Study of the decay D-0 -> (K)over-bar(0)pi(-)e(+)nu(e)
M. Ablikim,M. N. Achasov,S. Ahmed,M. Albrecht,M. Alekseev,A. Amoroso,F. F. An,Q. An,Y. Bai,O. Bakina,R. Baldini Ferroli,Y. Ban,K. Begzsuren,D. W. Bennett,J. V. Bennett,N. Berger,M. Bertani,D. Bettoni,F. Bianchi,E. Boger,I. Boyko,R. A. Briere,H. Cai,X. Cai,A. Calcaterra,G. F. Cao,S. A. Cetin,J. Chai,J. F. Chang,W. L. Chang,G. Chelkov,G. Chen,H. S. Chen,J. C. Chen,M. L. Chen,P. L. Chen,S. J. Chen,X. R. Chen,Y. B. Chen,W. Cheng,X. K. Chu,G. Cibinetto,F. Cossio,H. L. Dai,J. P. Dai,A. Dbeyssi,D. Dedovich,Z. Y. Deng,A. Denig,I. Denysenko,M. Destefanis,F. De Mori,Y. Ding,C. Dong,J. Dong,L. Y. Dong,M. Y. Dong,Z. L. Dou,S. X. Du,P. F. Duan,J. Fang,S. S. Fang,Y. Fang,R. Farinelli,L. Fava,F. Feldbauer,G. Felici,C. Q. Feng,M. Fritsch,C. D. Fu,Q. Gao,X. L. Gao,Y. Gao,Y. G. Gao,Z. Gao,B. Garillon,I. Garzia,A. Gilman,K. Goetzen,L. Gong,W. X. Gong,W. Gradl,M. Greco,L. M. Gu,M. H. Gu,Y. T. Gu,A. Q. Guo,L. B. Guo,R. P. Guo,Y. P. Guo,A. Guskov,Z. Haddadi,S. Han,X. Q. Hao,F. A. Harris,K. L. He,F. H. Heinsius,T. Held,Y. K. Heng,Z. L. Hou,H. M. Hu,J. F. Hu,T. Hu,Y. Hu,G. S. Huang,J. S. Huang,X. T. Huang,X. Z. Huang,Z. L. Huang,T. Hussain,W. Ikegami Andersson,W. Imoehl,M. Irshad,Q. Ji,Q. P. Ji,X. B. Ji,X. L. Ji,H. L. Jiang,X. S. Jiang,X. Y. Jiang,J. B. Jiao,Z. Jiao,D. P. Jin,S. Jin,Y. Jin,T. Johansson,N. Kalantar-Nayestanaki,X. S. Kang,M. Kavatsyuk,B. C. Ke,I. K. Keshk,T. Khan,A. Khoukaz,P. Kiese,R. Kiuchi,R. Kliemt,L. Koch,O. B. Kolcu,B. Kopf,M. Kuemmel,M. Kuessner,A. Kupsc,M. Kurth,W. Kuehn,J. S. Lange,P. Larin,L. Lavezzi,S. Leiber,H. Leithoff,C. Li,Cheng Li,D. M. Li,F. Li,F. Y. Li,G. Li,H. B. Li,H. J. Li,J. C. Li,J. W. Li,K. J. Li,Kang Li,Ke Li,Lei Li,P. L. Li,P. R. Li,Q. Y. Li,T. Li,W. D. Li,W. G. Li,X. L. Li,X. N. Li,X. Q. Li,Z. B. Li,H. Liang,Y. F. Liang,Y. T. Liang,G. R. Liao,L. Z. Liao,J. Libby,C. X. Lin,D. X. Lin,B. Liu,B. J. Liu,C. X. Liu,D. Liu,D. Y. Liu,F. H. Liu,Fang Liu,Feng Liu,H. B. Liu,H. L. Liu,H. M. Liu,Huanhuan Liu,Huihui Liu,J. B. Liu,J. Y. Liu,K. Y. Liu,Ke Liu,L. D. Liu,Q. Liu,S. B. Liu,X. Liu,Y. B. Liu,Z. A. Liu,Zhiqing Liu,Y. F. Long,X. C. Lou,H. J. Lu,J. G. Lu,Y. Lu,Y. P. Lu,C. L. Luo,M. X. Luo,P. W. Luo,T. Luo,X. L. Luo,S. Lusso,X. R. Lyu,F. C. Ma,H. L. Ma,L. L. Ma,M. M. Ma,Q. M. Ma,X. N. Ma,X. Y. Ma,Y. M. Ma,F. E. Maas,M. Maggiora,S. Maldaner,S. Malde,Q. A. Malik,A. Mangoni,Y. J. Mao,Z. P. Mao,S. Marcello,Z. X. Meng,J. G. Messchendorp,G. Mezzadri,J. Min,T. J. Min,R. E. Mitchell,X. H. Mo,Y. J. Mo,C. Morales Morales,N. Yu. Muchnoi,H. Muramatsu,A. Mustafa,S. Nakhoul,Y. Nefedov,F. Nerling,I. B. Nikolaev,Z. Ning,S. Nisar,S. L. Niu,X. Y. Niu,S. L. Olsen,Q. Ouyang,S. Pacetti,Y. Pan,M. Papenbrock,P. Patteri,M. Pelizaeus,J. Pellegrino,H. P. Peng,Z. Y. Peng,K. Peters,J. Pettersson,J. L. Ping,R. G. Ping,A. Pitka,R. Poling,V. Prasad,H. R. Qi,M. Qi,T. Y. Qi,S. Qian,C. F. Qiao,N. Qin,X. S. Qin,Z. H. Qin,J. F. Qiu,S. Q. Qu,K. H. Rashid,C. F. Redmer,M. Richter,M. Ripka,A. Rivetti,M. Rolo,G. Rong,Ch. Rosner,A. Sarantsev,M. Savrie,K. Schoenning,W. Shan,X. Y. Shan,M. Shao,C. P. Shen,P. X. Shen,X. Y. Shen,H. Y. Sheng,X. Shi,J. J. Song,W. M. Song,X. Y. Song,S. Sosio,C. Sowa,S. Spataro,F. F. Sui,G. X. Sun,J. F. Sun,L. Sun,S. S. Sun,X. H. Sun,Y. J. Sun,Y. K. Sun,Y. Z. Sun,Z. J. Sun,Z. T. Sun,Y. T. Tan,C. J. Tang,G. Y. Tang,X. Tang,M. Tiemens,B. Tsednee,I. Uman,B. Wang,B. L. Wang,C. W. Wang,D. Wang,D. Y. Wang,H. H. Wang,K. Wang,L. L. Wang,L. S. Wang,M. Wang,Meng Wang,P. Wang,P. L. Wang,W. P. Wang,X. F. Wang,Y. Wang,Y. F. Wang,Y. Q. Wang,Z. Wang,Z. G. Wang,Z. Y. Wang,Zongyuan Wang,T. Weber,D. H. Wei,P. Weidenkaff,S. P. Wen,U. Wiedner,M. Wolke,L. H. Wu,L. J. Wu,Z. Wu,L. Xia,X. Xia,Y. Xia,D. Xiao,Y. J. Xiao,Z. J. Xiao,Y. G. Xie,Y. H. Xie,X. A. Xiong,Q. L. Xiu,G. F. Xu,J. J. Xu,L. Xu,Q. J. Xu,X. P. Xu,F. Yan,L. Yan,W. B. Yan,W. C. Yan,Y. H. Yan,H. J. Yang,H. X. Yang,L. Yang,R. X. Yang,S. L. Yang,Y. H. Yang,Y. X. Yang,Yifan Yang,Z. Q. Yang,M. Ye,M. H. Ye,J. H. Yin,Z. Y. You,B. X. Yu,C. X. Yu,J. S. Yu,J. S. Yu,C. Z. Yuan,Y. Yuan,A. Yuncu,A. A. Zafar,Y. Zeng,B. X. Zhang,B. Y. Zhang,C. C. Zhang,D. H. Zhang,H. H. Zhang,H. Y. Zhang,J. Zhang,J. L. Zhang,J. Q. Zhang,J. W. Zhang,J. Y. Zhang,J. Z. Zhang,K. Zhang,L. Zhang,S. F. Zhang,T. J. Zhang,X. Y. Zhang,Y. Zhang,Y. H. Zhang,Y. T. Zhang,Yang Zhang,Yao Zhang,Yu Zhang,Z. H. Zhang,Z. P. Zhang,Z. Y. Zhang,G. Zhao,J. W. Zhao,J. Y. Zhao,J. Z. Zhao,Lei Zhao,Ling Zhao,M. G. Zhao,Q. Zhao,S. J. Zhao,T. C. Zhao,Y. B. Zhao,Z. G. Zhao,A. Zhemchugov,B. Zheng,J. P. Zheng,W. J. Zheng,Y. H. Zheng,B. Zhong,L. Zhou,Q. Zhou,X. Zhou,X. K. Zhou,X. R. Zhou,X. Y. Zhou,Xiaoyu Zhou,Xu Zhou,A. N. Zhu,J. Zhu,J. Zhu,K. Zhu,K. J. Zhu,S. Zhu,S. H. Zhu,X. L. Zhu,Y. C. Zhu,Y. S. Zhu,Z. A. Zhu,J. Zhuang,B. S. Zou,J. H. Zou
PHYSICAL REVIEW D（2019）
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摘要
We report a study of the decay D-0 -> (K) over bar (0)pi(-)e(+)nu(e) based on a sample of 2.93 fb(-1) e(+)e(-) annihilation data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. The total branching fraction is determined to be B(D-0 -> (K) over bar (0)pi(-)e(+)nu(e)) = (1.434 +/- 0.029(stat.) +/- 0.032(syst.))%, which is the most precise to date. According to a detailed analysis of the involved dynamics, we find this decay is dominated with the K*(892)(-) contribution and present an improved measurement of its branching fraction to be B(D-0 -> K*(892)(-)e(+)nu(e) = (2.033 +/- 0.046(stat.) +/- 0.047(syst.))%. We further access their hadronic form-factor ratios for the first time as r(V) = V(0)/A(1)(0) = 1.46 +/- 0.07(stat.) +/- 0.02(syst.) and r(2) = A(2)(0)/A(1)(0) = 0.67 +/- 0.06(stat.) +/- 0.01(syst.). In addition, we observe a significant (K) over bar (0)pi(-) S-wave component accounting for (5.51 +/- 0.97(stat.) +/- 0.62(syst.))% of the total decay rate.
