Nonuniversality of the vacuum pressure B in hadrons, the dilambda mass, and the nonperturbative gluon contribution to the repulsive NN-interaction core

The value of the vacuum pressure for six-quark systems, B6, is determined from a constraint on the admixture of the 6q bag in the deuteron and from the data on the deuteron magnetic moment. The value turns out to be about two times larger than that for the 3q system: B6/B3 = 1.8--1.9. The masses of the dilambda and the 6q bag with the deuteron quantum numbers are calculated using the MIT and ITEP parametrizations of the bag model and the chiral bag model. The increase of the bag constant B6 increases the dilambda mass by 270--330 MeV. As a result, the dilambda is unbound. The nonuniversality of B leads to an increase of the height of the repulsive NN core from 300 to 700 MeV. For the core height 300 MeV (B6 = B3) the derivative of the NN scattering phase shift in the 3S1 channel changes sign at T/sub lab/≅450 MeV, which contradicts experiment. The behavior of the phase shift in the range 100--700 MeV is found to be in good agreement with the second variant B6>B3