Measurements of the decaysB0→D¯0pp¯,B0→D¯*0pp¯,B0→D−pp¯π+, andB0→D*−pp¯π+

0 Observation of the φ → π + π − π + π − Decay

Using 11.6 pb of data collected in the energy range 0.984–1.06 GeV by CMD-2 at VEPP-2M, the cross section of the reaction e+e− → π+π−π+π− has been studied. For the first time an interference pattern was observed in the energy dependence of the cross section near the φ meson. The branching ratio of the φ → π+π−π+π− decay double suppressed by the G-parity and OZI rule is measured Br(φ → ππππ) = (...

Observation of the decay + c → − π + π + π 0

M. Ablikim a, M.N. Achasov i,1, S. Ahmed n, M. Albrecht d, A. Amoroso bc,be, F.F. An a, Q. An az,2, J.Z. Bai a, O. Bakina z, R. Baldini Ferroli t, Y. Ban ah, D.W. Bennett s, J.V. Bennett e, N. Berger y, M. Bertani t, D. Bettoni v, J.M. Bian ax, F. Bianchi bc,be, E. Boger z,3, I. Boyko z, R.A. Briere e, H. Cai bg, X. Cai a,2, O. Cakir ar, A. Calcaterra t, G.F. Cao a, S.A. Cetin as, J. Chai be, J...

Theoretical study of the effects of substituent and quadrupole moment on π-π stacking interactions with coronene

Stability of the π-π stacking interactions in the Ben||substituted-coronene and HFBen||substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben and HFBen are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four X groups, and X= NH2, CH3, OH, H, F, CF3, CN and NO). ...

Results from NA 48 / 2 on ππ scattering lengths measurements in K ± → π + π − e ± ν and K ± → π 0 π 0 π ± decays

Decays of the π + π − atom