In:
International Journal of Modern Physics E, World Scientific Pub Co Pte Ltd, Vol. 05, No. 01 ( 1996-03), p. 93-106
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 minimization of the Hamiltonian leads to a QCD vacuum with both quark and gluon condensates for α s 〉 α c =0.62. The pion decay constant and the charge radius of the pion seem to fix the QCD coupling constant α s as 1.28, with the bag pressure given by [Formula: see text] This approach to QCD opens up possibilities of relating the mysterious vacuum structure with common place hadronic properties in a more direct manner.
Type of Medium:
Online Resource
ISSN:
0218-3013
,
1793-6608
DOI:
10.1142/S0218301396000037
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
1996
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