Test of Lepton Universality and Measurement of the Form Factors of D^{0}→K^{*}(892)^{-}μ^{+}ν_{μ}.
作者信息
Ablikim M, Achasov M N, Adlarson P, Afedulidis O, Ai X C, Aliberti R, Amoroso A, An Q, Bai Y, Bakina O, Balossino I, Ban Y, Bao H-R, Batozskaya V, Begzsuren K, Berger N, Berlowski M, Bertani M, Bettoni D, Bianchi F, Bianco E, Bortone A, Boyko I, Briere R A, Brueggemann A, Cai H, Cai X, Calcaterra A, Cao G F, Cao N, Cetin S A, Chang J F, Che G R, Chelkov G, Chen C, Chen C H, Chen Chao, Chen G, Chen H S, Chen H Y, Chen M L, Chen S J, Chen S L, Chen S M, Chen T, Chen X R, Chen X T, Chen Y B, Chen Y Q, Chen Z J, Chen Z Y, Choi S K, Cibinetto G, Cossio F, Cui J J, Dai H L, Dai J P, Dbeyssi A, de Boer R E, Dedovich D, Deng C Q, Deng Z Y, Denig A, Denysenko I, Destefanis M, De Mori F, Ding B, Ding X X, Ding Y, Ding Y, Dong J, Dong L Y, Dong M Y, Dong X, Du M C, Du S X, Duan Y Y, Duan Z H, Egorov P, Fan Y H, Fang J, Fang J, Fang S S, Fang W X, Fang Y, Fang Y Q, Farinelli R, Fava L, Feldbauer F, Felici G, Feng C Q, Feng J H, Feng Y T, Fritsch M, Fu C D, Fu J L, Fu Y W, Gao H, Gao X B, Gao Y N, Gao Yang, Garbolino S, Garzia I, Ge L, Ge P T, Ge Z W, Geng C, Gersabeck E M, Gilman A, Goetzen K, Gong L, Gong W X, Gradl W, Gramigna S, Greco M, Gu M H, Gu Y T, Guan C Y, Guo A Q, Guo L B, Guo M J, Guo R P, Guo Y P, Guskov A, Gutierrez J, Han K L, Han T T, Hanisch F, Hao X Q, Harris F A, He K K, He K L, Heinsius F H, Heinz C H, Heng Y K, Herold C, Holtmann T, Hong P C, Hou G Y, Hou X T, Hou Y R, Hou Z L, Hu B Y, Hu H M, Hu J F, Hu S L, Hu T, Hu Y, Huang G S, Huang K X, Huang L Q, Huang X T, Huang Y P, Huang Y S, Hussain T, Hölzken F, Hüsken N, In der Wiesche N, Jackson J, Janchiv S, Jeong J H, Ji Q, Ji Q P, Ji W, Ji X B, Ji X L, Ji Y Y, Jia X Q, Jia Z K, Jiang D, Jiang H B, Jiang P C, Jiang S S, Jiang T J, Jiang X S, Jiang Y, Jiao J B, Jiao J K, Jiao Z, Jin S, Jin Y, Jing M Q, Jing X M, Johansson T, Kabana S, Kalantar-Nayestanaki N, Kang X L, Kang X S, Kavatsyuk M, Ke B C, Khachatryan V, Khoukaz A, Kiuchi R, Kolcu O B, Kopf B, Kuessner M, Kui X, Kumar N, Kupsc A, Kühn W, Lane J J, Larin P, Lavezzi L, Lei T T, Lei Z H, Lellmann M, Lenz T, Li C, Li C, Li C H, Li Cheng, Li D M, Li F, Li G, Li H B, Li H J, Li H N, Li Hui, Li J R, Li J S, Li K, Li L J, Li L K, Li Lei, Li M H, Li P R, Li Q M, Li Q X, Li R, Li S X, Li T, Li W D, Li W G, Li X, Li X H, Li X L, Li X Y, Li X Z, Li Y G, Li Z J, Li Z Y, Liang C, Liang H, Liang H, Liang Y F, Liang Y T, Liao G R, Liao L Z, Liao Y P, Libby J, Limphirat A, Lin C C, Lin D X, Lin T, Liu B J, Liu B X, Liu C, Liu C X, Liu F, Liu F H, Liu Feng, Liu G M, Liu H, Liu H B, Liu H H, Liu H M, Liu Huihui, Liu J B, Liu J Y, Liu K, Liu K Y, Liu Ke, Liu L, Liu L C, Liu Lu, Liu M H, Liu P L, Liu Q, Liu S B, Liu T, Liu W K, Liu W M, Liu X, Liu X, Liu Y, Liu Y, Liu Y B, Liu Z A, Liu Z D, Liu Z Q, Lou X C, Lu F X, Lu H J, Lu J G, Lu X L, Lu Y, Lu Y P, Lu Z H, Luo C L, Luo J R, Luo M X, Luo T, Luo X L, Lyu X R, Lyu Y F, Ma F C, Ma H, Ma H L, Ma J L, Ma L L, Ma M M, Ma Q M, Ma R Q, Ma T, Ma X T, Ma X Y, Ma Y, Ma Y M, Maas F E, Maggiora M, Malde S, Mao Y J, Mao Z P, Marcello S, Meng Z X, Messchendorp J G, Mezzadri G, Miao H, Min T J, Mitchell R E, Mo X H, Moses B, Muchnoi N Yu, Muskalla J, Nefedov Y, Nerling F, Nie L S, Nikolaev I B, Ning Z, Nisar S, Niu Q L, Niu W D, Niu Y, Olsen S L, Ouyang Q, Pacetti S, Pan X, Pan Y, Pathak A, Patteri P, Pei Y P, Pelizaeus M, Peng H P, Peng Y Y, Peters K, Ping J L, Ping R G, Plura S, Prasad V, Qi F Z, Qi H, Qi H R, Qi M, Qi T Y, Qian S, Qian W B, Qiao C F, Qiao X K, Qin J J, Qin L Q, Qin L Y, Qin X S, Qin Z H, Qiu J F, Qu Z H, Redmer C F, Ren K J, Rivetti A, Rolo M, Rong G, Rosner Ch, Ruan S N, Salone N, Sarantsev A, Schelhaas Y, Schoenning K, Scodeggio M, Shan K Y, Shan W, Shan X Y, Shang Z J, Shao L G, Shao M, Shen C P, Shen H F, Shen W H, Shen X Y, Shi B A, Shi H, Shi H C, Shi J L, Shi J Y, Shi Q Q, Shi S Y, Shi X, Song J J, Song T Z, Song W M, Song Y J, Song Y X, Sosio S, Spataro S, Stieler F, Su Y J, Sun G B, Sun G X, Sun H, Sun H K, Sun J F, Sun K, Sun L, Sun S S, Sun T, Sun W Y, Sun Y, Sun Y J, Sun Y Z, Sun Z Q, Sun Z T, Tang C J, Tang G Y, Tang J, Tang M, Tang Y A, Tao L Y, Tao Q T, Tat M, Teng J X, Thoren V, Tian W H, Tian Y, Tian Z F, Uman I, Wan Y, Wang S J, Wang B, Wang B L, Wang Bo, Wang D Y, Wang F, Wang H J, Wang J J, Wang J P, Wang K, Wang L L, Wang M, Wang N Y, Wang S, Wang S, Wang T, Wang T J, Wang W, Wang W, Wang W P, Wang X, Wang X F, Wang X J, Wang X L, Wang X N, Wang Y, Wang Y D, Wang Y F, Wang Y L, Wang Y N, Wang Y Q, Wang Yaqian, Wang Yi, Wang Z, Wang Z L, Wang Z Y, Wang Ziyi, Wei D H, Weidner F, Wen S P, Wen Y R, Wiedner U, Wilkinson G, Wolke M, Wollenberg L, Wu C, Wu J F, Wu L H, Wu L J, Wu X, Wu X H, Wu Y, Wu Y H, Wu Y J, Wu Z, Xia L, Xian X M, Xiang B H, Xiang T, Xiao D, Xiao G Y, Xiao S Y, Xiao Y L, Xiao Z J, Xie C, Xie X H, Xie Y, Xie Y G, Xie Y H, Xie Z P, Xing T Y, Xu C F, Xu C J, Xu G F, Xu H Y, Xu M, Xu Q J, Xu Q N, Xu W, Xu W L, Xu X P, Xu Y C, Xu Z P, Xu Z S, Yan F, Yan L, Yan W B, Yan W C, Yan X Q, Yang H J, Yang H L, Yang H X, Yang T, Yang Y, Yang Y F, Yang Y F, Yang Y X, Yang Z W, Yao Z P, Ye M, Ye M H, Yin J H, You Z Y, Yu B X, Yu C X, Yu G, Yu J S, Yu T, Yu X D, Yu Y C, Yuan C Z, Yuan J, Yuan J, Yuan L, Yuan S C, Yuan Y, Yuan Z Y, Yue C X, Zafar A A, Zeng F R, Zeng S H, Zeng X, Zeng Y, Zeng Y J, Zeng Y J, Zhai X Y, Zhai Y C, Zhan Y H, Zhang A Q, Zhang B L, Zhang B X, Zhang D H, Zhang G Y, Zhang H, Zhang H, Zhang H C, Zhang H H, Zhang H H, Zhang H Q, Zhang H R, Zhang H Y, Zhang J, Zhang J, Zhang J J, Zhang J L, Zhang J Q, Zhang J S, Zhang J W, Zhang J X, Zhang J Y, Zhang J Z, Zhang Jianyu, Zhang L M, Zhang Lei, Zhang P, Zhang Q Y, Zhang R Y, Zhang S H, Zhang Shulei, Zhang X D, Zhang X M, Zhang X Y, Zhang Y, Zhang Y, Zhang Y T, Zhang Y H, Zhang Y M, Zhang Yan, Zhang Z D, Zhang Z H, Zhang Z L, Zhang Z Y, Zhang Z Y, Zhang Z Z, Zhao G, Zhao J Y, Zhao J Z, Zhao L, Zhao Lei, Zhao M G, Zhao N, Zhao R P, Zhao S J, Zhao Y B, Zhao Y X, Zhao Z G, Zhemchugov A, Zheng B, Zheng B M, Zheng J P, Zheng W J, Zheng Y H, Zhong B, Zhong X, Zhou H, Zhou J Y, Zhou L P, Zhou S, Zhou X, Zhou X K, Zhou X R, Zhou X Y, Zhou Y Z, Zhu J, Zhu K, Zhu K J, Zhu K S, Zhu L, Zhu L X, Zhu S H, Zhu S Q, Zhu T J, Zhu W D, Zhu Y C, Zhu Z A, Zou J H, Zu J
机构信息
Institute of High Energy Physics, Beijing 100049, People's Republic of China.
Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.
出版信息
Phys Rev Lett. 2025 Jan 10;134(1):011803. doi: 10.1103/PhysRevLett.134.011803.
One of the main goals of studying semileptonic decays in flavor physics is to gain a better understanding of hadronic transitions in the nonperturbative region of Quantum Chromodynamics. This involves measuring Cabibbo-Kobayashi-Maskawa matrix elements, understanding form factors, and comparing them with theoretical predictions. We report a first study of the semileptonic decay D^{0}→K^{-}π^{0}μ^{+}ν_{μ} by analyzing an e^{+}e^{-} annihilation data sample of 7.93 fb^{-1} collected at the center-of-mass energy of 3.773 GeV with the BESIII detector. The absolute branching fraction of D^{0}→K^{-}π^{0}μ^{+}ν_{μ} is measured for the first time, providing necessary input for extracting the c→s Cabibbo-Kobayashi-Maskawa matrix element through this process. This measurement allows us to test lepton flavor universality, with no indication of violation found. Furthermore, a series of hadronic form factors have been determined and compared with theoretical predictions, which will impose stricter constraints on theoretical models.
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