High resolution study of the Lambda p final state interaction in the reaction p + p -> K+ + (Lambda p)
arXiv:1003.0290 · doi:10.1016/j.physletb.2010.02.082
Abstract
The reaction pp -> K+ + (Lambda p) was measured at Tp=1.953 GeV and Theta = 0 deg with a high missing mass resolution in order to study the Lambda p final state interaction. The large final state enhancement near the Lambda p threshold can be described using the standard Jost-function approach. The singlet and triplet scattering lengths and effective ranges are deduced by fitting simultaneously the Lambda p invariant mass spectrum and the total cross section data of the free Lambda p scattering.
submitted to Physics Letters B, 10 pages, 3 figures