The decays ψ′→γπ0, γη and γη′ are studied using data collected with the BESIII detector at the BEPCII e+e- collider. The processes ψ′→γπ0 and ψ′→γη are observed for the first time with signal significances of 4.6σ and 4.3σ, respectively. The branching fractions are determined to be B(ψ′→γπ0)=(1.58±0.40±0.13)×10-6, B(ψ′→γη)=(1.38±0.48±0.09)×10-6, and B(ψ′→γη′)=(126±3±8)×10-6, where the first errors are statistical and the second ones systematic.

Evidence for ψ′ Decays into γπ0 and γη

DESTEFANIS, MARCO GIOVANNI;GRECO, Michela;MAGGIORA, MARCO;SPATARO, STEFANO GIOVANNI;
2010-01-01

Abstract

The decays ψ′→γπ0, γη and γη′ are studied using data collected with the BESIII detector at the BEPCII e+e- collider. The processes ψ′→γπ0 and ψ′→γη are observed for the first time with signal significances of 4.6σ and 4.3σ, respectively. The branching fractions are determined to be B(ψ′→γπ0)=(1.58±0.40±0.13)×10-6, B(ψ′→γη)=(1.38±0.48±0.09)×10-6, and B(ψ′→γη′)=(126±3±8)×10-6, where the first errors are statistical and the second ones systematic.
2010
105
261801-1
261801-6
http://prl.aps.org/
M Ablikim; M N Achasov; L An; Q An; Z H An; J Z Bai; R Baldini; Y Ban; J Becker; N Berger; M Bertani; J M Bian; I Boyko; R A Briere; V Bytev; X Cai; G F Cao; X X Cao; J F Chang; G Chelkov; G Chen; H S Chen; J C Chen; M L Chen; S J Chen; Y Chen; Y B Chen; H P Cheng; Y P Chu; D Cronin-Hennessy; H L Dai; J P Dai; D Dedovich; ZY Deng; I Denysenko; M Destefanis; Y Ding; LY Dong; MY Dong; S X Du; MY Duan; R R Fan; J Fang; S S Fang; F Feldbauer; C Q Feng; C D Fu; J L Fu; Y Gao; C Geng; K Goetzen; W X Gong; M Greco; S Grishin; M H Gu; Y T Gu; Y H Guan; A Q Guo; L B Guo; Y P Guo; X Q Hao; F A Harris; K L He; M He; ZY He; Y K Heng; Z L Hou; H M Hu; J F Hu; T Hu; B Huang; G M Huang; J S Huang; X T Huang; Y P Huang; T Hussain; C S Ji; Q Ji; X B Ji; X L Ji; L K Jia; L L Jiang; X S Jiang; J B Jiao; Z Jiao; D P Jin; S Jin; F F Jing; M Kavatsyuk; S Komamiya; W Kuehn; J S Lange; J K C Leung; Cheng Li; Cui Li; D M Li; F Li; G Li; H B Li; J C Li; Lei Li; N B Li; Q J Li; W D Li; W G Li; X L Li; X N Li; X Q Li; X R Li; Z B Li; H Liang; Y F Liang; Y T Liang; G R Liao; X T Liao; B J Liu; B J Liu; C L Liu; C X Liu; CY Liu; F H Liu; Fang Liu; Feng Liu; G C Liu; H Liu; H B Liu; H M Liu; HW Liu; J P Liu; K Liu; KY Liu; Q Liu; S B Liu; X H Liu; Y B Liu; YW Liu; Yong Liu; Z A Liu; Z Q Liu; H Loehner; G R Lu; H J Lu; J G Lu; QW Lu; X R Lu; Y P Lu; C L Luo; M X Luo; T Luo; X L Luo; C L Ma; F C Ma; H L Ma; Q M Ma; T Ma; X Ma; XY Ma; M Maggiora; Q A Malik; H Mao; Y J Mao; Z P Mao; J G Messchendorp; J Min; R E Mitchell; X H Mo; C Motzko; NYu Muchnoi; Y Nefedov; Z Ning; S L Olsen; Q Ouyang; S Pacetti; M Pelizaeus; K Peters; J L Ping; R G Ping; R Poling; C S J Pun; M Qi; S Qian; C F Qiao; X S Qin; J F Qiu; K H Rashid; G Rong; X D Ruan; A Sarantsev; J Schulze; M Shao; C P Shen; XY Shen; HY Sheng; M R Shepherd; XY Song; S Sonoda; S Spataro; B Spruck; D H Sun; G X Sun; J F Sun; S S Sun; X D Sun; Y J Sun; Y Z Sun; Z J Sun; Z T Sun; C J Tang; X Tang; X F Tang; H L Tian; D Toth; G S Varner; X Wan; B Q Wang; K Wang; L L Wang; L S Wang; P Wang; P L Wang; Q Wang; S G Wang; X L Wang; Y D Wang; Y F Wang; Y Q Wang; Z Wang; Z G Wang; ZY Wang; D H Wei; S P Wen; U Wiedner; L H Wu; N Wu; W Wu; Z Wu; Z J Xiao; Y G Xie; G F Xu; G M Xu; H Xu; Y Xu; Z R Xu; Z Z Xu; Z Xue; L Yan; W B Yan; Y H Yan; H X Yang; M Yang; T Yang; Y Yang; Y X Yang; M Ye; M H Ye; B X Yu; C X Yu; L Yu; C Z Yuan; W L Yuan; Y Yuan; A A Zafar; A Zallo; Y Zeng; B X Zhang; BY Zhang; C C Zhang; D H Zhang; H H Zhang; HY Zhang; J Zhang; JW Zhang; JY Zhang; J Z Zhang; L Zhang; S H Zhang; T R Zhang; X J Zhang; XY Zhang; Y Zhang; Y H Zhang; Z P Zhang; ZY Zhang; G Zhao; H S Zhao; Jiawei Zhao; Jingwei Zhao; Lei Zhao; Ling Zhao; M G Zhao; Q Zhao; S J Zhao; T C Zhao; X H Zhao; Y B Zhao; Z G Zhao; Z L Zhao; A Zhemchugov; B Zheng; J P Zheng; Y H Zheng; Z P Zheng; B Zhong; J Zhong; L Zhong; L Zhou; X K Zhou; X R Zhou; C Zhu; K Zhu; K J Zhu; S H Zhu; X L Zhu; XW Zhu; Y S Zhu; Z A Zhu; J Zhuang; B S Zou; J H Zou; J X Zuo; P Zweber
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/99174
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