论文标题
粒子物理过程中2p Pionium的可能表现
Possible manifestation of the 2p pionium in particle physics processes
论文作者
论文摘要
我们建议可以观察到一些粒子物理过程，其中可以观察到激发2p Pionium $ \ mathrm {a}^\ prime_ {2π} $。它们包括$ e^+e^ - \toπ^+π^ - $ nihilation，$ v^0 \toπ^0 \ ell^+^+\ ell^ - $ and $ k^\ pm \ pm \toπ^\toπ^\ pm \ ell^+el^+el^+el^ - $（$ \ \ el = ell = e，el = e，μ$ $）衰减，以及两个nut of nut of nut of nut of nut of nut phopopruction。我们分析了可用的实验数据，并发现它们在某些情况下表明存在2p Pionium，但没有提供确定的证据。
We suggest a few particle physics processes in which excited 2p pionium $\mathrm{A}^\prime_{2π}$ may be observed. They include the $e^+e^-\toπ^+π^-$ annihilation, the $V^0\toπ^0\ell^+\ell^-$ and $K^\pm\toπ^\pm\ell^+\ell^-$ ($\ell=e,μ$) decays, and the photoproduction of two neutral pions from nucleons. We analyze available experimental data and find that they, in some cases, indicate the presence of 2p pionium, but do not provide definite proof.
