Vacuum structure in QCD with quark and gluon condensates
May 3, 1994
18 pages
Published in:
- Int.J.Mod.Phys.E 5 (1996) 93-106
e-Print:
- hep-ph/9404255 [hep-ph]
Report number:
- IP-BBSR-94-15
Citations per year
Abstract:
We consider here the vacuum structure in QCD with both quark and gluon condensates and a variational ansatz for the ground state. The method is nonperturbative using only equal time algebra for the field operators. We then find that a constrained energy minimisation of the Hamiltonian leads to a QCD vacuum with both quark and gluon condensates for . Pion decay constant and the charge radius of the pion seem to fix the QCD coupling constant as 1.28. The approach opens up possibilities of relating the mysterious vacuum structure with common place hadronic properties.Note:
- 20 Pages, 2 Figure pages, REVTEX, IP/BBSR/94-15
- vacuum state
- quark: condensation
- gluon: condensation
- quantum chromodynamics
- Lagrangian formalism
- energy: density
- strong interaction: coupling constant
- coupling constant: strong interaction
- pi: decay constant
- decay constant: pi
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