Author/Authors :
M. Janousch، نويسنده , , A. Badertscher، نويسنده , , P.F.A. Goudsmit، نويسنده , , H.J. Leisi، نويسنده , , E. Matsinos، نويسنده , , P. Weber، نويسنده , , Z.G. Zhao، نويسنده ,
Abstract :
The differential cross section for π−p elastic scattering shows a pronounced dip at 180° and incident pion laboratory energies around 57 MeV. This is due to the cancellation of the real parts of the s- and p-wave hadronic scattering amplitudes. The first observation of this dip is reported and the potential of exploiting the destructive interference phenomenon is discussed.
