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LEPTON POLARIZATION IN NEUTRINO-NUCLEON INTERACTIONS Kuzmin K. S., Lyubushkin V. V., Naumov V. A. We derive generic formulas for the polarization density matrix of leptons produced in nN and `nN collisions and briefly consider some important particular cases. Next we employ the general formalism in order to include the final lepton mass and spin into the Rein-Sehgal model for single pion neutrino production. |