Partial-wave analysis of $K^+$ nucleon scattering

Details Partial-wave analysis of $K^+$ nucleon scattering Partial-wave analysis of $K^+$ nucleon scattering

2006-11-27

arxiv.org/abs/nucl-th/0611095v2

Phys.Rev.C75:035204,2007

Physics

Nuclear Physics

Nuclear Theory

Modified to add references and minor symbol changes. Accepted for Phys. Rev. C

Scientific paper

10.1103/PhysRevC.75.035204

We have performed a partial-wave analysis of K$^+$-nucleon scattering in the momentum range from 0 to 1.5 GeV/c addressing the uncertainties of the results and comparing them with several previous analyses. It is found that the treatment of the reaction threshold behavior is particularly important. We find a T=0 scattering length which is not consistent with zero, as has been claimed by other analyses. The T=0 phase shifts for $\ell>0$ are consistent with a pure spin-orbit potential. Some indications for the production of a T=0 pentaquark with spin-parity D5/2+ are discussed.

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