Spin physics with light and heavy neutral mesons at Protvino
  PROZA-M experiment results as well the proposal of a new spin program with the use of a polarized proton beam are presented. Significant asymmetries were observed in inclusive $\pi^0$ production. The new program proposes to study a wealth of single- and double-spin observables in various reactions using longitudinally and transversely polarized proton beams at U70. The main goal is to define gluon contribution to nucleon spin by measuring double-spin asymmetry in charmonium production. 
V.V.Mochalov, S.V.Ivanov, V.I.Garkusha, A.S.Gurevich, V.I.Kravtsov,   O.P.Lebedev, N.I.Minaev, L.V.Nogach, S.B.Nurushev, A.N...