Measurement of e+e-→π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV
文献类型：期刊论文
| ; | |
| 作者 | BESIII Collaboration |
| 刊名 | Physical Review D
 ; Physical Review D
|
| 出版日期 | 2022 ; 2022 |
| 卷号 | 106期号:5页码:052012 |
| 关键词 | High Energy Physics - Experiment High Energy Physics - Experiment |
| ISSN号 | 2470-0010 ; 2470-0010 |
| DOI | 10.1103/PhysRevD.106.052012 ; 10.1103/PhysRevD.106.052012 |
| 文献子类 | Article ; Article |
| 英文摘要 | Using data samples collected with the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the e+e-→π+π-D+D- process at center-of-mass energies from 4.190 to 4.946 GeV with a partial reconstruction method. Resonance structures are seen and the cross section line shape can be described by the coherent sum of either two Breit-Wigner functions or a Breit-Wigner function and a phase space term. The mass and width of the resonance at about 4.4 GeV are determined to be (4371.6 ±2.5 ±9.2 ) MeV /c2 and (167 ±4 ±29 ) MeV , respectively, which are in agreement with those of the ψ (4360 ) or Y (4390 ) state. The spin-3 D -wave charmonium state X (3842 ) is searched for through the e+e-→π+π-X (3842 )→π+π-D+D- process, and evidence with a significance of 4.2 σ is found in the data samples with center-of-mass energies from 4.6 to 4.7 GeV.; Using data samples collected with the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the e+e-→π+π-D+D- process at center-of-mass energies from 4.190 to 4.946 GeV with a partial reconstruction method. Resonance structures are seen and the cross section line shape can be described by the coherent sum of either two Breit-Wigner functions or a Breit-Wigner function and a phase space term. The mass and width of the resonance at about 4.4 GeV are determined to be (4371.6 ±2.5 ±9.2 ) MeV /c2 and (167 ±4 ±29 ) MeV , respectively, which are in agreement with those of the ψ (4360 ) or Y (4390 ) state. The spin-3 D -wave charmonium state X (3842 ) is searched for through the e+e-→π+π-X (3842 )→π+π-D+D- process, and evidence with a significance of 4.2 σ is found in the data samples with center-of-mass energies from 4.6 to 4.7 GeV. |
| 电子版国际标准刊号 | 2470-0029 ; 2470-0029 |
| 语种 | 英语 ; 英语 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/298852]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | BESIII Collaboration. Measurement of e+e-→π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV, Measurement of e+e-→π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV[J]. Physical Review D, Physical Review D,2022, 2022,106, 106(5):052012, 052012. |
| APA | BESIII Collaboration.(2022).Measurement of e+e-→π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV.Physical Review D,106(5),052012. |
| MLA | BESIII Collaboration."Measurement of e+e-→π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV".Physical Review D 106.5(2022):052012. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。