$B$-flavor tagging at Belle II
High Energy Physics - Experiment
2022-04-05 v2
Abstract
We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom () mesons at Belle II. The algorithms provide essential inputs for measurements of quark-flavor mixing and charge-parity violation. We validate and evaluate the performance of the algorithms using hadronic decays with flavor-specific final states reconstructed in a data set corresponding to an integrated luminosity of fb, collected at the (4) resonance with the Belle II detector at the SuperKEKB collider. We measure the total effective tagging efficiency to be for a category-based algorithm and for a deep-learning-based algorithm.
Cite
@article{arxiv.2110.00790,
title = {$B$-flavor tagging at Belle II},
author = {F. Abudinén and N. Akopov and A. Aloisio and V. Babu and Sw. Banerjee and M. Bauer and J. V. Bennett and F. U. Bernlochner and M. Bessner and S. Bettarini and T. Bilka and S. Bilokin and D. Biswas and D. Bodrov and J. Borah and M. Bračko and P. Branchini and A. Budano and M. Campajola and G. Casarosa and C. Cecchi and R. Cheaib and V. Chekelian and C. Chen and Y. Q. Chen and H. -E. Cho and S. Cunliffe and G. De Nardo and G. De Pietro and R. de Sangro and S. Dey and A. Di Canto and F. Di Capua and T. V. Dong and G. Dujany and P. Ecker and M. Eliachevitch and T. Ferber and F. Forti and E. Ganiev and A. Gaz and M. Gelb and J. Gemmler and R. Godang and P. Goldenzweig and E. Graziani and K. Hara and A. Hershenhorn and T. Higuchi and E. C. Hill and M. Hohmann and T. Humair and G. Inguglia and H. Junkerkalefeld and R. Karl and Y. Kato and T. Keck and C. Kiesling and C. -H. Kim and S. Kohani and I. Komarov and T. M. G. Kraetzschmar and P. Križan and J. F. Krohn and T. Kuhr and J. Kumar and K. Kumara and S. Kurz and S. Lacaprara and C. La Licata and M. Laurenza and K. Lautenbach and S. C. Lee and K. Lieret and L. Li Gioi and Q. Y. Liu and S. Longo and M. Maggiora and E. Manoni and C. Marinas and A. Martini and F. Meier and M. Merola and F. Metzner and M. Milesi and K. Miyabayashi and G. B. Mohanty and F. Mueller and C. Murphy and E. R. Oxford and S. -H. Park and A. Passeri and F. Pham and L. E. Piilonen and S. Pokharel and M. T. Prim and C. Pulvermacher and P. Rados and M. Ritter and A. Rostomyan and S. Sandilya and L. Santelj and Y. Sato and A. J. Schwartz and M. E. Sevior and A. Soffer and S. Spataro and R. Stroili and W. Sutcliffe and D. Tagnani and M. Takizawa and U. Tamponi and F. Tenchini and E. Torassa and P. Urquijo and L. Vitale and Y. Yusa and L. Zani and Q. D. Zhou and R. Žlebčík and A. Zupanc},
journal= {arXiv preprint arXiv:2110.00790},
year = {2022}
}