Production of charm particles in νN collisions due to weak neutral currents

Associative production of charmed particles in neutrino-nucleon collisions due to neutral weak currents is considered. Angular distribution of jets of charmed hadrons in the νN interactions is obtained in the lowest approximation in the quark-gluon coupling constant, so that the charmed quark-antiquark pair is produced from annihilation of the vector gluon with a virtual Z boson. It is shown that only the P-even dependence on the azimuthal angle PSI arises, as for the P-odd dependence, possible in the general situation, it does vanish. The total cross section of production of charmed particles in the neutrino-nucleon interaction is calculated and the reason for a breaking of the scale invariance is shown