Ablikim M, Achasov M N, Adlarson P, Albrecht M, Aliberti R, Amoroso A, An M R, An Q, Bai X H, Bai Y, Bakina O, Ferroli R Baldini, Balossino I, Ban Y, Batozskaya V, Becker D, Begzsuren K, Berger N, Bertani M, Bettoni D, Bianchi F, Bloms J, 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, Chang W L, Chelkov G, Chen C, Chen G, Chen H S, Chen M L, Chen S J, Chen T, Chen X R, Chen X T, Chen Y B, Chen Z J, Cheng W S, Cibinetto G, Cossio F, Cui J J, Dai H L, Dai J P, Dbeyssi A, de Boer R E, Dedovich D, Deng Z Y, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong J, Dong L Y, Dong M Y, Dong X, Du S X, Egorov P, Fan Y L, Fang J, Fang S S, Fang Y, Farinelli R, Fava L, Feldbauer F, Felici G, Feng C Q, Feng J H, Fischer K, Fritsch M, Fritzsch C, Fu C D, Gao H, Gao Y N, Gao Yang, Garbolino S, Garzia I, Ge P T, Ge Z W, Geng C, Gersabeck E M, Gilman A, Gong L, Gong W X, Gradl W, Greco M, Gu L M, Gu M H, Gu Y T, Guan C Y, Guo A Q, Guo L B, Guo R P, Guo Y P, Guskov A, Han T T, Han W Y, 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, Hou G Y, Hou Y R, Hou Z L, Hu H M, Hu J F, Hu T, Hu Y, Huang G S, Huang K X, Huang L Q, Huang L Q, Huang X T, Huang Y P, Huang Z, Hussain T, Hüsken N, Imoehl W, Irshad M, Jackson J, Jaeger S, Janchiv S, Ji Q, Ji Q P, Ji X B, Ji X L, Ji Y Y, Jia Z K, Jiang H B, Jiang S S, Jiang X S, Jiang Y, Jiao J B, Jiao Z, Jin S, Jin Y, Jing M Q, Johansson T, Kalantar-Nayestanaki N, Kang X S, Kappert R, Kavatsyuk M, Ke B C, Keshk I K, Khoukaz A, Kiese P, Kiuchi R, Koch L, Kolcu O B, Kopf B, Kuemmel M, Kuessner M, Kupsc A, Kühn W, Lane J J, Lange J S, Larin P, Lavania A, Lavezzi L, Lei Z H, Leithoff H, Lellmann M, Lenz T, Li C, Li C, Li C H, Li Cheng, Li D M, Li F, Li G, Li H, Li H, Li H B, Li H J, Li H N, Li J Q, Li J S, Li J W, Li Ke, Li L J, Li L K, Li Lei, Li M H, Li P R, Li S X, Li S Y, Li T, Li W D, Li W G, Li X H, Li X L, Li Xiaoyu, Liang H, Liang H, Liang H, Liang Y F, Liang Y T, Liao G R, Liao L Z, Libby J, Limphirat A, Lin C X, Lin D X, Lin T, Liu B J, Liu C X, Liu D, Liu F H, Liu Fang, Liu Feng, Liu G M, Liu H, Liu H B, Liu H M, Liu Huanhuan, Liu Huihui, Liu J B, Liu J L, Liu J Y, Liu K, Liu K Y, Liu Ke, Liu L, Liu M H, Liu P L, Liu Q, Liu S B, Liu T, Liu W K, Liu W M, Liu X, Liu Y, Liu Y B, Liu Z A, 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 M X, Luo T, Luo X L, Lyu X R, Lyu Y F, Ma F C, Ma H L, Ma L L, Ma M M, Ma Q M, Ma R Q, Ma R T, Ma X Y, Ma Y, Maas F E, Maggiora M, Maldaner S, Malde S, Malik Q A, Mangoni A, 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, Muchnoi N Yu, Muramatsu H, Nefedov Y, Nerling F, Nikolaev I B, Ning Z, Nisar S, Niu Y, Olsen S L, Ouyang Q, Pacetti S, Pan X, Pan Y, Pathak A, Pathak A, Pelizaeus M, Peng H P, Pettersson J, Ping J L, Ping R G, Plura S, Pogodin S, Poling R, Prasad V, Qi H, Qi H R, Qi M, Qi T Y, Qian S, Qian W B, Qian Z, Qiao C F, Qin J J, Qin L Q, Qin X P, Qin X S, Qin Z H, Qiu J F, Qu S Q, Qu S Q, Rashid K H, Redmer C F, Ren K J, Rivetti A, Rodin V, Rolo M, Rong G, Rosner Ch, Ruan S N, Sang H S, Sarantsev A, Schelhaas Y, Schnier C, Schoenning K, Scodeggio M, Shan K Y, Shan W, Shan X Y, Shangguan J F, Shao L G, Shao M, Shen C P, Shen H F, Shen X Y, Shi B-A, Shi H C, Shi R S, Shi X, Shi X D, Song J J, Song W M, Song Y X, Sosio S, Spataro S, Stieler F, Su K X, Su P P, Su Y-J, Sun G X, Sun H, Sun H K, Sun J F, Sun L, Sun S S, Sun T, Sun W Y, Sun X, Sun Y J, Sun Y Z, Sun Z T, Tan Y H, Tan Y X, Tang C J, Tang G Y, Tang J, Tao L Y, Tao Q T, Teng J X, Thoren V, Tian W H, Tian Y, Uman I, Wang B, Wang B L, Wang C W, Wang D Y, Wang F, Wang H J, Wang H P, Wang K, Wang L L, Wang M, Wang M Z, Wang Meng, Wang S, Wang T, Wang T J, Wang W, Wang W H, Wang W P, Wang X, Wang X F, Wang X L, Wang Y D, Wang Y F, Wang Y H, Wang Y Q, Wang Z, Wang Z Y, Wang Ziyi, Wei D H, Weidner F, Wen S P, White D J, Wiedner U, Wilkinson G, Wolke M, Wollenberg L, Wu J F, Wu L H, Wu L J, Wu X, Wu X H, Wu Y, Wu Z, Xia L, Xiang T, Xiao D, Xiao G Y, Xiao H, 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 Q J, Xu S Y, Xu X P, Xu Y C, Xu Z P, Yan F, Yan L, Yan W B, Yan W C, Yang H J, Yang H L, Yang H X, Yang L, Yang S L, Yang Y X, Yang Yifan, Ye M, Ye M H, Yin J H, You Z Y, Yu B X, Yu C X, Yu G, Yu T, Yuan C Z, Yuan L, Yuan S C, Yuan X Q, Yuan Y, Yuan Z Y, Yue C X, Zafar A A, Zeng F R, Zeng X, Zeng Y, Zhan Y H, Zhang A Q, Zhang B L, Zhang B X, Zhang G Y, Zhang H, Zhang H H, Zhang H H, Zhang H Y, Zhang J L, Zhang J Q, Zhang J W, Zhang J X, Zhang J Y, Zhang J Z, Zhang Jianyu, Zhang Jiawei, Zhang L M, Zhang L Q, Zhang Lei, Zhang P, Zhang Q Y, Zhang Shulei, Zhang X D, Zhang X M, Zhang X Y, Zhang X Y, Zhang Y, Zhang Y T, Zhang Y H, Zhang Yan, Zhang Yao, Zhang Z H, Zhang Z Y, Zhang Z Y, Zhao G, Zhao J, Zhao J Y, Zhao J Z, Zhao Lei, Zhao Ling, Zhao M G, Zhao Q, Zhao S J, Zhao Y B, Zhao Y X, Zhao Z G, Zhemchugov A, Zheng B, Zheng J P, Zheng Y H, Zhong B, Zhong C, Zhong X, Zhou H, Zhou L P, Zhou X, Zhou X K, Zhou X R, Zhou X Y, Zhou Y Z, Zhu J, Zhu K, Zhu K J, Zhu L X, Zhu S H, Zhu S Q, Zhu T J, Zhu W J, Zhu Y C, Zhu Z A, Zou B S, Zou J H
Institute of High Energy Physics, Beijing 100049, People's Republic of China.
G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.
Phys Rev Lett. 2022 Oct 28;129(18):182001. doi: 10.1103/PhysRevLett.129.182001.
Using e^{+}e^{-} annihilation data corresponding to an integrated luminosity of 6.32 fb^{-1} collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform the first amplitude analysis of the decay D_{s}^{+}→K_{S}^{0}K^{+}π^{0} and determine the relative branching fractions and phases for intermediate processes. We observe an a_{0}-like state with mass of 1.817 GeV in its decay to K_{S}^{0}K^{+} for the first time. In addition, we measure the ratio {B[D_{s}^{+}→K[over ¯]^{}(892)^{0}K^{+}]/B[D_{s}^{+}→K[over ¯]^{0}K^{}(892)^{+}]} to be 2.35_{-0.23stat}^{+0.42}±0.10_{syst}. Finally, we provide a precision measurement of the absolute branching fraction B(D_{s}^{+}→K_{S}^{0}K^{+}π^{0})=(1.46±0.06_{stat}±0.05_{syst})%.
利用北京谱仪III（BESIII）探测器在质心能量4.178至4.226 GeV之间收集的积分亮度为6.32 fb⁻¹的正负电子湮灭数据，我们首次对衰变Dₛ⁺→Kₛ⁰K⁺π⁰进行了幅度分析，并确定了中间过程的相对分支比和相位。我们首次在其衰变到Kₛ⁰K⁺过程中观测到一个质量为1.817 GeV的类a₀态。此外，我们测量的比值{B[Dₛ⁺→K⁻(892)⁰K⁺]/B[Dₛ⁺→K⁰K(892)⁺]}为2.35₋₀.₂₃stat⁺₀.₄₂±0.10syst。最后，我们给出了绝对分支比B(Dₛ⁺→Kₛ⁰K⁺π⁰) = (1.46±0.06stat±0.05syst)%的精确测量结果。
