| Coulomb-nuclear interference in $\pi^{\pm}$ p and $K^{\pm}$ p elastic scattering below 3 GeV: Measurements, real parts and $K^{\pm}$p dispersion relations (2004) | |||||||
Abstract | |||||||
| The differential cross sections for pi /sup +/p elastic scattering at 0.6, 1.0, 1.5, 2.0 GeV/c, for pi /sup -/p at 1.0, 1.5, 2.0 GeV/c, for K/sup +/p at 1.2, 1.8, 2.6 GeV/c and for K/sup -/p at 0.9, 1.2, 1.4, 1.6, 1.8, 2.6 GeV/c have been measured with an overall accuracy of the order of 1 to 2% in an electronics experiment over the angular region corresponding to momentum transfers t between 0.0005 and 0.10 GeV/sup 2/. Making use of the interference effects between the Coulomb and the nuclear interaction, the authors have determined the magnitude and sign of the real part of the scattering amplitude near t=0. The K/sup +or-/p real parts have been used in a dispersion relation to derive the value of the KN Lambda coupling constant. (26 refs). | |||||||
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