Recall MIT Bag Constant Idea: Quarks inside hadrons feel a vacuum with P=B, p=-B, where B is MIT Bag constant QCD vacuum in hadrons can be phenomenologically described by the B to which the gluon condensate contributes 2021/1/252021/1/25 9 Recall : MIT Bag Constant : Idea: Quarks inside hadrons feel a vacuum with ρ=B, p= -B, where B is MIT Bag constant. QCD vacuum in hadrons can be phenomenologically described by the B, to which the gluon condensate contributes