Charge form factors of the 3He and 3H in hybrid quark hadron model

The charge form factors of 3He and 3H are calculated for 0< or approx.q2< or approx.1 (GeV/c)2 in the hybrid quark hadron (HQH) model. The main parameter is the separation parameter, r0, between the internal quark cluster region and the external hadronic region, where solutions to the Faddeev equations are used. We find r0=1.0 fm for 3He. With no adjustment of parameters the 3H charge form factor is fit quite well, testing the isospin nature of the long-range impulse and pion pair processes. The multiquark cluster contributions play a major role, with the probability for a nucleon to be in a six-quark cluster being about 14%. The six-quark cluster has a radius of 1.2 fm. (orig.)