| Literature DB >> 30848637 |
M Ablikim1, M N Achasov2, S Ahmed3, M Albrecht4, M Alekseev5,6, A Amoroso5,6, F F An1, Q An7,8, Y Bai9, O Bakina10, R Baldini Ferroli11, Y Ban12, K Begzsuren13, D W Bennett14, J V Bennett15, N Berger16, M Bertani11, D Bettoni17, F Bianchi5,6, I Boyko10, R A Briere15, H Cai18, X Cai1,7, O Cakir19, A Calcaterra11, G F Cao1,20, S A Cetin21, J Chai6, J F Chang1,7, W L Chang1,20, G Chelkov10, G Chen1, H S Chen1,20, J C Chen1, M L Chen1,7, P L Chen22, S J Chen23, Y B Chen1,7, G Cibinetto17, F Cossio6, H L Dai1,7, J P Dai24, A Dbeyssi3, D Dedovich10, Z Y Deng1, A Denig16, I Denysenko10, M Destefanis5,6, F De Mori5,6, Y Ding25, C Dong26, J Dong1,7, L Y Dong1,20, M Y Dong1,7,20, Z L Dou23, S X Du27, P F Duan1, J Z Fan28, J Fang1,7, S S Fang1,20, Y Fang1, R Farinelli17,29, L Fava30,6, S Fegan16, F Feldbauer4, G Felici11, C Q Feng7,8, M Fritsch4, C D Fu1, Y Fu1, Q Gao1, X L Gao7,8, Y Gao28, Y G Gao31, Z Gao7,8, B Garillon16, I Garzia17, A Gilman32, K Goetzen33, L Gong26, W X Gong1,7, W Gradl16, M Greco5,6, L M Gu23, M H Gu1,7, Y T Gu34, A Q Guo1, L B Guo35, R P Guo36, Y P Guo16, A Guskov10, Z Haddadi37, S Han18, X Q Hao38, F A Harris39, K L He1,20, F H Heinsius4, T Held4, Y K Heng1,7,20, T Holtmann4, Z L Hou1, H M Hu1,20, J F Hu24, T Hu1,7,20, Y Hu1, G S Huang7,8, J S Huang38, X T Huang40, X Z Huang23, Z L Huang25, T Hussain41, W Ikegami Andersson42, M Irshad7,8, Q Ji1, Q P Ji38, X B Ji1,20, X L Ji1,7, X S Jiang1,7,20, X Y Jiang26, J B Jiao40, Z Jiao43, D P Jin1,7,20, S Jin23, Y Jin44, T Johansson42, A Julin32, N Kalantar-Nayestanaki37, X S Kang26, M Kavatsyuk37, B C Ke1, T Khan7,8, A Khoukaz45, P Kiese16, R Kliemt33, L Koch46, O B Kolcu21, B Kopf4, M Kornicer39, M Kuemmel4, M Kuessner4, A Kupsc42, M Kurth1, W Kühn46, J S Lange46, M Lara14, P Larin3, L Lavezzi6, S Leiber4, H Leithoff16, C Li42, Cheng Li7,8, D M Li27, F Li1,7, F Y Li12, G Li1, H B Li1,20, H J Li1,20, J C Li1, J W Li47, Ke Li1, Lei Li48, P L Li7,8, P R Li49,20, Q Y Li40, T Li40, W D Li1,20, W G Li1, X L Li40, X N Li1,7, X Q Li26, Z B Li50, H Liang7,8, Y F Liang51, Y T Liang46, G R Liao52, L Z Liao1,20, J Libby53, C X Lin50, D X Lin3, B Liu24, B J Liu1, C X Liu1, D Liu7,8, D Y Liu24, F H Liu54, Fang Liu1, Feng Liu31, H B Liu34, H L Liu9, H M Liu1,20, Huanhuan Liu1, Huihui Liu55, J B Liu7,8, J Y Liu1,20, K Liu28, K Y Liu25, Ke Liu31, Q Liu20, S B Liu7,8, X Liu56, Y B Liu26, Z A Liu1,7,20, Zhiqing Liu16, Y F Long12, X C Lou1,7,20, H J Lu43, J D Lu1,20, J G Lu1,7, Y Lu1, Y P Lu1,7, C L Luo35, M X Luo57, X L Luo1,7, S Lusso6, X R Lyu20, F C Ma25, H L Ma1, L L Ma40, M M Ma1,20, Q M Ma1, X N Ma26, X X Ma1,20, X Y Ma1,7, Y M Ma40, F E Maas3, M Maggiora5,6, Q A Malik41, A Mangoni58, Y J Mao12, Z P Mao1, S Marcello5,6, Z X Meng44, J G Messchendorp37, G Mezzadri17, J Min1,7, T J Min23, R E Mitchell14, X H Mo1,7,20, Y J Mo31, C Morales Morales3, G Morello11, N Yu Muchnoi2, H Muramatsu32, A Mustafa4, S Nakhoul33, Y Nefedov10, F Nerling33, I B Nikolaev2, Z Ning1,7, S Nisar59, S L Niu1,7, S L Olsen60, Q Ouyang1,7,20, S Pacetti58, Y Pan7,8, M Papenbrock42, P Patteri11, M Pelizaeus4, J Pellegrino5,6, H P Peng7,8, K Peters33, J Pettersson42, J L Ping35, R G Ping1,20, A Pitka4, R Poling32, V Prasad7,8, H R Qi61, M Qi23, T Y Qi61, S Qian1,7, C F Qiao20, N Qin18, X S Qin4, Z H Qin1,7, J F Qiu1, K H Rashid41, C F Redmer16, M Richter4, M Ripka16, M Rolo6, G Rong1,20, Ch Rosner3, A Sarantsev10, M Savrié29, C Schnier4, K Schoenning42, W Shan62, X Y Shan7,8, M Shao7,8, C P Shen61, P X Shen26, X Y Shen1,20, H Y Sheng1, X Shi1,7, J J Song40, W M Song40, X Y Song1, S Sosio5,6, C Sowa4, S Spataro5,6, G X Sun1, J F Sun38, L Sun18, S S Sun1,20, X H Sun1, Y J Sun7,8, Y K Sun7,8, Y Z Sun1, Z J Sun1,7, Z T Sun14, Y T Tan7,8, C J Tang51, G Y Tang1, X Tang1, I Tapan63, M Tiemens37, B Tsednee13, I Uman64, G S Varner39, B Wang1, B L Wang20, C W Wang23, D Y Wang12, Dan Wang20, K Wang1,7, L L Wang1, L S Wang1, M Wang40, Meng Wang1,20, P Wang1, P L Wang1, W P Wang7,8, X F Wang1, Y Wang7,8, Y F Wang1,7,20, Y Q Wang16, Z Wang1,7, Z G Wang1,7, Z Y Wang1, Zongyuan Wang1,20, T Weber4, D H Wei52, P Weidenkaff16, S P Wen1, U Wiedner4, M Wolke42, L H Wu1, L J Wu1,20, Z Wu1,7, L Xia7,8, X Xia40, Y Xia65, D Xiao1, Y J Xiao1,20, Z J Xiao35, Y G Xie1,7, Y H Xie31, X A Xiong1,20, Q L Xiu1,7, G F Xu1, J J Xu1,20, L Xu1, Q J Xu66, Q N Xu20, X P Xu47, F Yan22, L Yan5,6, W B Yan7,8, W C Yan61, Y H Yan65, H J Yang24, H X Yang1, L Yang18, S L Yang1,20, Y H Yang23, Y X Yang52, Yifan Yang1,20, M Ye1,7, M H Ye49, J H Yin1, Z Y You50, B X Yu1,7,20, C X Yu26, C Z Yuan1,20, Y Yuan1, A Yuncu21, A A Zafar41, A Zallo11, Y Zeng65, Z Zeng7,8, B X Zhang1, B Y Zhang1,7, C C Zhang1, D H Zhang1, H H Zhang50, H Y Zhang1,7, J Zhang1,20, J L Zhang67, J Q Zhang4, J W Zhang1,7,20, J Y Zhang1, J Z Zhang1,20, K Zhang1,20, L Zhang28, S F Zhang23, T J Zhang24, X Y Zhang40, Y Zhang7,8, Y H Zhang1,7, Y T Zhang7,8, Yang Zhang1, Yao Zhang1, Yu Zhang20, Z H Zhang31, Z P Zhang8, Z Y Zhang18, G Zhao1, J W Zhao1,7, J Y Zhao1,20, J Z Zhao1,7, Lei Zhao7,8, Ling Zhao1, M G Zhao26, Q Zhao1, S J Zhao27, T C Zhao1, Y B Zhao1,7, Z G Zhao7,8, A Zhemchugov10, B Zheng22, J P Zheng1,7, W J Zheng40, Y H Zheng20, B Zhong35, L Zhou1,7, Q Zhou1,20, X Zhou18, X K Zhou7,8, X R Zhou7,8, X Y Zhou1, A N Zhu1,20, J Zhu50, J Zhu50, K Zhu1, K J Zhu1,7,20, S Zhu1, S H Zhu68, X L Zhu28, Y C Zhu7,8, Y S Zhu1,20, Z A Zhu1,20, J Zhuang1,7, B S Zou1, J H Zou1.
Abstract
Using a 3.19 fb^{-1} data sample collected at an e^{+}e^{-} center-of-mass energy of E_{cm}=4.178 GeV with the BESIII detector, we measure the branching fraction of the leptonic decay D_{s}^{+}→μ^{+}ν_{μ} to be B_{D_{s}^{+}→μ^{+}ν_{μ}}=(5.49±0.16_{stat}±0.15_{syst})×10^{-3}. Combining our branching fraction with the masses of the D_{s}^{+} and μ^{+} and the lifetime of the D_{s}^{+}, we determine f_{D_{s}^{+}}|V_{cs}|=246.2±3.6_{stat}±3.5_{syst} MeV. Using the c→s quark mixing matrix element |V_{cs}| determined from a global standard model fit, we evaluate the D_{s}^{+} decay constant f_{D_{s}^{+}}=252.9±3.7_{stat}±3.6_{syst} MeV. Alternatively, using the value of f_{D_{s}^{+}} calculated by lattice quantum chromodynamics, we find |V_{cs}|=0.985±0.014_{stat}±0.014_{syst}. These values of B_{D_{s}^{+}→μ^{+}ν_{μ}}, f_{D_{s}^{+}}|V_{cs}|, f_{D_{s}^{+}} and |V_{cs}| are each the most precise results to date.Year: 2019 PMID： 30848637 DOI： 10.1103/PhysRevLett.122.071802
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161