallero, Viola Cavallini, S Celani, J Cerasoli, Daniel Cervenkov, Abbie Jane Chadwick, Ibrahim Chahrour, Matthew George Chapman, M Charles, Philippe Charpentier, Federico Alessio, Ph. Charpentier, Carlos Alberto Chavez Barajas, M Chefdeville, Chen Chen, Shanzhen Chen, A Chernov, Serhii Chernyshenko, V Chobanova, S Cholak, M Chrzaszcz, Michael Alexander, A Chubykin, V Chulikov, P Ciambrone, Maria Flavia Cicala, Xabier Cid Vidal, G Ciezarek, Pierfrancesco Cifra, Giuseppe Ciullo, P. E. L. Clarke, Marco Clemencic, Alejandro Alfonso Albero, Harry Cliff, J Closier, John Leslie Cobbledick, Carlos Eduardo Cocha Toapaxi, V Coco, J Cogan, E Cogneras, L Cojocariu, Paula Collins, T Colombo, Ahmed Sameh Wagih Abdelmotteleb, Z Aliouche, Albert Comerma-Montells, L Congedo, A Contu, N Cooke, Imanol Corredoira, Anthony Correia, G Corti, Josephine Jane Cottee Meldrum, B Couturier, Daniel Charles Craik, Paula Alvarez Cartelle, Melissa Maria Cruz Torres, R Currie, C Alvarado Silva, Shakhzod Dadabaev, Lingyun Dai, Xinchen Dai, E Dall’Occo, J Dalseno, C D’Ambrosio, Jessy Daniel, Renaud Amalric, A Danilina, P d’Argent, Alexander Davidson, Jonathan Edward Davies, A Davis, O De Aguiar Francisco, Jan de Boer, K De Bruyn, S De Capua, M De Cian, S Amato, Ulisses De Freitas Carneiro Da Graca, Erika De Lucia, J M Miranda, L De Paula, M De Serio, D De Simone, P De Simone, Fabio De Vellis, J Low de Vries, Cameron Thomas Dean, Jake Lewis Amey, Francesco Debernardis, D Decamp, Vlad-George Dedu, L Del Buono, B Delaney, Hans Peter Dembinski, V Denysenko, O Deschamps, F Dettori, B Dey, Yasmine Amhis, P Di Nezza, Igor Diachkov, S Didenko, Shuchong Ding, V Dobishuk, Aleksandrina Docheva, Aleksandr Dolmatov, Chenzhi Dong, Amanda May Donohoe, F Dordei, L An, Alberto C. dos Reis, L Douglas, Anthony Gavin Downes, Weisong Duan, Piotr Jakub Duda, Maciej Wojciech Dudek, L Dufour, V Duk, Paolo Durante, Maciej Duras, L Anderlini, John Matthew Durham, D Dutta, A Dziurda, A Dzyuba, S Easo, Ellinor Eckstein, U Egede, Artem Egorychev, V Egorychev, Caetano Eirea Orro, Martin Andersson, S Eisenhardt, Enoch Ejopu, S Ek-In, L Eklund, Mohamed Elashri, Jan Hendrik Ellbracht, S Ely, A Ene, E Epple, S Escher, Aleksei Andreianov, J Eschle, Sevda Esen, Timothy Evans, Federica Fabiano, Lucas Falcao, Yanting Fan, B Fang, Lisa Fantini, Maria Faria, Keira Gwyn Farmer, Carlos Abellán Beteta, Pasquale Andreola, S Farry, D Fazzini, Lukasz Jerzy Felkowski, Mingjie Feng, M Féo, Miguel Fernandez Gomez, Alex Daniel Fernez, F Ferrari, Lino Ferreira Lopes, Fernando Ferreira Rodrigues, M Andreotti, Silvia Ferreres Sole, M Ferrillo, M Ferro-Luzzi, S Filippov, Rosa Anna Fini, Massimiliano Fiorini, M Firlej, Kamil Leszek Fischer, K. M. Fischer, Dillon Scott Fitzgerald, Dimitra Andreou, C Fitzpatrick, T Fiutowski, F Fleuret, M Fontana, F Fontanelli, Lucas Arthur Foreman, L. F. Foreman, R Forty, Daniel Foulds-Holt, Manuel Franco Sevilla, Dong Ao, Markus Frank, E Franzoso, G Frau, C Frei, David Anthony Friday, L. Frontini, Jinlin Fu, Q Fuehring, Yuki Fujii, Tommaso Fulghesu, F Archilli, E Gabriel, Giuliana Galati, Maria Domenica Galati, Abraham Gallas Torreira, D Galli, Silvia Gambetta, M Gandelman, P Gandini, Han Gao, Rui Gao, A Artamonov, Gao Y, M Garau, Luis Miguel Garcia Martin, Paula Garcia Moreno, Julián García Pardiñas, Beatriz Garcia Plana, Felipe Andres Garcia Rosales, L Garrido, C Gaspar, M Artuso, Robbert Erik Geertsema, Louis Lenard Gerken, Evelina Gersabeck, M Gersabeck, T Gershon, Luca Giambastiani, Fotis Ioannis Giasemis, V Gibson, Henryk Karol Giemza, Alexander Leon Gilman, E Aslanides, M Giovannetti, A Gioventù, P. Gironella Gironell, C Giugliano, Maciej Artur Giza, K Gizdov, Evangelos Leonidas Gkougkousis, Fabian Christoph Glaser, Vladimir Gligorov, C Göbel, M Atzeni, E Golobardes, D. Golubkov, A Golutvin, Alvaro Gomes, Sergio Gomez Fernandez, Fernanda Goncalves Abrantes, M Goncerz, G Gong, James Andrew Gooding, Igor Vladimirovich Gorelov, B Audurier, C Gotti, Jascha Peter Grabowski, Luis Alberto Granado Cardoso, E Graugés, E Graverini, Luke Grazette, G Graziani, A Grecu, Lex Marinus Greeven, Nathan Allen Grieser, Fernando Jesus Abudinén, David Bacher, L Grillo, S Gromov, Chenxi Gu, M Guarise, Manuel Guittiere, Vasilisa Guliaeva, P Günther, Abdul-Kerim Guseinov, E Gushchin, Y Guz, Irene Bachiller Perea, T Gys, T Hadavizadeh, Christos Hadjivasiliou, G Haefeli, C Haen, J Haimberger, Susan Haines, Mohammadtaghi Hajheidari, T Halewood-leagas, Marius Maehlum Halvorsen, S Bachmann, Phoebe Meredith Hamilton, Jan Hammerich, Q Han, Xiaoxue Han, S Hansmann-Menzemer, Lei Hao, N Harnew, T Harrison, M. Hartmann, C Hasse, M Bachmayer, M Hatch, Jibo He, K Heijhoff, Frederic Hemmer, Conor Henderson, Henderson Rd, Arthur Marius Hennequin, K Hennessy, L Henry, James Daniel Herd, John Back, J Heuel, A Hicheur, D Hill, M Hilton, Sophie Elizabeth Hollitt, Joshua Ethan Horswill, Ruiwen Hou, Yingrui Hou, Ned Francis Howarth, Jiangqiao Hu, Aurelien Bailly-reyre, Jifeng Hu, Wenhua Hu, Xiaofan Hu, Wenqian Huang, Huang Xk, W Hulsbergen, Ross John Hunter, M Hushchyn, D Hutchcroft, P Ibis, Pablo Baladron Rodriguez, M Idzik, D Ilin, P Ilten, A Inglessi, Aleksandr Iniukhin, A Ishteev, K Ivshin, R Jacobsson, Hendrik Jage, Sergio Javier Jaimes Elles, V Balagura, S Jakobsen, Eddy Jans, Brij Kishor Jashal, A Jawahery, V Jevtic, Emily Kaiyin Jiang, X. Jiang, Y Jiang, Malcolm John, W Baldini, D. Johnson, Christopher Jones, T Jones, Salil Joshi, Beat Jost, Nathan Jurik, Izabela Juszczak, Dimitrios Kaminaris, S Kandybei, Y Kang, Juan Baptista de Souza Leite, M Karacson, Dmitrii Karpenkov, Maksim Karpov, Anni Kauniskangas, Jacob William Kautz, F Keizer, D I Keller, M Kenzie, T Ketel, B Khanji, T Ackernley, Matteo Barbetti, A Kharisova, S Kholodenko, Gaelle Khreich, T Kirn, Veronica Soelund Kirsebom, O Kitouni, S Klaver, Nico Kleijne, K Klimaszewski, Mateusz Rafal Kmiec, Ivanildo Rui Barbosa, S Koliiev, Lars Kolk, A Kondybayeva, A Konoplyannikov, P Kopciewicz, R Kopecna, P Koppenburg, M Korolev, I Kostiuk, O Kot, Roger Barlow, S Kotriakhova, Anastasiia Kozachuk, P Kravchenko, L Kravchuk, M Kreps, S Kretzschmar, P Krokovny, W Krupa, W Krzemien, Jakub Kubat, S Barsuk, Sebastian Antoni Kubis, W Kucewicz, M Kucharczyk, V Kudryavtsev, Evgenia Kulikova, Andrzej Kupsc, Bogdan Kutsenko, D Lacarrere, G Lafferty, A Lai, William Barter, A Lampis, D Lancierini, Clara Landesa Gomez, J Athene Lane, R Lane, C Langenbruch, Jan Langer, O Lantwin, T Latham, F Lazzari, M Bartolini, Cristina Lazzeroni, R Le Gac, Sook Hyun Lee, R Lefèvre, A Leflat, S Legotin, Paolo Lenisa, O Leroy, T Lesiak, B Leverington, F Baryshnikov, Anfeng Li, Hengne Li, Kechen Li, Li Li, Peilian Li, Pei-Rong Li, Shiyang Li, T Li, Yiming Li, Jan-Marc Basels, Zhuoming Li, Zhengchen Lian, C X Liang, C Y Lin, Tai-hua Lin, Z. Li, V Lisovskyi, R Litvinov, Guoming Liu, Huanhuan Liu, Giovanni Bassi, Kai Liu, Q Liu, Shuaiyi Liu, Yiming Liu, Ying Liu, Aniol Lobo Salvia, Angelo Loi, Julian Lomba Castro, Thomas Long, I Longstaff, B Batsukh, Jose Lopes, Albert Lopez Huertas, Saúl López Soliño, George Holger Lovell, Ye Lu, Chiara Lucarelli, D Lucchesi, S Luchuk, Ge Ma, V Lukashenko, B Adeva, A Battig, Yiheng Luo, A Lupato, E Luppi, Kate Lynch, Xiao-Rui Lyu, Ruiting Ma, S Maccolini, F Machefert, F Maciuc, Innes Mackay, A BAY, Lakshan Ram Madhan Mohan, M. M. Madurai, Marcus Jonathan Madurai, A Maevskiy, Daniel Magdalinski, D Maisuzenko, Maciej Witold Majewski, Jakub Jacek Malczewski, Sneha Malde, B Malecki, Anja Beck, Lorenzo Malentacca, A Malinin, T Maltsev, G Manca, G Mancinelli, Chiara Mancuso, Rafel Manera Escalero, D Manuzzi, Claudio Andrea Manzari, D Marangotto, Becker, J. F. Marchand, Umberto Marconi, S Mariani, Carla Marin Benito, J Marks, Alexander Mclean Marshall, Phillip John Marshall, Gabriele Martelli, G Martellotti, L Martinazzoli, F Bedeschi, Maurizio Martinelli, Diego Martinez Santos, Fernando Martinez Vidal, A Massafferri, M Materok, R Matev, A Mathad, V Matiunin, C Matteuzzi, Kara Renee Mattioli, Ignacio Bediaga, A Mauri, E Maurice, J Mauricio, Michal Kazimierz Mazurek, M McCann, L Mcconnell, Tamaki Holly Mcgrath, Niall Thomas McHugh, A McNab, R McNulty, A Beiter, B Meadows, G Meier, D Melnychuk, Marcel Merk, A Merli, Lucas Meyer Garcia, Dexing Miao, Han Miao, M Mikhasenko, Diego Alejandro Milanes, S Belin, M N. Minard, Alessandro Minotti, Elisa Minucci, Tristan Miralles, Sara Elizabeth Mitchell, B Mitreska, Dominik Stefan Mitzel, Atanu Modak, A Mödden, Rizwaan Adeeb Mohammed, V Bellee, Razvan-Daniel Moise, Sergei Mokhnenko, T Mombächer, Matthew David Monk, Igancio Alberto Monroy, Stephane Monteil, Angel Morcillo Gomez, Gianfranco Morello, Michael Joseph Morello, Maurice Pierre Morgenthaler, K Belous, J Moron, Adam Benjamin Morris, Andrew George Morris, R Mountain, H Mu, Zeqing Mu, Emir Muhammad, Franz Muheim, Mick Mulder, Katharina Müller, M Adinolfi, I Belov, Federico Mũnoz-Rojas, Rebecca Murta, P Naik, T Nakada, Raja Nandakumar, T Nanut, I Nasteva, M Needham, N Neri, S Neubert, I Belyaev, Niko Neufeld, Petr Neustroev, R Newcombe, Janina Nicolini, Davide Nicotra, Elisabeth Maria Niel, N Nikitin, Piet Nogga, Niklas Stefan Nolte, Camille Normand, Gaya Benane, Julio Novoa Fernandez, Gabriel Matthew Nowak, C E Nuñez, Havva Hasret Nur, H. N. Nur, A Oblakowska-Mucha, V Obraztsov, T. Oeser, Shinichi Okamura, R Oldeman, G Bencivenni, Federica Oliva, Micol Olocco, C. J. G. Onderwater, Ryunosuke Hugo O'Neil, Juan Martin Otalora Goicochea, Tatiana Ovsiannikova, P Owen, Maria Aranzazu Oyanguren, Özlem Özçelik, Klaas Ole Padeken, E Ben-Haim, B Pagare, Preema Rennee Pais, T Pajero, A Palano, M Palutan, G Panshin, Lorenzo Paolucci, A Papanestis, M Pappagallo, Luciano Pappalardo, A Berezhnoy, C Pappenheimer, C Parkes, B Passalacqua, G Passaleva, Daniele Passaro, A Pastore, Mitesh Patel, Jairus Tristan Patoc, C Patrignani, Christopher James Pawley, Roland Bernet, A Pellegrino, Monica Pepe Altarelli, S Perazzini, D Pereima, Asier Pereiro Castro, P Perret, Alberto Perro, Konstantinos Petridis, A Petrolini, S Petrucci, Sergi Bernet Andres, Hang Pham, A Philippov, L Pica, M Piccini, B Pietrzyk, G Pietrzyk, D Pinci, Flavio Pisani, Marco Pizzichemi, V Placinta, D Berninghoff, Maximo Plo Casasus, F Polci, Marco Poli Lener, A Poluektov, N Polukhina, I Polyakov, Erica Polycarpo, S Ponce, D Popov, S Poslavskii, Harris Conan Bernstein, K Prasanth, L Promberger, C Prouve, V Pugatch, Veronique Puill, G Punzi, Hongrong Qi, Wenbin Qian, Ning Qin, Sanqiang Qu, Patrik Harri Adlarson, C Bertella, R Quagliani, B Rachwal, Jonas Rademacker, Rohan Rajagopalan, Matteo Rama, Manuel Ramírez García, Miguel Ramos Pernas, Murilo Rangel, F Ratnikov, G Raven, A Bertolin, Miguel Rebollo De Miguel, F Redi, Jake Reich, F Reiss, Zan Ren, P. K. Resmi, R Ribatti, Gabriel Ricart, Domenico Riccardi, S Ricciardi, C Betancourt, Kate Abigail Richardson, Mary Richardson-Slipper, K Rinnert, P Robbe, G. Philip Robertson, E Rodrigues, Emilio Xose Rodriguez Fernandez, Jairo Alexis Rodriguez Lopez, Efren Rodriguez Rodriguez, Alexander Rogovskiy, F Betti, Rolf D rr, A Rollings, P Roloff, V Romanovskiy, Marcos Romero Lamas, Antonio Romero Vidal, Gabriele Romolini, Federico Ronchetti, M Rotondo, Matthew Scott Rudolph, Josh Bex, T Ruf, Ramon Angel Ruiz Fernandez, Joan Ruiz Vidal, A Ryzhikov, J Ryzka, Juan Jose Saborido Silva, N Sagidova, N Sahoo, B Saitta, Matteo Salomoni, Ia. Bezshyiko, Cristina Sanchez Gras, Izaac Sanderswood, R Santacesaria, Cibran Santamarina Rios, M Santimaria, Leonardo Santoro, E Santovetti, D Saranin, G Sarpis, M Sarpis, Iaroslava Bezshyiko, A Sarti, C Satriano, Alessia Satta, Miroslav Saur, D Savrina, H Sazak, Luke George Scantlebury Smead, Alessandro Scarabotto, Stefan Schael, Sigrid Scherl, J Bhom, Amy Marie Schertz, M Schiller, H Schindler, M Schmelling, B R Schmidt, S Schmitt, Olivier Schneider, A Schopper, M Schubiger, Nicole Schulte, Lingzhu Bian, Sebastian Schulte, Marie Helene Schune, R Schwemmer, Georg Schwering, B Sciascia, Augusto Sciuccati, S Sellam, A Semennikov, Mara Senghi Soares, A Sergi, Martin Stefan Bieker, N Serra, L Sestini, A Seuthe, Yiduo Shang, Desmond Mzamo Shangase, M Shapkin, I Shchemerov, L Shchutska, T Shears, Lev Shekhtman, H Afsharnia, Nicolo Vladi Biesuz, Zhihong Shen, Shuqi Sheng, Vladimir Shevchenko, Boan Shi, Edward Brendan Shields, Y Shimizu, E Shmanin, Roman Shorkin, Joseph David Shupperd, Benedetto Gianluca Siddi, P Billoir, Rafael Silva Coutinho, G Simi, S Simone, Minni Singla, N Skidmore, Raphael Skuza, T Skwarnicki, Mark Slater, Jennifer Clare Smallwood, John Gordon Smeaton, A. Biolchini, E Smith, K C M Smith, Mark Smith, A Snoch, Lais Soares Lavra, Michael Sokoloff, F. J. P. Soler, Anatoly Solomin, A Solovev, I Solovyev, M Birch, Rongrong Song, Yunxuan Song, Yuxiang Song, Yintong Song, Felipe Luan Souza De Almeida, Bruno Souza De Paula, Elisabetta Spadaro Norella, Eugenia Spedicato, Jannis Guido Speer, Eduard Spiridenkov, Fionn Caitlin Ros Bishop, Patrick Spradlin, V. Sriskaran, F Stagni, Marian Stahl, S Stahl, Seophine Stanislaus, Eloise Noelle Stein, O Steinkamp, O Stenyakin, H Stevens, Alexander Bitadze, D Strekalina, Y S. Su, F Suljik, Jiayin Sun, L Y H Sun, Yipeng Sun, Paul Nathaniel Swallow, K Swientek, Francesca Swystun, A Szabelski, A Bizzeti, T Szumlak, Maciej Pawel Szymanski, Yinghua Tan, S Taneja, Martin Duy Tat, Aleksandr Terentev, Frederic Teubert, Eric Thomas, Daniel James David Thompson, H. Tilquin, Michele Piero Blago, V Tisserand, Stephane T'Jampens, M Tobin, L Tomassetti, Giorgia Tonani, Xingyu Tong, Diego Torres Machado, Luca Toscano, Da Yu Tou, C Trippl, Thomas Blake, G Tuci, N Tuning, A Ukleja, Daniel Joachim Unverzagt, Eduard Ursov, A Usachov, A Ustyuzhanin, U Uwer, V Vagnoni, A Valassi, F Blanc, G Valenti, Nuria Valls Canudas, Maarten Van Dijk, H Van Hecke, E van Herwijnen, Charlotte Barbara Van Hulse, Raphael Van Laak, M van Veghel, Ricardo Vazquez Gomez, Pablo Vazquez Regueiro