Formation of ψ(3700) particles in π-Cu interactions at 50 GeV/c
Antipov Yu. M. , Bezzubov V. A. , Budanov N. P., Gorin Yu. P., Denisov S.P., Klimenko S. V. , Kotov I. V. , Lebedev A. A. , Petrukhin A. I. , Polovnikov S.A. , Roinishvilli V. N., Stoyanova D. A.
The generation cross sections of ψ particles in π Cu interactions have been measured at a momentum of 50 GeV/c. A value of 0.018 + 0.007 has been obtained for the quantity R = σφ.Βφ,__^μ faj^Bj,^^ -.