Nucleon-nucleon partial-wave analysis to 1 GeV

Abstract

A partial-wave analysis of N N elastic scattering data has been completed. This analysis covers an expanded energy range, from threshold to a laboratory kinetic energy of 2.5 GeV, in order to include recent elastic pp scattering data produced by the EDDA collaboration at COSY. The results of both single-energy and energy-dependent analyses are described.

An energy dependent phase shift analysis of proton-proton scattering between 700 and 1300 MeV

“…The Arndt et al [3,4] energy dependent PSA from 0 to 1.1 GeV differs considerably from the present PSA results for almost all phase shifts. Note that it makes use of an insufficient data base above 800 MeV, except around 1 GeV.…”

“…Our results in figures 1-13 are compared with the energy dependent PSA of Arndt et al [3] (dotdashed line) and with the results of representative fixed-energy phase shift analyses above 800 MeV (triangles [5], open circles [6], diamonds [7] [3] ; V Analysis of reference [5] ; 0 Analysis of reference [6] ; 0 Analysis of reference [7] ;1 Analysis of reference [8] ; ...... OPE and electromagnetic correction. [4] differ only little from reference [3].…”

“…The angular dependence of the amplitudes is expressed by Legendre polynomial series and partial wave amplitudes aLj (Ref. [12] and formulae (2), (3) in Ref. [1] (4) in Ref.…”

“…Results, their discussion and comparison with other representative analyses [3][4][5][6][7][8] and with the Paris potential predictions [9,10] are presented in section 4. Conclusions are summarized in section 5. Throughout this article we will use a four-index notation and the formalism presented in reference [11].…”

Updated analysis ofNNelastic scattering to 3 GeV

“…The revised solution SP07 provides a much improved fit to these data. [24], FA91 [25], SM86 [26], and SP82 [27] energy-dependent partial-wave analyses. The χ 2 values for the previous solutions correspond to our published results.…”