论文标题
$ d \ bar d $，$ s \ bar s $和$ gg \ to f_0，f_2 $中的标量和张量介子
Scalar and tensor mesons in $d\bar d$, $s\bar s$ and $gg\to f_0, f_2$
论文作者
论文摘要
$ b^0 \ to \jpsiπ^+π^ - $，$ b_ {s}^0 \ to \jpsiπ^+π^ - $和$ b_ {s}^0 \ to \ jpsi k^+k^ - $ jpsi jpsi jpsi jpsi jpsi $ jpsi $ j^+k^ - $ jpsi jpsi jpsi $ j^+k^ - $的lhcb数据弹性散射和进一步的数据集。确定$ b _ {（s）} ^0 \ to \ jpsi f_0，f_2 $的分支比率与辐射$ j/ψ$衰减的分支比率进行了比较。高于1500 \，MEV，在$ b _ {（s）} ^0 \ to \ jpsi f_0中只观察到很少的强度，f_2 $衰减，而辐射$ \ jpsi $衰减的强度在1865年达到了1865 \，scalar中的MEV，在2210 \，Mev，Mev中，Mev in Tensor Waver。这种模式被解释为对$ g_0（1865）$和$ g_2（2210）$的胶球解释的进一步支持。
LHCb data on $B^0\to\jpsi π^+π^-$, $B_{s} ^0\to\jpsi π^+π^-$ and $B_{s} ^0\to\jpsi K^+K^-$ are fitted in a coupled-channel analysis jointly with data on radiative $\jpsi$ decays, $ππ$ elastic scattering and further data sets. Branching ratios for $B_{(s)} ^0\to\jpsi f_0,f_2$ are determined and compared to branching ratios from radiative $J/ψ$ decays. Above 1500\,MeV, only little intensity is observed in $B_{(s)} ^0\to\jpsi f_0,f_2$ decays while in radiative $\jpsi$ decays the intensities peak at 1865\,MeV in the scalar, and at 2210\,MeV in the tensor wave. This pattern is interpreted as further support for the glueball interpretation of $G_0(1865)$ and $G_2(2210)$.
