The numbers of φ(3686) events accumulated by the BESIII detector for the data taken during 2009 and 2012 are determined to be (107:0±0:8) ×10⁶ and (341:1±2:1)×10⁶ , respectively, by counting inclusive hadronic events, where the uncertainties are systematic and the statistical uncertainties are negligible. The number of events for the sample taken in 2009 is consistent with that of the previous measurement. The total number of φ(3686) events for the two data taking periods is (448:1±2:9)×10⁶ .

Y. D. Wang;M. Ablikim;M. N. Achasov;X. C. Ai;D. J. Ambrose;A. Amoroso;F. F. An;琪 安;J. Z. Bai;R. Baldini Ferroli;Y. Ban;J. V. Bennett;M. Bertani;J. M. Bian;E. Boger;O. Bondarenko;I. Boyko;R. A. Briere;浩 蔡;X. Cai;O. Cakir;A. Calcaterra;G. F. Cao;S. A. Cetin;J. F. Chang;G. Chelkov;G. Chen;H. S. Chen;J. C. Chen;M. L. Chen;S. J. Chen;X. Chen;旭荣 陈;Y. B. Chen;X. K. Chu;Y. P. Chu;D. Cronin-Hennessy;H. L. Dai;J. P. Dai;D. Dedovich;Z. Y. Deng;A. Denig;I. Denysenko;M. Destefanis;Y. Ding;C. Dong;J. Dong;燎原 董;M. Y. Dong;S. X. Du;J. Z. Fan;J. Fang;双世 房;Y. Fang;L. Fava;F. Feldbauer;C. Q. Feng;C. D. Fu;Q. Gao;Y. Gao;K. Goetzen;W. X. Gong;W. Gradl;M. Greco;M. H. Gu;Y. T. Gu;Y. H. Guan;A. Q. Guo;Y. P. Guo;Y. L. Han;F. A. Harris;K. L. He;M. He;T. Held;Y. K. Heng;Z. L. Hou;H. M. Hu;T. Hu;G. S. Huang;J. S. Huang;L. Huang;性涛 黄;T. Hussain;Q. Ji;Q. P. Ji;晓斌 季;X. L. Ji;L. L. Jiang;X. S. Jiang;J. B. Jiao;Z. Jiao;D. P. Jin;S. Jin;T. Johansson;N. Kalantar-Nayestanaki;X. L. Kang;X. S. Kang;M. Kavatsyuk;B. Kloss;B. Kopf;M. Kornicer;A. Kupsc;W. Kühn;W. Lai;J. S. Lange;M. Lara;P. Larin;C. H. Li;澄 李;德民 李;F. Li;G. Li;海波 李;J. C. Li;Kang Li;Ke Li;Lei Li;P. R. Li;Q. J. Li;卫东 李;W. G. Li;晓磊 李;X. N. Li;X. Q. Li;X. R. Li;Z. B. Li;H. Liang;Y. F. Liang;Y. T. Liang;G. R. Liao;D. X. Lin;B. J. Liu;C. X. Liu;F. H. Liu;Fang Liu;Feng Liu;H. B. Liu;H. M. Liu;Huihui Liu;J. Liu;觉平 刘;K. Liu;K. Y. Liu;前 刘;S. B. Liu;X. Liu;Y. B. Liu;Z. A. Liu;Zhiqiang Liu;Zhiqing Liu;H. Loehner;X. C. Lou;H. J. Lu;H. L. Lu;J. G. Lu;Y. Lu;Y. P. Lu;C. L. Luo;M. X. Luo;T. Luo;X. L. Luo;M. Lv;X. R. Lyu;F. C. Ma;H. L. Ma;Q. M. Ma;S. Ma;T. Ma;X. Y. Ma;F. E. Maas;M. Maggiora;Y. J. Mao;Z. P. Mao;J. G. Messchendorp;J. Min;T. J. Min;R. E. Mitchell;X. H. Mo;Y. J. Mo;C. Morales Morales;K. Moriya;N. Yu Muchnoi;H. Muramatsu;Y. Nefedov;I. B. Nikolaev;Z. Ning;S. Nisar;S. L. Niu;X. Y. Niu;S. L. Olsen;Q. Ouyang;S. Pacetti;M. Pelizaeus;H. P. Peng;K. Peters;加伦 平;R. G. Ping;R. Poling;M. Qi;S. Qian;从丰 乔;X. S. Qin;Z. H. Qin;J. F. Qiu;K. H. Rashid;C. F. Redmer;M. Ripka;刚 荣;A. Sarantsev;K. Schoenning;W. Shan;M. Shao;C. P. Shen;肖雁 沈;H. Y. Sheng;M. R. Shepherd;W. M. Song;X. Y. Song;S. Sosio;S. Spataro;G. X. Sun;J. F. Sun;S. S. Sun;洁琬 孙;Y. Z. Sun;Z. J. Sun;昌建 唐;孝威 唐;I. Tapan;E. H. Thorndike;D. Toth;I. Uman;G. S. Varner;B. Wang;D. Wang;D. Y. Wang;K. Wang;L. L. Wang;L. S. Wang;M. Wang;平 王;P. L. Wang;Q. J. Wang;W. Wang;X. F. Wang;Y. D. Wang;贻芳 王;Y. Q. Wang;Z. Wang;志刚 王;Z. Y. Wang;D. H. Wei;P. Weidenkaff;S. P. Wen;U. Wiedner;M. Wolke;L. H. Wu;Z. Wu;L. G. Xia;Y. Xia;D. Xiao;振军 肖;Y. G. Xie;Q. L. Xiu;G. F. Xu;L. Xu;Q. J. Xu;Q. N. Xu;X. P. Xu;W. B. Yan;Y. H. Yan;H. X. Yang;Y. Yang;Y. X. Yang;H. Ye;M. Ye;铭汉 叶;B. X. Yu;C. X. Yu;J. S. Yu;长征 苑;Y. Yuan;A. A. Zafar;Y. Zeng;B. X. Zhang;B. Y. Zhang;C. C. Zhang;D. H. Zhang;宏浩 张;H. Y. Zhang;J. J. Zhang;J. Q. Zhang;J. W. Zhang;景芝 张;J. Z. Zhang;L. Zhang;R. Zhang;S. H. Zhang;X. J. Zhang;X. Y. Zhang;Y. H. Zhang;尧 张;Z. H. Zhang;Z. P. Zhang;Z. Y. Zhang;G. Zhao;J. W. Zhao;J. Z. Zhao;Lei Zhao;Ling Zhao;M. G. Zhao;Q. Zhao;Q. W. Zhao;S. J. Zhao;T. C. Zhao;Y. B. Zhao;政国 赵;A. Zhemchugov;B. Zheng;J. P. Zheng;Y. H. Zheng;B. Zhong;L. Zhou;X. Zhou;X. K. Zhou;X. R. Zhou;X. Y. Zhou;K. Zhu;K. J. Zhu;X. L. Zhu;Y. C. Zhu;Y. S. Zhu;Z. A. Zhu;J. Zhuang;冰松 邹;J. H. Zou

Chinese Physics C

2018-2

Using a data sample with a total integrated luminosity of 10.0 pb^-1 collected at center-of-mass energies of 2.6, 3.07 and 3.65 GeV with BESII, cross sections for e⁺ e^- annihilation into hadronic final states (R values) are measured with statistical errors that are smaller than 1%, and systematic errors that are about 3.5 %. The running strong interaction coupling constants α_s⁽³⁾ (s) and α_s⁽⁵⁾ (M_Z²) are determined from the R values.

M. Ablikim;J. Z. Bai;Y. Bai;Y. Ban;X. Cai;H. F. Chen;H. S. Chen;H. X. Chen;J. C. Chen;Jin Chen;X. D. Chen;Y. B. Chen;Y. P. Chu;Y. S. Dai;Z. Y. Deng;S. X. Du;J. Fang;C. D. Fu;C. S. Gao;Y. N. Gao;S. D. Gu;Y. T. Gu;Y. N. Guo;Y. Q. Guo;Z. J. Guo;F. A. Harris;K. L. He;M. He;Y. K. Heng;H. M. Hu;J. H. Hu;T. Hu;G. S. Huang;X. T. Huang;Y. P. Huang;X. B. Ji;X. S. Jiang;J. B. Jiao;D. P. Jin;S. Jin;Y. Jin;G. Li;H. B. Li;H. H. Li;J. Li;L. Li;R. Y. Li;W. D. Li;W. G. Li;X. L. Li;X. N. Li;X. Q. Li;Y. F. Liang;B. J. Liu;C. X. Liu;Fang Liu;Feng Liu;H. M. Liu;J. P. Liu;H. B. Liu;J. Liu;Q. Liu;R. G. Liu;S. Liu;Z. A. Liu;F. Lu;G. R. Lu;J. G. Lu;C. L. Luo;F. C. Ma;H. L. Ma;Q. M. Ma;M. Q.A. Malik;Z. P. Mao;X. H. Mo;J. Nie;S. L. Olsen;R. G. Ping;N. D. Qi;J. F. Qiu;G. Rong;X. D. Ruan;L. Y. Shan;L. Shang;C. P. Shen;X. Y. Shen;H. Y. Sheng;H. S. Sun;S. S. Sun;Y. Z. Sun;Z. J. Sun;X. Tang;J. P. Tian;G. L. Tong;G. S. Varner;X. Wan;L. Wang;L. L. Wang;L. S. Wang;P. Wang;P. L. Wang;Y. F. Wang;Z. Wang;Z. Y. Wang;C. L. Wei;D. H. Wei;Y. Weng;N. Wu;X. M. Xia;G. F. Xu;X. P. Xu;Y. Xu;M. L. Yan;H. X. Yang;M. Yang;Y. X. Yang;M. H. Ye;Y. X. Ye;C. X. Yu;C. Z. Yuan;Y. Yuan;Y. Zeng;B. X. Zhang;B. Y. Zhang;C. C. Zhang;D. H. Zhang;H. Q. Zhang;H. Y. Zhang;J. W. Zhang;J. Y. Zhang;X. Y. Zhang;Y. Y. Zhang;Z. X. Zhang;Z. P. Zhang;D. X. Zhao;J. W. Zhao;M. G. Zhao;P. P. Zhao;Z. G. Zhao;B. Zheng;H. Q. Zheng;J. P. Zheng;Z. P. Zheng;B. Zhong;L. Zhou;K. J. Zhu;Q. M. Zhu;X. W. Zhu;Y. S. Zhu;Z. A. Zhu;Z. L. Zhu;B. A. Zhuang;B. S. Zou

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

2009-6-29

The cross section for e⁺e-→ρπ has been measured by the BES detector at BEPC at center-of-mass energies covering a 40 MeV interval spanning the J/ψresonance. The data are used to search for the vector gluonium state hypothesized by Brodsky, Lepage, and Tuan as an explanation of the ρπ puzzle in charmonium physics. The shape of the ρπ cross section is compatible with that of the total hadronic cross section. No distortions indicating the presence of a vector glueball are seen.

J. Z. Bai;O. Bardon;I. Blum;A. Breakstone;T. Burnett;G. P. Chen;H. F. Chen;J. Chen;S. M. Chen;裕启 陈;蕴博 陈;Y. Q. Chen;B. S. Cheng;R. F. Cowan;翔 崔;H. L. Ding;Z. Z. Du;W. Dunwoodie;X. L. Fan;J. Fang;M. Fero;C. S. Gao;M. L. Gao;S. Q. Gao;P. Gratton;J. H. Gu;S. D. Gu;W. X. Gu;Y. F. Gu;Y. N. Guo;S. W. Han;Y. Han;F. A. Harris;M. Hatanaka;J. He;M. He;D. G. Hitlin;G. Y. Hu;T. Hu;X. Q. Hu;D. Q. Huang;Y. Z. Huang;J. M. Izen;Q. P. Jia;C. H. Jiang;S. Jin;Y. Jin;L. Jones;S. H. Kang;Z. J. Ke;M. H. Kelsey;B. K. Kim;D. Kong;Y. F. Lai;H. B. Lan;P. F. Lang;A. Lankford;F. Li;J. Li;P. Q. Li;Q. Li;R. B. Li;W. Li;卫东 李;W. G. Li;X. H. Li;X. N. Li;S. Z. Lin;H. M. Liu;J. Liu;J. H. Liu;Q. Liu;R. G. Liu;Y. Liu;Z. A. Liu;X. C. Lou;B. Lowery;J. G. Lu;S. Q. Luo;Y. Luo;A. M. Ma;E. C. Ma;J. M. Ma;H. S. Mao;Z. P. Mao;R. Malchow;M. Mandelkern;X. C. Meng;H. L. Ni;J. Nie;S. L. Olsen;J. Oyang;D. Paluselli;L. J. Pan;J. Panetta;F. Porter;E. Prabhakar;N. D. Qi;Y. K. Que;J. Quigley;刚 荣;M. Schernau;B. Schmid;J. Schultz;Y. Y. Shao;B. W. Shen;D. L. Shen;H. Shen;肖雁 沈;H. Y. Sheng;H. Z. Shi;X. R. Shi;A. Smith;E. Soderstrom;X. F. Song;J. Standifird;D. Stoker;F. Sun;H. S. Sun;S. J. Sun;J. Synodinos;Y. P. Tan;S. Q. Tang;W. Toki;G. L. Tong;E. Torrence;F. Wang;L. S. Wang;L. Z. Wang;萌 王;P. Wang;P. L. Wang;S. M. Wang;T. J. Wang;Y. Y. Wang;C. L. Wei;S. Whittaker;R. Wilson;W. J. Wisniewski;D. M. Xi;X. M. Xia;P. P. Xie;W. J. Xiong;D. Z. Xu;R. S. Xu;Z. Q. Xu;S. T. Xue;R. Yamamoto;J. Yan;W. G. Yan;C. M. Yang;C. Y. Yang;J. Yang;W. Yang;铭汉 叶;S. W. Ye;S. Z. Ye;K. Young;C. S. Yu;C. X. Yu;Z. Q. Yu;长征 苑;B. Y. Zhang;C. C. Zhang;D. H. Zhang;H. L. Zhang;J. Zhang;J. W. Zhang;L. S. Zhang;S. Q. Zhang;Y. Zhang;Y. Y. Zhang;D. X. Zhao;H. W. Zhao;J. W. Zhao;M. Zhao;P. D. Zhao;W. R. Zhao;J. P. Zheng;L. S. Zheng;Z. P. Zheng;G. P. Zhou;H. S. Zhou;L. Zhou;X. F. Zhou;Y. H. Zhou;Q. M. Zhu;Y. C. Zhu;Y. S. Zhu;B. A. Zhuang;G. Zioulas

Physical Review D - Particles, Fields, Gravitation and Cosmology

1996

From December 2011 to May 2014, about 5 fb^-1 of data were taken with the BESIII detector at center-of-mass energies between 3.810 GeV and 4.600 GeV to study the charmonium-like states and higher excited charmonium states. The time-integrated luminosity of the collected data sample is measured to a precision of 1% by analyzing events produced by the large-angle Bhabha scattering process.

M. Ablikim;M. N. Achasov;X. C. Ai;O. Albayrak;M. Albrecht;D. J. Ambrose;A. Amoroso;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;D. W. Bennett;J. V. Bennett;M. Bertani;H. Cai;G. Chen;H. S. Chen;X. R. Chen;L. Y. Dong;S. S. Fang;L. B. Guo;X. T. Huang;X. B. Ji;Cheng Li;D. M. Li;G. Li;H. B. Li;W. D. Li;X. L. Li;J. P. Liu;Q. Liu;J. L. Ping;C. F. Qiao;G. Rong;X. Y. Shen;Y. J. Sun;C. J. Tang;X. Tang;P. Wang;Y. F. Wang;Z. Wang;Z. J. Xiao;M. H. Ye;C. Z. Yuan;H. H. Zhang;J. Y. Zhang;G. Zhao;Z. G. Zhao;B. S. Zou

Chinese Physics C

2015-9-1

We report the first measurement of the absolute branching fraction for Λc+→Λe+νe. This measurement is based on 567 pb-1 of e+e- annihilation data produced at s=4.599 GeV, which is just above the Λc+Λ¯c- threshold. The data were collected with the BESIII detector at the BEPCII storage rings. The branching fraction is determined to be B(Λc+→Λe+νe)=[3.63±0.38(stat)±0.20(syst)]%, representing a significant improvement in precision over the current indirect determination. As the branching fraction for Λc+→Λe+νe is the benchmark for those of other Λc+ semileptonic channels, our result provides a unique test of different theoretical models, which is the most stringent to date.

M. Ablikim;M. N. Achasov;X. C. Ai;O. Albayrak;M. Albrecht;D. J. Ambrose;A. Amoroso;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;D. W. Bennett;J. V. Bennett;M. Bertani;D. Bettoni;H. Cai;G. Chen;H. S. Chen;X. R. Chen;L. Y. Dong;S. S. Fang;L. B. Guo;X. T. Huang;X. B. Ji;Cheng Li;D. M. Li;G. Li;H. B. Li;W. D. Li;X. L. Li;J. P. Liu;Q. Liu;J. L. Ping;C. F. Qiao;G. Rong;X. Y. Shen;Y. J. Sun;C. J. Tang;X. Tang;Y. F. Wang;Z. G. Wang;Z. Y. Wang;Z. J. Xiao;M. H. Ye;C. Z. Yuan;H. H. Zhang;G. Zhao;Z. G. Zhao;B. S. Zou

Physical Review Letters

2015-11-25

The lepton flavor violation processes J/ψ→μτ and eτ are searched for using a sample of 5.8×107 J/ψ events collected with the BESII detector. Zero and one candidate events, consistent with the estimated background, are observed in J/ψ→μτ, τ→eν̄eντ and J/ψ→eτ, τ→μν̄μντ decays, respectively. Upper limits on the branching ratios are determined to be Br(J/ψ→μτ)<2. 0×10-6 and Br(J/ψ→eτ)<8.3×10-6 at the 90% confidence level (C.L.).

M. Ablikim;J. Z. Bai;Y. Ban;J. G. Bian;X. Cai;J. F. Chang;H. F. Chen;H. S. Chen;H. X. Chen;J. C. Chen;J. I. Chen;J. Chen;M. L. Chen;Y. B. Chen;S. P. Chi;Y. P. Chu;X. Z. Cui;H. L. Dai;Y. S. Dai;Z. Y. Deng;L. Y. Dong;S. X. Du;Z. Z. Du;J. Fang;S. S. Fang;C. D. Fu;H. Y. Fu;C. S. Gao;Y. N. Gao;M. Y. Gong;W. X. Gong;S. D. Gu;Y. N. Guo;Y. Q. Guo;Z. J. Guo;F. A. Harris;K. L. He;M. He;X. He;Y. K. Heng;H. M. Hu;T. Hu;G. S. Huang;L. Huang;X. P. Huang;X. B. Ji;Q. Y. Jia;C. H. Jiang;X. S. Jiang;D. P. Jin;S. Jin;Y. Jin;Y. F. Lai;F. Li;G. Li;H. H. Li;J. Li;J. C. Li;Q. J. Li;R. B. Li;R. Y. Li;S. M. Li;W. G. Li;X. L. Lig;X. Q. Li;X. S. Li;Y. F. Liang;H. B. Liao;C. X. Liu;F. Liu;F. Liu;H. M. Liu;J. B. Liu;J. P. Liu;R. G. Liu;Z. A. Liu;Z. X. Liu;F. Lu;G. R. Lu;J. G. Lu;C. L. Luo;X. L. Luo;F. C. Mag;J. M. Ma;L. L. Ma;Q. M. Ma;X. Y. Ma;Z. P. Mao;X. H. Mo;J. Nie;Z. D. Nie;S. L. Olsen;H. P. Peng;N. D. Qi;C. D. Qian;H. Qin;J. F. Qiu;Z. Y. Ren;G. Rong;L. Y. Shan;L. Shang;D. L. Shen;X. Y. Shen;H. Y. Sheng;F. Shi;X. Shi;H. S. Sun;S. S. Sun;Y. Z. Sun;Z. J. Sun;X. Tang;N. Tao;Y. R. Tian;G. L. Tong;G. S. Varner;D. Y. Wang;J. Z. Wang;K. Wang;L. Wang;L. S. Wang;M. Wang;P. Wang;P. L. Wang;S. Z. Wang;W. F. Wang;Y. F. Wang;Z. Wang;Z. Wang;Z. H. Wang;Z. Y. Wang;C. L. Wei;D. H. Wei;N. Wu;Y. M. Wu;X. M. Xia;X. X. Xie;B. Xing;G. F. Xu;H. Xu;Y. Xu;S. T. Xue;M. L. Yan;F. Yang;H. X. Yang;J. Yang;S. D. Yang;Y. X. Yang;M. Ye;M. H. Ye;Y. X. Ye;L. H. Yi;Z. Y. Yi;C. S. Yu;G. W. Yu;C. Z. Yuan;J. M. Yuan;Y. Yuan;Q. Yue;S. L. Zang;Y. Zeng;Y. Zeng;B. X. Zhang;B. Y. Zhang;C. C. Zhang;D. H. Zhang;H. Y. Zhang;J. Zhang;J. Y. Zhang;J. W. Zhang;L. S. Zhang;Q. J. Zhang;S. Q. Zhang;X. M. Zhang;X. Y. Zhang;Y. J. Zhang;Y. Y. Zhang;Y. Zhang;Z. P. Zhang;Z. Q. Zhang;D. X. Zhao;J. B. Zhao;J. W. Zhao;M. G. Zhao;P. P. Zhao;W. R. Zhao;X. J. Zhao;Y. B. Zhao;Z. G. Zhao;H. Q. Zheng;J. P. Zheng;L. S. Zheng;Z. P. Zheng;X. C. Zhong;B. Q. Zhou;G. M. Zhou;L. Zhou;N. F. Zhou;K. J. Zhu;Q. M. Zhu;Y. C. Zhu;Y. S. Zhu;Y. Zhu;Z. A. Zhu;B. A. Zhuang;B. S. Zou

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

2004-9-30

M. Ablikim;M. N. Achasov;X. C. Ai;O. Albayrak;M. Albrecht;D. J. Ambrose;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;D. W. Bennett;J. V. Bennett;M. Bertani;D. Bettoni;J. M. Bian;F. Bianchi;E. Boger;O. Bondarenko;I. Boyko;H. Cai;G. Chen;H. S. Chen;L. Y. Dong;S. S. Fang;L. B. Guo;X. T. Huang;X. B. Ji;Cheng Li;G. Li;H. B. Li;W. D. Li;X. L. Li;Q. Liu;J. L. Ping;C. F. Qiao;G. Rong;X. Y. Shen;Y. J. Sun;C. J. Tang;X. Tang;P. Wang;Y. F. Wang;Z. J. Xiao;M. Ye;C. Z. Yuan;J. Y. Zhang;G. Zhao;Z. G. Zhao;B. S. Zou

Physical Review D - Particles, Fields, Gravitation and Cosmology

2015-2-2

We report on a study of the process e+e-→π±(DD̄*) - at s=4.26 GeV using a 525 pb-1 data sample collected with the BESIII detector at the BEPCII storage ring. A distinct charged structure is observed in the (DD̄*)- invariant mass distribution. When fitted to a mass-dependent-width Breit-Wigner line shape, the pole mass and width are determined to be Mpole=(3883.9±1.5(stat)±4.2(syst)) MeV/c2 and Γpole=(24.8±3.3(stat)±11.0(syst)) MeV. The mass and width of the structure, which we refer to as Zc(3885), are 2σ and 1σ, respectively, below those of the Zc(3900)→π±J/ψ peak observed by BESIII and Belle in π+π-J/ψ final states produced at the same center-of-mass energy. The angular distribution of the πZc(3885) system favors a JP=1+ quantum number assignment for the structure and disfavors 1- or 0-. The Born cross section times the DD̄* branching fraction of the Zc(3885) is measured to be σ(e+e-→π±Zc(3885)-) ×B(Zc(3885)- →(DD̄*)-)=(83.5±6.6(stat)±22. 0(syst)) pb. Assuming the Zc(3885)→DD̄* signal reported here and the Zc(3900)→πJ/ψ signal are from the same source, the partial width ratio (Γ(Zc(3885)→DD̄*)/Γ(Zc(3900)→πJ/ ψ))=6.2±1.1(stat)±2.7(syst) is determined.

M. Ablikim;M. N. Achasov;O. Albayrak;D. J. Ambrose;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;J. Becker;J. V. Bennett;M. Bertani;J. M. Bian;E. Boger;O. Bondarenko;H. Cai;G. Chen;H. S. Chen;X. R. Chen;L. Y. Dong;S. S. Fang;L. B. Guo;X. T. Huang;X. B. Ji;Cheng Li;D. M. Li;G. Li;H. B. Li;W. D. Li;X. L. Li;J. P. Liu;Q. Liu;F. C. Ma;J. L. Ping;C. F. Qiao;G. Rong;X. Y. Shen;Y. J. Sun;C. J. Tang;X. Tang;P. Wang;Y. F. Wang;Z. Wang;Z. J. Xiao;M. H. Ye;C. Z. Yuan;H. H. Zhang;G. Zhao;Z. G. Zhao;B. S. Zou

Physical Review Letters

2014-1-15

Based on 106 million ψ(3686) events collected with the BESIII detector at the BEPCII, the decay ψ(3686)→ωKK̄π is studied. Enhancements around 1.44 GeV/c2 and the f₁(1285) are observed in the mass spectrum of KK̄π, and the corresponding branching fraction (upper limit) is measured, as well as the branching fractions of ψ(3686) →ωK^*+K^-+c.c. and ψ(3686)→ωK^̄*0K0+c.c., all for the first time.

M. Ablikim;M. N. Achasov;O. Albayrak;D. J. Ambrose;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;J. Becker;J. V. Bennett;M. Bertani;J. M. Bian;E. Boger;O. Bondarenko;I. Boyko;R. A. Briere;V. Bytev;H. Cai;X. Cai;O. Cakir;A. Calcaterra;G. F. Cao;S. A. Cetin;J. F. Chang;G. Chelkov;G. Chen;H. S. Chen;J. C. Chen;M. L. Chen;S. J. Chen;X. Chen;Y. B. Chen;H. P. Cheng;Y. P. Chu;D. Cronin-Hennessy;H. L. Dai;J. P. Dai;D. Dedovich;Z. Y. Deng;A. Denig;I. Denysenko;M. Destefanis;W. M. Ding;Y. Ding;L. Y. Dong;M. Y. Dong;S. X. Du;J. Fang;S. S. Fang;L. Fava;C. Q. Feng;P. Friedel;C. D. Fu;J. L. Fu;Y. Gao;C. Geng;K. Goetzen;W. X. Gong;W. Gradl;M. Greco;M. H. Gu;Y. T. Gu;Y. H. Guan;N. Guler;A. Q. Guo;L. B. Guo;T. Guo;Y. P. Guo;Y. L. Han;F. A. Harris;K. L. He;M. He;Z. Y. He;T. Held;Y. K. Heng;Z. L. Hou;C. Hu;H. M. Hu;J. F. Hu;T. Hu;G. M. Huang;G. S. Huang;J. S. Huang;L. Huang;X. T. Huang;Y. Huang;Y. P. Huang;T. Hussain;C. S. Ji;Q. Ji;Q. P. Ji;X. B. Ji;X. L. Ji;L. L. Jiang;X. S. Jiang;J. B. Jiao;Z. Jiao;D. P. Jin;S. Jin;F. F. Jing;N. Kalantar-Nayestanaki;M. Kavatsyuk;B. Kopf;M. Kornicer;W. Kuehn;W. Lai;J. S. Lange;M. Leyhe;C. H. Li;Cheng Li;Cui Li;D. M. Li;F. Li;G. Li;H. B. Li;J. C. Li;K. Li;Lei Li;Q. J. Li;S. L. 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;D. Lin;B. J. Liu;C. L. Liu;C. X. Liu;F. H. Liu;Fang Liu;Feng Liu;H. Liu;H. B. Liu;H. H. Liu;H. M. Liu;H. W. Liu;J. P. Liu;K. Liu;K. Y. Liu;Kai Liu;P. L. Liu;Q. Liu;S. B. Liu;X. Liu;Y. B. Liu;Z. A. Liu;Zhiqiang Liu;Zhiqing Liu;H. Loehner;G. R. Lu;H. J. Lu;J. G. Lu;Q. W. Lu;X. R. Lu;Y. P. Lu;C. L. Luo;M. X. Luo;T. Luo;X. L. Luo;M. Lv;C. L. Ma;F. C. Ma;H. L. Ma;Q. M. Ma;S. Ma;T. Ma;X. Y. Ma;F. E. Maas;M. Maggiora;Q. A. Malik;Y. J. Mao;Z. P. Mao;J. G. Messchendorp;J. Min;T. J. Min;R. E. Mitchell;X. H. Mo;H. Moeini;C. Morales Morales;K. Moriya;N. Yu Muchnoi;H. Muramatsu;Y. Nefedov;C. Nicholson;I. B. Nikolaev;Z. Ning;S. L. Olsen;Q. Ouyang;S. Pacetti;J. W. Park;M. Pelizaeus;H. P. Peng;K. Peters;J. L. Ping;R. G. Ping;R. Poling;E. Prencipe;M. Qi;S. Qian;C. F. Qiao;L. Q. Qin;X. S. Qin;Y. Qin;Z. H. Qin;J. F. Qiu;K. H. Rashid;G. Rong;X. D. Ruan;A. Sarantsev;H. Sazak;B. D. Schaefer;M. Shao;C. P. Shen;X. Y. Shen;H. Y. Sheng;M. R. Shepherd;W. M. Song;X. Y. Song;S. Spataro;B. Spruck;D. H. Sun;G. X. Sun;J. F. Sun;S. S. Sun;Y. J. Sun;Y. Z. Sun;Z. J. Sun;Z. T. Sun;C. J. Tang;X. Tang;I. Tapan;E. H. Thorndike;D. Toth;M. Ullrich;I. Uman;G. S. Varner;B. Q. Wang;D. Wang;D. Y. Wang;K. Wang;L. L. Wang;L. S. Wang;M. Wang;P. Wang;P. L. Wang;Q. J. Wang;S. G. Wang;X. F. Wang;X. L. Wang;Y. D. Wang;Y. F. Wang;Y. Q. Wang;Z. Wang;Z. G. Wang;Z. Y. Wang;D. H. Wei;J. B. Wei;P. Weidenkaff;Q. G. Wen;S. P. Wen;M. Werner;U. Wiedner;L. H. Wu;N. Wu;S. X. Wu;W. Wu;Z. Wu;L. G. Xia;Y. X. Xia;Z. J. Xiao;Y. G. Xie;Q. L. Xiu;G. F. Xu;G. M. Xu;Q. J. Xu;Q. N. Xu;X. P. Xu;Z. R. Xu;F. Xue;Z. Xue;L. Yan;W. B. Yan;Y. H. Yan;H. X. Yang;Y. Yang;Y. X. Yang;H. Ye;M. Ye;M. H. Ye;B. X. Yu;C. X. Yu;H. W. Yu;J. S. Yu;S. P. Yu;C. Z. Yuan;Y. Yuan;A. A. Zafar;A. Zallo;S. L. Zang;Y. Zeng;B. Zengin;B. X. Zhang;B. Y. Zhang;C. Zhang;C. C. Zhang;D. H. Zhang;H. H. Zhang;H. Y. Zhang;J. Q. Zhang;J. W. Zhang;J. Y. Zhang;J. Z. Zhang;Lili Zhang;R. Zhang;S. H. Zhang;X. J. Zhang;X. Y. Zhang;Y. Zhang;Y. H. Zhang;Z. P. Zhang;Z. Y. Zhang;Zhenghao Zhang;G. Zhao;H. S. Zhao;J. W. Zhao;K. X. 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;A. Zhemchugov;B. Zheng;J. P. Zheng;Y. H. Zheng;B. Zhong;L. Zhou;X. Zhou;X. K. Zhou;X. R. Zhou;C. Zhu;K. Zhu;K. J. Zhu;S. H. Zhu;X. L. Zhu;Y. C. Zhu;Y. M. Zhu;Y. S. Zhu;Z. A. Zhu;J. Zhuang;B. S. Zou;J. H. Zou

Physical Review D - Particles, Fields, Gravitation and Cosmology

2013-5-20

We present a study of the process e+e-→π±(DD¯∗)∓ using data samples of 1092 pb-1 at s=4.23 GeV and 826 pb-1 at s=4.26 GeV collected with the BESIII detector at the BEPCII storage ring. With full reconstruction of the D meson pair and the bachelor π± in the final state, we confirm the existence of the charged structure Zc(3885)∓ in the (DD¯∗)∓ system in the two isospin processes e+e-→π+D0D∗- and e+e-→π+D-D∗0. By performing a simultaneous fit, the statistical significance of Zc(3885)∓ signal is determined to be greater than 10σ, and its pole mass and width are measured to be Mpole=(3881.7±1.6(stat)±1.6(syst)) MeV/c2 and Γpole=(26.6±2.0(stat)±2.1(syst)) MeV, respectively. The Born cross section times the (DD¯∗)∓ branching fraction (σ(e+e-→π±Zc(3885)∓)×Br(Zc(3885)∓→(DD¯∗)∓)) is measured to be (141.6±7.9(stat)±12.3(syst)) pb at s=4.23 GeV and (108.4±6.9(stat)±8.8(syst)) pb at s=4.26 GeV. The polar angular distribution of the π±-Zc(3885)∓ system is consistent with the expectation of a quantum number assignment of JP=1+ for Zc(3885)∓.

M. Ablikim;M. N. Achasov;X. C. Ai;O. Albayrak;M. Albrecht;D. J. Ambrose;A. Amoroso;F. F. An;Q. An;J. Z. Bai;R. Baldini Ferroli;Y. Ban;D. W. Bennett;J. V. Bennett;H. Cai;G. Chen;H. S. Chen;X. R. Chen;L. Y. Dong;S. S. Fang;L. B. Guo;X. T. Huang;X. B. Ji;Cheng Li;D. M. Li;G. Li;H. B. Li;W. D. Li;X. L. Li;J. P. Liu;Q. Liu;F. C. Ma;J. L. Ping;C. F. Qiao;G. Rong;X. Y. Shen;Y. J. Sun;C. J. Tang;X. Tang;P. Wang;Y. F. Wang;Z. Wang;Z. Y. Wang;Z. J. Xiao;M. H. Ye;C. Z. Yuan;H. H. Zhang;G. Zhao;Z. G. Zhao;B. S. Zou

Physical Review D - Particles, Fields, Gravitation and Cosmology

2015-11-9