Observation of e(+)e(-) -> pi(0)pi(0)h(c) and a Neutral Charmoniumlike Structure Z(c)(4020)(0) | |
BESIII Callaboration | |
2014 | |
发表期刊 | PHYSICAL REVIEW LETTERS (IF:8.462[JCR-2016],7.805[5-Year]) |
ISSN | 0031-9007 |
EISSN | 1079-7114 |
卷号 | 113期号:21页码:212002 |
通讯作者 | Ji, QP (reprint author), Nankai Univ, Tianjin 300071, Peoples R China. |
摘要 | Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of root s = 4.23, 4.26, and 4.36 GeV, we observe e(+)e(-) -> pi(0)pi(0)h(c) for the first time. The Born cross sections are measured and found to be about half of those of e(+)e(-) -> pi(+)pi(-)h(c) within less than 2 sigma. In the pi(0)h(c) mass spectrum, a structure at 4.02 GeV/c(2) is found. It is most likely to be the neutral isospin partner of the Z(c)(4020)(+/-) observed in the process of e(+)e(-) -> pi(+)pi(-)h(c) being found. A fit to the pi(0)h(c) invariant mass spectrum, with the width of the Z(c)(4020)(0) fixed to that of its charged isospin partner and possible interferences with non-Z(c)(4020)(0) amplitudes neglected, gives a mass of (4023.9 +/- 2.2 +/- 3.8) MeV/c(2) for the Z(c)(4020)(0), where the first error is statistical and the second systematic. |
关键词 | Z(C)(3900) |
学科领域 | Physics |
DOI | 10.1103/PhysRevLett.113.212002 |
收录类别 | SCI ; ADS ; INSPIREHEP |
语种 | 英语 |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000345356900003 |
ADS Bibcode | 2014PhRvL.113u2002A |
ADS URL | https://ui.adsabs.harvard.edu/abs/2014PhRvL.113u2002A |
ADS引文 | https://ui.adsabs.harvard.edu/abs/2014PhRvL.113u2002A/citations |
INSPIRE ID | 1318650 |
INSPIRE URL | https://inspirehep.net/literature/1318650 |
引用统计 | 正在获取...
被引频次:140 [INSPIRE]
被引频次:145 [ADS]
|
文献类型 | 期刊论文 |
条目标识符 | https://ir.ihep.ac.cn/handle/311005/213819 |
专题 | 实验物理中心 |
作者单位 | 中国科学院高能物理研究所 |
第一作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | BESIII Callaboration. Observation of e(+)e(-) -> pi(0)pi(0)h(c) and a Neutral Charmoniumlike Structure Z(c)(4020)(0)[J]. PHYSICAL REVIEW LETTERS,2014,113(21):212002. |
APA | BESIII Callaboration.(2014).Observation of e(+)e(-) -> pi(0)pi(0)h(c) and a Neutral Charmoniumlike Structure Z(c)(4020)(0).PHYSICAL REVIEW LETTERS,113(21),212002. |
MLA | BESIII Callaboration."Observation of e(+)e(-) -> pi(0)pi(0)h(c) and a Neutral Charmoniumlike Structure Z(c)(4020)(0)".PHYSICAL REVIEW LETTERS 113.21(2014):212002. |
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