Study of the near-threshold omega phi mass enhancement in doubly OZI-suppressed J/psi -> gamma omega phi decays
BESIII Callaboration
刊名PHYSICAL REVIEW D
2013
卷号87期号:3
关键词DETECTOR BESIII
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.87.032008
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要A 2:25 x 10(8) J/psi event sample accumulated with the BESIII detector is used to study the doubly Okubo-Zweig-Iizuka-suppressed decay modes J/psi -> gamma omega phi, omega -> pi(+)pi(-)pi(0), phi -> K+K-. A strong deviation (> 30 sigma) from three-body J/psi -> gamma omega phi phase space is observed near the omega phi mass threshold that is consistent with a previous observation reported by the BESII experiment. A partial wave analysis with a tensor covariant amplitude that assumes that the enhancement is due to the presence of a resonance, the X(1810), is performed and confirms that the spin-parity of the X(1810) is 0(++). The mass and width of the X(1810) are determined to be M = 1795 +/- 7(stat)(-5)(+13) (syst) +/- 19(mod) MeV/c(2) and Gamma = 95 +/- 10(stat)(-34)(+21)(syst) +/- 75(mod) MeV/c(2), respectively, and the product branching fraction is measured to be B(J/psi -> gamma X(1810)) x B(X(1810) -> omega phi) = (2.00 +/- 0.08(stat)(-1.00)(+0.45)(syst) +/- 1.30(mod)) x 10(-4). These results are consistent within errors with those of the BESII experiment. DOI: 10.1103/PhysRevD.87.032008
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000315279800001
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被引频次:10[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/311005/213464
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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BESIII Callaboration. Study of the near-threshold omega phi mass enhancement in doubly OZI-suppressed J/psi -> gamma omega phi decays[J]. PHYSICAL REVIEW D,2013,87(3).
APA BESIII Callaboration.(2013).Study of the near-threshold omega phi mass enhancement in doubly OZI-suppressed J/psi -> gamma omega phi decays.PHYSICAL REVIEW D,87(3).
MLA BESIII Callaboration."Study of the near-threshold omega phi mass enhancement in doubly OZI-suppressed J/psi -> gamma omega phi decays".PHYSICAL REVIEW D 87.3(2013).
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