Study of $\psi(2S)$ decays into $\gamma K^+K^-$ and $\gamma \pi^+\pi^-$
msra(2007)
摘要
Radiative charmonium decays from the BESII sample of 14$\times10^{6}$
$\psi(2S)$-events into two different final states, $\gamma K^+K^-$ and
$\gamma\pi^+\pi^-$, are analyzed. Product branching fractions for
$\psi(2S)\to\gamma X\to \gamma\pi^+\pi^-$, $\gamma K^+K^-$ are given, where
$X=f_2(1270)$, $f_0(1500)$, and $f_0(1710)$ in $\pi^+\pi^-$ and $f_2(1270)$,
$f_2'(1525)$, and $f_0(1700)$ in $K^+K^-$. An angular analysis gives the ratios
of the helicity projections for the $f_2(1270)$ in $\psi(2S)\to\gamma
f_2(1270)\to\gamma\pi^+\pi^-$.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要