Properties of nucleon clusters produced in (p,d)Ta and (p,d) C collisions at momenta of 4.2 and 10 GeV/c per nucleon

The properties of nucleon clusters formed in (p,d)Ta and (p,d)C collisions at momenta of 4.2 and 10 GeV/c per nucleon are investigated using a Lorentz-invariant approach that treats processes of multiparticle production in the space of 4-velocities ui = pi/mi. The basic variables are the dimensionless quantities bik=-(ui-uk)2=2[(uiuk) - 1], where pi and mi are the 4-momenta and masses of particles, respectively. In terms of the similarity parameters bk and xk, the nucleon clusters formed in these interactions are characterized by universal properties, that is, properties independent of the type of colliding particles and the collision energy. The results are compared with earlier data on the production of nucleon clusters in (4He,12C)C collisions at a momentum of 4.2 GeV/c per nucleon and of quark jets in π-p,π-C,pp,bar pp, and bar vN collisions in the momentum interval 22.4 - 205 GeV/c. 9 refs., 8 figs., 5 tabs