Evidence for a New Structure in the J/ψp and J/ψp¯ Systems In
R. Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,Thomas Ackernley, B. Adeva, M. Adinolfi,Hossein Afsharnia,Christine Angela Aidala, Salvatore Aiola, Z. Ajaltouni, S. Akar, J. Albrecht,Federico Alessio,Michael Alexander, Alejandro Alfonso Albero,Zakariya Aliouche, G. Alkhazov,P. Alvarez Cartelle, S. Amato,Jake Lewis Amey, Y. Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov, M. Andreotti, F. Archilli,Alexander Artamonov, M. Artuso, Kenenbek Arzymatov, E. Aslanides, Michele Atzeni,Benjamin Audurier,Sebastian Bachmann, Marie Bachmayer,John Back,Pablo Baladron Rodriguez, V. Balagura, W. Baldini, Juan Baptista Leite,Roger Barlow, S. Barsuk, W. Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi, Baasansuren Batsukh,Alexander Battig, A. Bay,Anja Beck,Maik Becker, F. Bedeschi, I. Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin, Violaine Bellée, K. Belous,Ilia Belov, I. Belyaev, G. Bencivenni, E. Ben-Haim,Аlexander Berezhnoy, R. Bernet, Daniel Berninghoff,Harris Conan Bernstein, Claudia Bertella,Alessandro Bertolin,Christopher Betancourt, Federico Betti, Ia. Bezshyiko, Iaroslava Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker, S. Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze, A. Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas A. Blake, F. Blanc, S. Blusk, Dana Bobulska,Julian Alexander Boelhauve,Óscar Boente García,Thomas Boettcher, Alexey Boldyrev, A. Bondar, N. Bondar, S. Borghi, Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,Themistocles Bowcock,Alexandre Boyer, C. Bozzi, Matthew John Bradley, Svende Braun,Alexandre Brea Rodríguez,Michael Brodski, J. Brodzicka, Arnau Brossa Gonzalo,Davide Brundu, Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr, A. Bursche,Anatoly Butkevich, Jordy Sebastiaan Butter, J. Buytaert,Wiktor Byczynski, S. Cadeddu,Hao Cai, R. Calabrese,Lukas Calefice,Liliet Calero Diaz,Stefano Calí, Ryan Calladine, M. Calvi, M. Calvo Gomez, Patrícia Camargo Magalhães, P. Campana, Angel Fernando Campoverde Quezada,Simone Capelli, Lorenzo Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, Ina Carli, Paolo Carniti,Leon David Carus, K. Carvalho Akiba,Adrián Casais Vidal, G. Casse, M. Cattaneo,Giovanni Cavallero, Sara Celani,Jacopo Cerasoli, D. Červenkov, Abbie Jane Chadwick,Matthew George Chapman, M. Charles, Philippe Charpentier,Ph. Charpentier, Georgios Chatzikonstantinidis, Carlos Alberto Chavez Barajas,Maximilien Chefdeville, Chen,Shanzhen Chen,Aleksei Chernov,Veronika Chobanova, Serhii Cholak, M. Chrząszcz,Alexsei Chubykin,Vladimir Chulikov,Paolo Ciambrone, R. Coackley, Xabier Cid Vidal, G. Ciezarek, P.E.L. Clarke, M. Clemencic, Harry Cliff, J. Closier,John Leslie Cobbledick, V. Coco,Joao a B Coelho, J. Cogan, E. Cogneras,Lucian Cojocariu, P. Collins,Tommaso Colombo, Liliana Congedo, A. 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Physical review letters（2022）
Cited 29|Views4
Abstract
An amplitude analysis of flavor-untagged B_{s}^{0}→J/ψpp[over ¯] decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb^{-1}. Evidence for a new structure in the J/ψp and J/ψp[over ¯] systems with a mass of 4337_{-4}^{+7} _{-2}^{+2} MeV and a width of 29_{-12}^{+26} _{-14}^{+14} MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned J^{P} hypothesis.
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