在 $B^0 \to D^{*-} \ell \nu$ 衰变角不对称性中对轻子普适性的检验
高能物理 - 实验
2023-11-03 v3
摘要
我们提出了在半轻子 介子衰变到带电自旋-1 粲介子的角分布中轻子普适性的首次全面检验。我们测量了五个角不对称可观测量作为衰变反冲的函数，它们对轻子普适性破坏贡献敏感。我们使用在 衰变中一个中性 被完全重建的事例，数据对应于 Belle II 探测器收集的电子-正电子对撞中 的积分亮度。我们发现与标准模型预期无显著偏离。
引用
@article{arxiv.2308.02023,
title = {Tests of light-lepton universality in angular asymmetries of $B^0 \to D^{*-} \ell \nu$ decays},
author = {Belle II Collaboration and I. Adachi and K. Adamczyk and L. Aggarwal and H. Aihara and N. Akopov and A. Aloisio and N. Anh Ky and D. M. Asner and H. Atmacan and T. Aushev and V. Aushev and M. Aversano and V. Babu and H. Bae and S. Bahinipati and P. Bambade and Sw. Banerjee and M. Barrett and J. Baudot and M. Bauer and A. Baur and A. Beaubien and F. Becherer and J. Becker and P. K. Behera and J. V. Bennett and F. U. Bernlochner and V. Bertacchi and M. Bertemes and E. Bertholet and M. Bessner and S. Bettarini and B. Bhuyan and F. Bianchi and T. Bilka and D. Biswas and A. Bobrov and D. Bodrov and A. Bolz and A. Bondar and J. Borah and A. Bozek and M. Bračko and P. Branchini and R. A. Briere and T. E. Browder and A. Budano and S. Bussino and M. Campajola and L. Cao and G. Casarosa and C. Cecchi and J. Cerasoli and M. -C. Chang and P. Chang and R. Cheaib and P. Cheema and V. Chekelian and B. G. Cheon and K. Chilikin and K. Chirapatpimol and H. -E. Cho and K. Cho and S. -K. Choi and S. Choudhury and J. Cochran and L. Corona and L. M. Cremaldi and S. Das and F. Dattola and E. De La Cruz-Burelo and S. A. De La Motte and G. De Nardo and M. De Nuccio and G. De Pietro and R. de Sangro and M. Destefanis and S. Dey and R. Dhamija and A. Di Canto and F. Di Capua and J. Dingfelder and Z. Doležal and I. Domínguez Jiménez and T. V. Dong and M. Dorigo and K. Dort and D. Dossett and S. Dreyer and S. Dubey and G. Dujany and P. Ecker and M. Eliachevitch and D. Epifanov and P. Feichtinger and T. Ferber and D. Ferlewicz and T. Fillinger and C. Finck and G. Finocchiaro and A. Fodor and F. Forti and A. Frey and B. G. Fulsom and A. Gabrielli and E. Ganiev and M. Garcia-Hernandez and R. Garg and A. Garmash and G. Gaudino and V. Gaur and A. Gaz and A. Gellrich and G. Ghevondyan and D. Ghosh and H. Ghumaryan and G. Giakoustidis and R. Giordano and A. Giri and B. Gobbo and R. Godang and O. Gogota and P. Goldenzweig and W. Gradl and S. Granderath and E. Graziani and D. Greenwald and Z. Gruberová and T. Gu and Y. Guan and K. Gudkova and S. Halder and Y. Han and T. Hara and K. Hayasaka and H. Hayashii and S. Hazra and C. Hearty and M. T. Hedges and A. Heidelbach and I. Heredia de la Cruz and M. Hernández Villanueva and A. Hershenhorn and T. Higuchi and E. C. Hill and M. Hoek and M. Hohmann and P. Horak and C. -L. Hsu and T. Iijima and K. Inami and G. Inguglia and N. Ipsita and A. Ishikawa and S. Ito and R. Itoh and M. Iwasaki and P. Jackson and W. W. Jacobs and E. -J. Jang and Q. P. Ji and S. Jia and Y. Jin and A. Johnson and H. Junkerkalefeld and A. B. Kaliyar and J. Kandra and K. H. Kang and G. Karyan and T. Kawasaki and F. Keil and C. Ketter and C. Kiesling and C. -H. Kim and D. Y. Kim and K. -H. Kim and Y. -K. Kim and H. Kindo and K. Kinoshita and P. Kodyš and T. Koga and S. Kohani and K. Kojima and T. Konno and A. Korobov and S. Korpar and E. Kovalenko and R. Kowalewski and T. M. G. Kraetzschmar and P. Križan and P. Krokovny and T. Kuhr and J. Kumar and M. Kumar and K. Kumara and T. Kunigo and A. Kuzmin and Y. -J. Kwon and S. Lacaprara and Y. -T. Lai and T. Lam and L. Lanceri and J. S. Lange and M. Laurenza and R. Leboucher and F. R. Le Diberder and P. Leitl and D. Levit and P. M. Lewis and C. Li and L. K. Li and Y. Li and J. Libby and Q. Y. Liu and Z. Q. Liu and D. Liventsev and S. Longo and T. Lueck and T. Luo and C. Lyu and Y. Ma and M. Maggiora and S. P. Maharana and R. Maiti and S. Maity and G. Mancinelli and R. Manfredi and E. Manoni and A. C. Manthei and M. Mantovano and D. Marcantonio and S. Marcello and C. Marinas and L. Martel and C. Martellini and A. Martini and T. Martinov and L. Massaccesi and M. Masuda and T. Matsuda and D. Matvienko and S. K. Maurya and J. A. McKenna and R. Mehta and F. Meier and M. Merola and F. Metzner and M. Milesi and C. Miller and M. Mirra and K. Miyabayashi and G. B. Mohanty and N. Molina-Gonzalez and S. Mondal and S. Moneta and H. -G. Moser and M. Mrvar and R. Mussa and I. Nakamura and Y. Nakazawa and A. Narimani Charan and M. Naruki and Z. Natkaniec and A. Natochii and L. Nayak and G. Nazaryan and N. K. Nisar and S. Nishida and S. Ogawa and H. Ono and P. Oskin and F. Otani and P. Pakhlov and G. Pakhlova and A. Paladino and A. Panta and E. Paoloni and S. Pardi and K. Parham and S. -H. Park and B. Paschen and A. Passeri and S. Patra and S. Paul and T. K. Pedlar and I. Peruzzi and R. Peschke and R. Pestotnik and F. Pham and M. Piccolo and L. E. Piilonen and P. L. M. Podesta-Lerma and T. Podobnik and S. Pokharel and C. Praz and S. Prell and E. Prencipe and M. T. Prim and H. Purwar and N. Rad and P. Rados and G. Raeuber and S. Raiz and M. Reif and S. Reiter and M. Remnev and I. Ripp-Baudot and G. Rizzo and S. H. Robertson and M. Roehrken and J. M. Roney and A. Rostomyan and N. Rout and G. Russo and D. Sahoo and S. Sandilya and A. Sangal and L. Santelj and Y. Sato and V. Savinov and B. Scavino and C. Schmitt and M. Schnepf and C. Schwanda and Y. Seino and A. Selce and K. Senyo and J. Serrano and M. E. Sevior and C. Sfienti and W. Shan and C. Sharma and C. P. Shen and X. D. Shi and T. Shillington and J. -G. Shiu and D. Shtol and B. Shwartz and A. Sibidanov and F. Simon and J. B. Singh and J. Skorupa and R. J. Sobie and M. Sobotzik and A. Soffer and A. Sokolov and E. Solovieva and S. Spataro and B. Spruck and M. Starič and P. Stavroulakis and S. Stefkova and Z. S. Stottler and R. Stroili and J. Strube and M. Sumihama and K. Sumisawa and W. Sutcliffe and H. Svidras and M. Takahashi and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and A. Thaller and O. Tittel and R. Tiwary and D. Tonelli and E. Torassa and N. Toutounji and K. Trabelsi and I. Tsaklidis and M. Uchida and I. Ueda and Y. Uematsu and T. Uglov and K. Unger and Y. Unno and K. Uno and S. Uno and P. Urquijo and Y. Ushiroda and S. E. Vahsen and R. van Tonder and G. S. Varner and K. E. Varvell and M. Veronesi and V. S. Vismaya and L. Vitale and V. Vobbilisetti and R. Volpe and B. Wach and E. Waheed and M. Wakai and S. Wallner and E. Wang and M. -Z. Wang and Z. Wang and A. Warburton and M. Watanabe and S. Watanuki and M. Welsch and C. Wessel and X. P. Xu and B. D. Yabsley and S. Yamada and W. Yan and S. B. Yang and J. H. Yin and K. Yoshihara and C. Z. Yuan and L. Zani and Y. Zhang and V. Zhilich and J. S. Zhou and Q. D. Zhou and V. I. Zhukova and R. Žlebčík},
journal= {arXiv preprint arXiv:2308.02023},
year = {2023}
}