The nature of fast, "leading," π+ mesons in π-N and π-12C interactions at 40 GeV/c
Olimov K. , Yuldashev A. A. , Yuldashev B. S.
It is shown that the sources of the "leading" π+ mesons in 7r~N and π~ηΟ interactions, i.e., those that carry away the largest momentum in an event, are the vector mesons with G parity plus one.