6533b824fe1ef96bd128126c
RESEARCH PRODUCT
A QCD calculation of the pion scalar form factor (σ-term)
Y.l. WuR. BornKarl SchilcherTobias Hurthsubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsPionHigh Energy Physics::LatticeNuclear TheoryScalar (mathematics)High Energy Physics::ExperimentNuclear Experimentdescription
Abstract The scalar pion form factor (also known as σ-term) is calculated from the QCD Green function approach. The result at q 2 = 0 is in excellent agreement with the PCAC prediction. We also present the q 2 -dependence of the form factor which allows us to obtain the scalar radius of the pion as 〈 r 2 〉 π s = 12.6 ± 1.3 GeV −2 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-08-01 | Physics Letters B |