KLOE和KLOE-2实验上双光子物理和跃迁形状因子的测量

γγ physics and transition form factor measurements at KLOE＼KLOE-2

摘要: 介绍KLOE实验介子达利兹衰变中η|π0介子的跃迁形状因子的测量结果以及在γγ碰撞中η｜γγ衰变宽度的测定.升级后的探测器从2014年11月开始取数，评述了双光子物理的前景.

Abstract: The KLOE results on the measurement of the transition form factors of the η and π0 mesons in  Dalitz decays are presented, and the determination of the Γ(η→γγ) in γγ collisions is also reported. The prospects for γγ physics of the new data-taking, started in November 2014 with the upgraded detector, are reviewed.