Recent results on hadron physics at KLOE

TL;DR

This paper reviews recent KLOE experiment results on fundamental symmetries, dark matter searches, muon g-2 contributions, and QCD anomalies through meson decay and production studies.

Contribution

It presents new analyses of KLOE data addressing dark matter, muon g-2, and QCD anomalies, advancing understanding of beyond Standard Model physics.

Findings

Constraints on dark matter boson properties

Refined estimates of hadronic contributions to muon g-2

Tests of QCD anomaly predictions

Abstract

One of the basic motivations of the KLOE and KLOE-2 collaborations is the test of fundamental symmetries and the search for phenomena beyond the Standard Model via the hadronic and leptonic decays of ground-state mesons and via their production in the fusion of virtual gamma quanta exchanged between colliding electrons and positrons. This contribution includes brief description of results of recent analysis of the KLOE data aimed at (i) the search for the dark matter boson, (ii) determination of the hadronic and light-by-light contributions to the g-2 muon anomaly and (iii) tests of QCD anomalies.