Emerging phenomenology of < A(min)(2)>

We consider phenomenology of the vacuum condensate [A(min)(2)] in SU(2) gau ge theory, where A is the gauge potential. Both physical manifestations and measurements of the condensate are discussed. A two-component picture for the condensate is presented according to which finite values of order Lambd a (2)(QcD) are associated both with large and short distances. We obtain a lower bound on the [A(min)(2)] by considering its change across the phase t ransition. (C) 2001 Published by Elsevier Science B.V.