Light scalar mesons in QCD
✍
Stephan Narison
📂
Article
📅
2009
🏛
Elsevier Science
🌐
English
⚖ 254 KB
I present a mini-review of the masses and couplings of the bare (unmixed) light scalar mesons : qq, (qq)(qq), (qq)(qq), gg from QCD spectral sum rules (QSSR) and low-energy theorems (LET) which we compare with recent lattice calculations when available. Some unbiased comments on the different scenar