Neutron-proton elastic scattering at high energies

The Dipole Pomeron and K+P Elastic Scattering up to 310 GeV/c

“…Of these A,X arid ••s 0 are to be fixed from fits to total cross-sections as may be seen from Eq,.' (10). The parameter b is then obtained by fitting differential cross-sections.…”

“…This suggests that, as is usual in Regge phenomenology, we should set; s 0 =i(GeV) 2 ^^b^-In Refs. [9][10][11][12] the values used for s 0 are (in units of GeV 2 ) 20, 20, 10 and 50 respectively. The use of such large values for s 0 appears "theoretically distasteful" as pointed out by Collins et al…”