论文标题
辐射$ j/ψ$衰减中的胶球
Glueballs in Radiative $J/ψ$ Decays
论文作者
论文摘要
标量粘合球在besiii数据辐射$ j/ψ$衰减和更多数据的$ s $波幅度的耦合通道分析中观察到。需要十个标量等速度共振才能拟合数据。其中有五个被解释为主要是单词，其中五个主要是SU中的octet共振（3）。共振的产率显示出惊人的峰值，标量胶球期望的特性。 BESIII数据中的$ D $ WAVE振幅在辐射$ j/ψ$衰减上显示出一种高质量结构，可以由单个Breit-wigner或以三$ ϕ ϕ $共振的总和来描述，很久以前就被解释为张量的粘合球。结构 - 在辐射$ j/ψ$衰减中观察到的进一步的张量共振 - 被暂时解释为张量粘合球。在$ j/ψ$中衰减到$γπ^0π^0η'$中报告了几种共振。讨论了可能隐藏在这些数据中的伪粘液胶球的可能性。
The scalar glueball is observed in a coupled-channel analysis of the $S$-wave amplitude from BESIII data on radiative $J/ψ$ decays and further data. Ten scalar isoscalar resonances were required to fit the data. Five of them were interpreted as mainly-singlet, five as mainly-octet resonances in SU(3). The yield of resonances showed a striking peak with properties expected from a scalar glueball. The $D$ wave amplitude in the BESIII data on radiative $J/ψ$ decays reveales a high-mass structure which can be described by a single Breit-Wigner or by the sum of three $ϕϕ$ resonances interpreted as tensor glueballs a long time ago. The structure - and further tensor resonances observed in radiative $J/ψ$ decays - are tentatively interpreted as tensor glueball. In $J/ψ$ decays into $γπ^0π^0η'$ several resonances are reported. The possibility is discussed that the pseudoscalar glueball might be hidden in these data.
