Study of the f_{0}(980) and f_{0}(500) Scalar Mesons through the Decay D_{s}^{+}→π^{+}π^{-}e^{+}ν_{e}. M Ablikim , M N Achasov , P Adlarson , R Aliberti , A Amoroso , M R An , Q An , Y Bai , O Bakina , I Balossino , Y Ban , V Batozskaya , K Begzsuren , N Berger , M Berlowski , M Bertani , D Bettoni , F Bianchi , E Bianco , J Bloms , A Bortone , I Boyko , R A Briere , A Brueggemann , H Cai , X Cai , A Calcaterra , G F Cao , N Cao , S A Cetin , J F Chang , T T Chang , W L Chang , G R Che , G Chelkov , C Chen , Chao Chen , G Chen , H S Chen , M L Chen , S J Chen , S M Chen , T Chen , X R Chen , X T Chen , Y B Chen , Y Q Chen , Z J Chen , W S Cheng , S K Choi , X Chu , G Cibinetto , S C Coen , F Cossio , J J Cui , H L Dai , J P Dai , A Dbeyssi , R E de Boer , D Dedovich , Z Y Deng , A Denig , I Denysenko , M Destefanis , F De Mori , B Ding , X X Ding , Y Ding , Y Ding , J Dong , L Y Dong , M Y Dong , X Dong , S X Du , Z H Duan , P Egorov , Y L Fan , J Fang , S S Fang , W X Fang , Y Fang , R Farinelli , L Fava , F Feldbauer , G Felici , C Q Feng , J H Feng , K Fischer , M Fritsch , C Fritzsch , C D Fu , J L Fu , Y W Fu , H Gao , Y N Gao , Yang Gao , S Garbolino , I Garzia , P T Ge , Z W Ge , C Geng , E M Gersabeck , A Gilman , K Goetzen , L Gong , W X Gong , W Gradl , S Gramigna , M Greco , M H Gu , Y T Gu , C Y Guan , Z L Guan , A Q Guo , L B Guo , R P Guo , Y P Guo , A Guskov , X T Hou , T T Han , W Y Han , X Q Hao , F A Harris , K K He , K L He , F H Heinsius , C H Heinz , Y K Heng , C Herold , T Holtmann , P C Hong , G Y Hou , Y R Hou , Z L Hou , H M Hu , J F Hu , T Hu , Y Hu , G S Huang , K X Huang , L Q Huang , X T Huang , Y P Huang , T Hussain , N Hüsken , W Imoehl , M Irshad , J Jackson , S Jaeger , S Janchiv , J H Jeong , Q Ji , Q P Ji , X B Ji , X L Ji , Y Y Ji , Z K Jia , P C Jiang , S S Jiang , T J Jiang , X S Jiang , Y Jiang , J B Jiao , Z Jiao , S Jin , Y Jin , M Q Jing , T Johansson , X Kui , S Kabana , N Kalantar-Nayestanaki , X L Kang , X S Kang , R Kappert , M Kavatsyuk , B C Ke , A Khoukaz , R Kiuchi , R Kliemt , L Koch , O B Kolcu , B Kopf , M K Kuessner , A Kupsc , W Kühn , J J Lane , J S Lange , P Larin , A Lavania , L Lavezzi , T T Lei , Z H Lei , H Leithoff , M Lellmann , T Lenz , C Li , C Li , C H Li , Cheng Li , D M Li , F Li , G Li , H Li , H B Li , H J Li , H N Li , Hui Li , J R 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 , T Li , W D Li , W G Li , X H Li , X L Li , Xiaoyu Li , Y G Li , Z J Li , Z X Li , Z Y Li , C Liang , H Liang , H Liang , H Liang , Y F Liang , Y T Liang , G R Liao , L Z Liao , J Libby , A Limphirat , D X Lin , T Lin , B J Liu , B X Liu , C 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 , 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 , Y Liu , Y B Liu , Z A Liu , Z Q Liu , X C Lou , F X Lu , H J Lu , J G Lu , X L Lu , Y Lu , Y P Lu , Z H Lu , C L Luo , M X Luo , T Luo , X L Luo , X R Lyu , Y F Lyu , F C Ma , H L Ma , J L Ma , L L Ma , M M Ma , Q M Ma , R Q Ma , R T Ma , X Y Ma , Y Ma , Y M Ma , F E Maas , M Maggiora , S Maldaner , S Malde , A Mangoni , Y J Mao , Z P Mao , S Marcello , Z X Meng , J G Messchendorp , G Mezzadri , H Miao , T J Min , R E Mitchell , X H Mo , N Yu Muchnoi , Y Nefedov , F Nerling , I B Nikolaev , Z Ning , S Nisar , Y Niu , S L Olsen , Q Ouyang , S Pacetti , X Pan , Y Pan , A Pathak , P Patteri , Y P Pei , M Pelizaeus , H P Peng , K Peters , J L Ping , R G Ping , S Plura , S Pogodin , V Prasad , F Z Qi , H Qi , H R Qi , M Qi , T Y Qi , S Qian , W B Qian , C F Qiao , J J Qin , L Q Qin , X P Qin , X S Qin , Z H Qin , J F Qiu , S Q Qu , C F Redmer , K J Ren , A Rivetti , V Rodin , M Rolo , G Rong , Ch Rosner , S N Ruan , N Salone , A Sarantsev , Y Schelhaas , K Schoenning , M Scodeggio , K Y Shan , W Shan , X Y Shan , J F Shangguan , L G Shao , M Shao , C P Shen , H F Shen , W H Shen , X Y Shen , B A Shi , H C Shi , J L Shi , J Y Shi , Q Q Shi , R S Shi , X Shi , J J Song , T Z Song , W M Song , Y J Song , Y X Song , S Sosio , S Spataro , F Stieler , Y J Su , 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 T Sun , Y X Tan , C J Tang , G Y Tang , J Tang , Y A Tang , L Y Tao , Q T Tao , M Tat , J X Teng , V Thoren , W H Tian , W H Tian , Y Tian , Z F Tian , I Uman , B Wang , B L Wang , Bo Wang , C W Wang , D Y Wang , F Wang , H J Wang , H P Wang , K Wang , L L Wang , M Wang , Meng Wang , S Wang , S Wang , T Wang , T J Wang , W Wang , W Wang , W H Wang , W P Wang , X Wang , X F Wang , X J Wang , X L Wang , Y Wang , Y D Wang , Y F Wang , Y H Wang , Y N Wang , Y Q Wang , Yaqian Wang , Yi Wang , Z Wang , Z L Wang , Z Y Wang , Ziyi Wang , D Wei , D H Wei , F Weidner , S P Wen , C W Wenzel , U W Wiedner , G Wilkinson , M Wolke , L Wollenberg , C Wu , J F Wu , L H Wu , L J Wu , X Wu , X H Wu , Y Wu , Y J Wu , Z Wu , L Xia , X M Xian , T Xiang , D Xiao , G Y Xiao , H Xiao , S Y Xiao , Y L Xiao , Z J Xiao , C Xie , X H Xie , Y Xie , Y G Xie , Y H Xie , Z P Xie , T Y Xing , C F Xu , C J Xu , G F Xu , H Y Xu , Q J Xu , Q N Xu , W Xu , W L Xu , X P Xu , Y C Xu , Z P Xu , Z S Xu , F Yan , L Yan , W B Yan , W C Yan , X Q Yan , H J Yang , H L Yang , H X Yang , Tao Yang , Y Yang , Y F Yang , Y X Yang , Yifan Yang , Z W Yang , M Ye , M H Ye , J H Yin , Z Y You , B X Yu , C X Yu , G Yu , J S Yu , T Yu , X D Yu , C Z Yuan , L Yuan , S C Yuan , X Q Yuan , Y Yuan , Z Y Yuan , C X Yue , A A Zafar , F R Zeng , X Zeng , Y Zeng , Y J Zeng , X Y Zhai , Y H Zhan , A Q Zhang , B L Zhang , B X Zhang , D H Zhang , G Y Zhang , H Zhang , H H Zhang , H H Zhang , H Q Zhang , H Y Zhang , J J 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 , Shuihan Zhang , Shulei Zhang , X D Zhang , X M Zhang , X Y Zhang , X Y Zhang , Y Zhang , Y Zhang , Y T Zhang , Y H Zhang , Yan Zhang , Yao Zhang , Z H Zhang , Z L Zhang , Z Y Zhang , Z Y Zhang , G Zhao , J Zhao , J Y Zhao , J Z Zhao , Lei Zhao , Ling Zhao , M G Zhao , S J Zhao , Y B Zhao , Y X Zhao , Z G Zhao , A Zhemchugov , B Zheng , J P Zheng , W J Zheng , Y H Zheng , B Zhong , X Zhong , H Zhou , L P Zhou , X Zhou , X K Zhou , X R Zhou , X Y Zhou , Y Z Zhou , J Zhu , K Zhu , K J Zhu , L Zhu , L X Zhu , S H Zhu , S Q Zhu , T J Zhu , W J Zhu , Y C Zhu , Z A Zhu , J H Zou , J Zu , BESIII Collaboration Physical review letters(2024)
摘要
Using e^{+}e^{-} collision data corresponding to an integrated luminosity of 7.33 fb^{-1} recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we present an analysis of the decay D_{s}^{+}→π^{+}π^{-}e^{+}ν_{e}, where the D_{s}^{+} is produced via the process e^{+}e^{-}→D_{s}^{*±}D_{s}^{∓}. We observe the f_{0}(980) in the π^{+}π^{-} system and the branching fraction of the decay D_{s}^{+}→f_{0}(980)e^{+}ν_{e} with f_{0}(980)→π^{+}π^{-} measured to be (1.72±0.13_{stat}±0.10_{syst})×10^{-3}, where the uncertainties are statistical and systematic, respectively. The dynamics of the D_{s}^{+}→f_{0}(980)e^{+}ν_{e} decay are studied with the simple pole parametrization of the hadronic form factor and the Flatté formula describing the f_{0}(980) in the differential decay rate, and the product of the form factor f_{+}^{f_{0}}(0) and the c→s Cabibbo-Kobayashi-Maskawa matrix element |V_{cs}| is determined for the first time to be f_{+}^{f_{0}}(0)|V_{cs}|=0.504±0.017_{stat}±0.035_{syst}. Furthermore, the decay D_{s}^{+}→f_{0}(500)e^{+}ν_{e} is searched for the first time but no signal is found. The upper limit on the branching fraction of D_{s}^{+}→f_{0}(500)e^{+}ν_{e}, f_{0}(500)→π^{+}π^{-} decay is set to be 3.3×10^{-4} at 90% confidence level.
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