Light mesons at BESIII

Abstract

Abstract. BESIII had accumulated 1.3 × 10 9 J/ψ data samples. Selected results of the light mesons study based on part or full J/ψ samples are presented, including several observed structures around 1.85 GeV/c 2 , partial wave analysis of J/ψ → γηη, measurements of η and η anomalous decays, and a 0 (980) in J/ψ → ppa 0 (980).

Update on nuclear structure effects in light muonic atoms

“…In Table 1 below we present updated results for the individual terms in δ TPE for all 2 ≤ A ≤ 4 hydrogen-like muonic systems, where the results for A = 2, 4 are taken from Refs. [3,4,11], and for A = 3 the results given here are taken from Ref. [6] and supersede it due to Eq.…”