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2024
preprint
Study of $D_{s1}(2460)^{+}\to D_{s}^{+}\pi^{+}\pi^{-}$ in $B\to {\bar{D}}^{(*)}D_{s}^{+}\pi^{+}\pi^{-}$ decays
R. Aaij, A. S. W. Abdelmotteleb, F. Abudinén, T. Ackernley, A. A. Adefisoye, B. Adeva, M. Adinolfi, P. Adlarson, C. Agapopoulou, C. Aidala, Ziad Ajaltouni, S. Akar, K. Carvalho Akiba, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, Zakariya Aliouche, Renaud Amalric, S. Amato, J. L. Amey, Yasmine Amhis, Liupan An, L. Anderlini, M. Andersson, A. Andreianov, P. Andreola, M. Andreotti, D. Andreou, Alessia Anelli, D. Ao, F. Archilli, Matteo Argenton, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, D. Bacher, S. Bachmann, Marie Bachmayer, J. J. Back, V. Balagura, Anna Balboni, W. Baldini, Luca Balzani, Haoran Bao, M. Barbetti, Ivanildo Rui Barbosa, R. J. Barlow, Mikhail Barnyakov, Sergey Barsuk, W. Barter, M. Bartolini, Justin Bartz, J. M. Basels, Saliha Bashir, G. Bassi, 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, Gaya Benane, G. Bencivenni, Eli Ben-Haim, A. Berezhnoy, R. Bernet, A. Bertolin, C. Betancourt, F. Betti, J. Bex, Ia. Bezshyiko, J. Bhom, M. S. Bieker, N. V. Biesuz, Pierre Billoir, A. Biolchini, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti, T. Blake, F. Blanc, Jonah Evan Blank, S. Blusk, Vladimir Bocharnikov, J. A. Boelhauve, T. Boettcher, A. Bohare, A. S. Boldyrev, Carolina Bolognani, R. Bolzonella, Riccardo Bonacci, N. Bondar, Aleksandar Bordelius, F. Borgato, S. Borghi, M. Borsato, J. T. Borsuk, Sonia Amina Bouchiba, Marcelo Bovill, T. J. V. Bowcock, A. Boyer, C. Bozzi, Nils Breer, Jolanta Brodzicka, James David Brown, D. Brundu, E. Buchanan, A. Buonaura, L. Buonincontri, A. T. Burke, C. Burr, J. S. Butter, Jan Buytaert, W. Byczynski, S. Cadeddu, Hao Cai, Alois Caillet, R. Calabrese, Lukas Calefice, S. Cali, M. Calvi, P. Campana, S. Capelli, Ronald Gerardo Caravaca-Mora, A. Carbone, R. Cardinale, A. Cardini, P. Carniti, Leon David Carus, R. Caspary, G. Casse, M. Cattaneo, G. Cavallero, V. Cavallini, S. Celani, Daniel Cervenkov, Sara Cesare, A. J. Chadwick, Ibrahim Chahrour, Matthew Charles, Ph. Charpentier, Evridki Chatzianagnostou, M. Chefdeville, 陈晨, S. Chen, Zewen Chen, A. Chernov, S. Chernyshenko, Xenofon Chiotopoulos, Veronika Chobanova, Serhii Cholak, M. Chrząszcz, A. Chubykin, V. Chulikov, P. Ciambrone, Gregory Ciezarek, P. Cifra, Peter Clarke, M. Clemencic, H. V. Cliff, Joel Closier, V. Coco, Julien Cogan, Eric Cogneras, L. Cojocariu, Spencer Edward Collaviti, Paula Collins, T. Colombo, M. Colonna, A. Comerma-Montells, L. Congedo, A. Contu, N. Cooke, I. Corredoira, Anthony Correia, G. Corti, B. Couturier, D. C. Craik, R. Currie, C. L. Da Silva, Shakhzod Dadabaev, E. Dall’Occo, J. Dalseno, C. D’Ambrosio, J. Daniel, A. Danilina, P. d’Argent, Alexander Davidson, J. E. Davies, Adam Davis, Oscar de Aguiar Francisco, Camilla de Angelis, Federico de Benedetti, Jan de Boer, K. De Bruyn, S. De Capua, Michel de Cian, Erika de Lucia, J. M. De Miranda, L. De Paula, M. De Serio, P. De Simone, F. De Vellis, Jacco de Vries, F. Debernardis, Daniel Decamp, V. Dedu, Sam Michael Dekkers, L. Del Buono, B. Delaney, H.-P. Dembinski, Jianqiao Deng, Vadym Denysenko, O. Deschamps, F. Dettori, B. Dey, P. Di Nezza, I. Diachkov, S. Didenko, S. Ding, Lucas Dittmann, Vasyl Dobishuk, A. D. Docheva, Amanda May Donohoe, F. Dordei, Alberto dos Reis, Andrew Jay Dowling, Weisong Duan, P. Duda, M. W. Dudek, L. Dufour, V. Duk, P. Durante, M. M. Duras, John Matthew 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, L. N. Falcao, Yanting Fan, B. Fang, L. Fantini, Maria Faria, Keira Gwyn Farmer, D. Fazzini, Lukasz Jerzy Felkowski, Mingjie Feng, M. Féo, Alex Daniel Fernez, F. Ferrari, M. Ferrillo, M. Ferro-Luzzi, S. Filippov, Rosa Anna Fini, M. Fiorini, M. Firlej, Kamil Leszek Fischer, Dillon Scott Fitzgerald, C. Fitzpatrick, T. Fiutowski, Frederic Fleuret, Marianna Fontana, Lucas Arthur Foreman, R. Forty, Daniel Foulds-Holt, M. Frank, E. Franzoso, G. Frau, C. Frei, D. A. Friday, J. Fu, Quentin Fuehring, Yuki Fujii, T. Fulghesu, E. Gabriel, G. Galati, M. D. Galati, D. Galli, Silvia Gambetta, M. Gandelman, P. Gandini, Bilal Ahmad Ganie, Tian-Qi Gao, Yang Gao, Yuanning Gao, Yuxi Gao, Parker Taittinger Gardner, Kunal Garg, L. Garrido, C. Gaspar, Robbert Erik Geertsema, Louis Lenard Gerken, E. Gersabeck, M. Gersabeck, Timothy Gershon, Simon Ghizzo, Zahra Ghorbanimoghaddam, L. Giambastiani, Fotis Ioannis Giasemis, V. Gibson, A. Gilman, M. Giovannetti, A. Gioventù, Lucas George Girardey, Carmen Giugliano, Maciej Artur Giza, E. L. Gkougkousis, F. C. Glaser, V. V. Gligorov, C. Göbel, E. Golobardes, D. Golubkov, A. Golutvin, Wojciech Gomułka, M. Goncerz, Guanghua Gong, J. A. Gooding, I. Gorelov, C. Gotti, J. P. Grabowski, E. Graugés, E. Graverini, L. Grazette, G. Graziani, A. Grecu, L. M. Greeven, Nathan Allen Grieser, Lucia Grillo, S. Gromov, C. Gu, M. Guarise, Laetitia Guerry, Manuel Guittiere, Vasilisa Guliaeva, P. A. Günther, Abdul-Kerim Guseinov, E. Gushchin, Yury Guz, Thierry Gys, Kai Sebastian Habermann, T. Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, Mohammadtaghi Hajheidari, George H. Hallett, Marius Maehlum Halvorsen, Phoebe Meredith Hamilton, J. Hammerich, Qundong Han, Xiaoxue Han, S. Hansmann-Menzemer, Lei Hao, N. Harnew, M. Hartmann, Sabin Hashmi, Jibo He, Frédéric Hemmer, C. Henderson, R. D. L. Henderson, A. M. Hennequin, K. Hennessy, Louis Henry, James Daniel Herd, J. Heuel, A. Hicheur, J. Horswill, Ruiwen Hou, Y. R. Hou, Ned Francis Howarth, J. F. Hu, Wenhua Hu, X. Hu, Wenqian Huang, W. Hulsbergen, Ross John Hunter, M. Hushchyn, D. Hutchcroft, M. Idzik, Dmitrii Ilin, P. Ilten, A. Inglessi, Aleksandr Iniukhin, A. Ishteev, К. Ившин, R. Jacobsson, H. Jage, S. Jakobsen, E. Jans, Brij Kishor Jashal, A. Jawahery, Vukan Jevtic, Emily Kaiyin Jiang, X. Jiang, Yi Jiang, Yuyang Jiang, M. John, D. Johnson, Christopher Jones, Thomas Peter Jones, Salil Joshi, Beat Jost, N. Jurik, Izabela Juszczak, Dimitrios Kaminaris, S. Kandybei, Michael James Kane, Youen Kang, C. Kar, Matthias Karacson, Dmitrii Karpenkov, Anni Kauniskangas, J. W. Kautz, M. K. Kazanecki, Floris Keizer, Matthew Kenzie, T. Ketel, B. Khanji, Anastasiia Kharisova, S. Kholodenko, Gaëlle Khreich, T. Kirn, Veronica Soelund Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, K. Klimaszewski, M. R. Kmiec, Lars Kolk, Anatoly Konoplyannikov, P. Kopciewicz, P. Koppenburg, M. Korolev, Igor Kostiuk, O. Kot, Sofia Kotriakhova, Anastasiia Kozachuk, Polina Kravchenko, Leonid Kravchuk, M. Kreps, P. Krokovny, W. Krupa, W. Krzemień, Oleksandr Kshyvanskyi, Sebastian Antoni Kubis, M. Kucharczyk, Vasily Kudryavtsev, Evgenia Kulikova, A. Kupść, Bogdan Kutsenko, D. Lacarrère, A. Lai, A. Lampis, D. Lancierini, J. J. Lane, R. Lane, G. Lanfranchi, C. Langenbruch, Jan Langer, O. Lantwin, T. Latham, F. Lazzari, Cristina Lazzeroni, R. Le Gac, Ho Sang Lee, R. Lefèvre, A. Leflat, S. Legotin, Marion Lehuraux, O. Leroy, T. Lesiak, Ezra Douglas Lesser, B. Leverington, Anfeng Li, C. Li, H. Li, Kechen Li, Lanxing Li, Manshu Li, Peilian Li, Pei‐Rong Li, Qinze Li, Shiyang Li, Tiange Li, Yanru Li, Yiming Li, Zhengchen Lian, X. Liang, Simone Libralon, C. X. Lin, T. Lin, R. Lindner, Henry James Linton, V. Lisovskyi, Roman Litvinov, Frank Xiangyu Liu, Guoming Liu, Kai Liu, Shuaiyi Liu, Weijie Liu, Ying Liu, A. Loi, Thomas Long, Jose Lopes, Qiuchan Lu, C. Lucarelli, D. Lucchesi, V. Lukashenko, Anna Lupato, E. Luppi, Kate Lynch, X. R. Lyu, Ge Ma, S. Maccolini, F. Machefert, F. Maciuc, Bridget Mack, Innes Mackay, Lauren Grace Mackey, M. J. Madurai, A. Maevskiy, Daniel Magdalinski, D. Maisuzenko, M. W. Majewski, J. J. Malczewski, S. Malde, L. Malentacca, Alexander Malinin, Timofei Maltsev, G. Manca, G. Mancinelli, Chiara Mancuso, Federico Manganella, Daniele Manuzzi, D. Marangotto, J. F. Marchand, R. Marchevski, U. Marconi, Edoardo Mariani, S. Mariani, J. Marks, Alexander Mclean Marshall, Lucas Martel, G. Martelli, G. Martellotti, L. Martinazzoli, M. Martinelli, A. Massafferri, R. Matev, A. Mathad, V. Matiunin, C. Matteuzzi, K. R. Mattioli, A. Mauri, Emilie Maurice, J. Mauricio, Pierre Paul Louis Mayencourt, M. Mazurek, Michael Mccann, L. Mcconnell, T. H. McGrath, N. T. McHugh, A. McNab, R. McNulty, B. Meadows, G. Meier, D. Melnychuk, Fanjie Meng, M. Merk, A. Merli, Dexing Miao, H. Miao, M. Mikhasenko, D. A. Milanes, A. Minotti, E. Minucci, T. Miralles, B. Mitreska, D. S. Mitzel, Atanu Modak, R. A. Mohammed, R. D. Moise, S. Mokhnenko, T. Mombächer, Matthew David Monk, Stephane Monteil, G. Morello, M. J. Morello, Maurice Pierre Morgenthaler, J. Moroń, Wouter 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, P. Naik, T. Nakada, R. Nandakumar, Irina Nasteva, M. Needham, N. Néri, S. Neubert, N. Neufeld, P. Neustroev, J. Nicolini, D. Nicotra, Elisabeth Maria Niel, N. Nikitin, Pedro Nogarolli, Piet Nogga, C. Normand, Gabriel Matthew Nowak, C. Nunez, Havva Hasret Nur, A. Obłąkowska-Mucha, V. Obraztsov, Τ. Oeser, S. Okamura, A. Okhotnikov, Oleksandr Okhrimenko, R. Oldeman, F. Oliva, M. Olocco, C. J. G. Onderwater, R. H. O’Neil, Donata Osthues, P. Owen, Maria Aranzazu Oyanguren, Ö. Özçelik, Francesco Paciolla, Adam Padée, Klaas Padeken, B. Pagare, P. R. Pais, T. Pajero, A. Palano, M. Palutan, Xiaofan Pan, G. Panshin, L. Paolucci, Antonios Papanestis, M. Pappagallo, L. L. Pappalardo, Cheryl Pappenheimer, Christopher Parkes, Dhruvanshu Parmar, Barbara Passalacqua, Giovanni Passaleva, Daniele Passaro, Alessandra Pastore, Mitesh Patel, Jairus Tristan Patoc, C. Patrignani, Antara Paul, C. J. Pawley, Antonio Pellegrino, Ji Peng, S. Perazzini, D. Pereima, P. Perret, A. Perrevoort, Alberto Perro, Konstantinos Petridis, A. Petrolini, Jacob Pfaller, L. Pica, Lorenzo Piccolo, Boleslaw Pietrzyk, G. Pietrzyk, D. Pinci, F. Pisani, Marco Pizzichemi, Vlad-Mihai Placinta, T. Poeschl, Francesco Polci, A. Poluektov, N. Polukhina, I. Polyakov, E. Polycarpo, S. Ponce, D. Popov, S. Poslavskii, C. Prouvé, Daniele Provenzano, G. Punzi, Shah Rukh Qasim, Qucheng Qian, W. B. Qian, Ning Qin, S. Qu, Jonas Rademacker, M. Rama, M. S. Rangel, F. Ratnikov, Gerhard Raven, F. Redi, Jake Reich, F. Reiss, Z. Ren, R. Ribatti, Gabriel Ricart, Domenico Riccardi, S. Ricciardi, Kate Abigail Richardson, Mary Richardson-Slipper, Kurt Rinnert, P. Robbe, E. Rodrigues, E. Rodríguez Rodríguez, Jonas Malte Roensch, Alexander Rogovskiy, David Leonhard Rolf, P. Roloff, V. Romanovskiy, Gabriele Romolini, F. Ronchetti, Tianze Rong, M. Rotondo, Shreya Roy, M. S. Rudolph, A. Ryzhikov, J. Ryżka, José Javier Saavedra-Arias, Rita Sadek, N. Sagidova, Debashis Sahoo, N. Sahoo, B. 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Van Hecke, E. van Herwijnen, Charlotte Barbara van Hulse, Raphael van Laak, Maarten van Veghel, G. A. Vasquez, S. Vecchi, J. J. Velthuis, M. Veltri, A. Venkateswaran, Michele Verdoglia, M. Vesterinen, X. Vilasis-Cardona, A. Villa, Pascal Vincent, Felicia Carolin Volle, Dorothea Vom Bruch, Nikolai Voropaev, K. Vos, Constantinos Vrahas, Jan Peter Wagner, John Walsh, Eliot Jane Walton, Guanyue Wan, Chishuai Wang, Ganrong Wang, Hong-Jian Wang, Jialu Wang, Jianchun Wang, J. Wang, Jike Wang, M. Wang, N. W. Wang, Rui Wang, Xiao Wang, Xiaolin Wang, Xiaohan Wang, Yuhao Wang, Yinghao Wang, Zhenzi Wang, Ziyi Wang, Jake Alexander Ward, M. Waterlaat, N. K. Watson, D. Websdale, Y. Wei, J. Wendel, B. D. C. Westhenry, C. White, Mark Whitehead, Eleanor Whiter, Aidan Richard Wiederhold, Dirk Wiedner, Guy Wilkinson, M. Wilkinson, Mike Williams, Morag Jean Williams, M. Williams, Richard Morgan Williams, Z. Williams, F. F. Wilson, M. Winn, Wojciech Wislicki, M. Witek, L. Witola, Guy Wormser, S. A. Wotton, H. Wu, Jie Wu, Xiangyu Wu, Yanxi Wu, Zhenhong Wu, K. Wyllie, Shu Xian, Zhiyu Xiang, Yuehong Xie, A. Xu, Li Xu, Liangjun Xu, Menglin Xu, Z. Xu, Zhihao Xu, Kang Yang, Shuangli Yang, Xueting Yang, V. Yeroshenko, Hang Yin, Xiaoyue Yin, Chenxu Yu, J. Yu, Yuan Yuan, E. Zaffaroni, M. Zavertyaev, M. Zdybał, Francesco Zenesini, C. Zeng, M. Zeng, C. Zhang, Dongliang Zhang, Jianyu Zhang, Liming Zhang, Shulei Zhang, Shunan Zhang, Y. Zhang, Yuge Zhang, Ya Zhao, A. Zharkova, A. Zhelezov, Shuang Zheng, Xutao Zheng, Tianwen Zhou, Xiaokang Zhou, Yixiong Zhou, Valeriia Zhovkovska, Linxuan Zhu, Xianglei Zhu, Xiaoyu Zhu, V. Zhukov, Jiahui Zhuo, Davide Zuliani, Gianluca Zunica
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Résumé fourni par la source
An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}π^{+}π^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}π^{+}π^{-}$, $B^{+}\to{\bar{D}}^{0} D_{s}^{+}π^{+}π^{-}$, and $B^{0}\to D^{*-}D_{s}^{+}π^{+}π^{-}$ decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13\,$TeV, corresponding to a total integrated luminosity of $9\,\rm{fb}^{-1}$. A clear double-peak structure is observed in the $m(π^{+}π^{-})$ spectrum of the $D_{s1}(2460)^{+}\to D_{s}^{+}π^{+}π^{-}$ decay. The data can be described either with a model including $f_0(500)$, $f_0(980)$ and $f_2(1270)$ resonances, in which the contributions of $f_0(980)$ and $f_2(1270)$ are unexpectedly large, or with a model including $f_0(500)$, a doubly charged open-charm tetraquark state $T_{c\bar{s}}^{++}$ and its isospin partner $T_{c\bar{s}}^{0}$. If the former is considered implausible, the $T_{c\bar{s}}$ states are observed with high significance, and the data are consistent with isospin symmetry. When imposing isospin constraints between the two $T_{c\bar{s}}$ states, their mass and width are determined to be $2327\pm13\pm13\,$MeV and $96\pm16\,^{+170}_{-23}\,$MeV, respectively, where the first uncertainty is statistical and the second is systematic. The mass is slightly below the $DK$ threshold, and a spin-parity of $0^+$ is favoured with high significance.
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Quantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesNuclear physics research studies