Recent results on hadron physics at KLOE-2

摘要

The KLOE-2 experiment at the Frascati φ?factory ended its data-taking in March 2018 collecting more than 5 fb~(?1)at the φ peak. The new data sample, together with the KLOE one, corresponds to 2.4 ×10~(10)φ and 3.1×10~(8)η meson events. It represents the largest sample ever collected at the φ peak in e ~(+) e ~(?)colliders, allowing to study light mesons with unprecedented statistics. Recent results obtained with KLOE data on hadron physics e.g. – measurement of the running of the fine structure constant below 1 GeV, the combination of hadron cross section measurements with determination of $ a_mu ^{pi pi } $ , the new preliminary η → π~(+)π~(?)limit, and progress in γγ studies – will be presented.