Quark masses
Abstract
In quark gluon theory with very small bare masses, -ψMψ, spontaneous breakdown of chiral symmetry generates sizable masses Mu, Md, Ms, ... We find (Mu + Md) /2 ~ mp/ √6 ~ 312 MeV, and Ms ~ 432 MeV. Scalar densities have well determined non-zero vaccum expectations <0ua0> ≡ <0ψ(x) (λa/2)ψ(x)/0> ~ ƒ;π2Ma, i.e<0ƒ; uo/vb0> ~ 8 × 10-3 (GeV)3 at an SU(3) breaking of the vacuum c' ≡ <0u8>/<0uo0> ~ - 16%
- Publication:
-
Physics Letters B
- Pub Date:
- May 1976
- DOI:
- 10.1016/0370-2693(76)90052-6
- Bibcode:
- 1976PhLB...62...77K