Observation of the Psi(1(3)D(2)) State in e(+)e(-) -> pi(+)pi(-)gamma chi(c1) at BESIII
BESIII Collaboration
刊名PHYSICAL REVIEW LETTERS
2015
卷号115页码:11803
学科分类Physics
DOI10.1103/PhysRevLett.115.011803
文章类型Article
英文摘要We report the observation of the X(3823) state in the process e(+)e(-) -> pi(+)pi(-) X(3823) pi(+)pi(-)gamma chi(c1) with a statistical significance of 6.2 sigma, in data samples at center-of-mass energies root s = 4.230, 4.260, 4.360, 4.420, and 4.600 GeV collected with the BESIII detector at the BEPCII electron positron collider. The measured mass of the X(3823) state is (3821.7 +/- 1.3 +/- 0.7) MeV/c(2), where the first error is statistical and the second systematic, and the width is less than 16 MeV at the 90% confidence level. The products of the Born cross sections for e(+)e(-) -> pi(+)pi(-) X(3823) and the branching ratio B [X(3823) -> gamma X-c1c2] are also measured. These measurements are in good agreement with the assignment of the X(3823) state as the Psi(1(3)D(2)) charmonium state.
类目[WOS]Physics, Multidisciplinary
收录类别SCI ; EI ; CA
WOS记录号WOS:000357168900003
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被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228631
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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BESIII Collaboration. Observation of the Psi(1(3)D(2)) State in e(+)e(-) -> pi(+)pi(-)gamma chi(c1) at BESIII[J]. PHYSICAL REVIEW LETTERS,2015,115:11803.
APA BESIII Collaboration.(2015).Observation of the Psi(1(3)D(2)) State in e(+)e(-) -> pi(+)pi(-)gamma chi(c1) at BESIII.PHYSICAL REVIEW LETTERS,115,11803.
MLA BESIII Collaboration."Observation of the Psi(1(3)D(2)) State in e(+)e(-) -> pi(+)pi(-)gamma chi(c1) at BESIII".PHYSICAL REVIEW LETTERS 115(2015):11803.
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