## Abstract

The authors predict the spin-spin correlations A_{nn}, A _{SS}, A_{LS}, A_{SL} and depolarisation parameter D_{NN} for the reaction pp to np pi ^{+} in the geometry for exclusive, in-plane kinematics. Calculations are based on a relativistic and unitary three-body isobar model. The partial-wave isobar amplitudes T _{N alpha from NN} (for alpha =P_{11} and P_{33} pi N quasiparticle interactions) are found by solving coupled Blankenbecler-Sugar integral equations with one-pion-exchange driver terms. Results are presented for several proton-pion angle pairs at T_{lab}=800 MeV and, for one angle pair, also at T_{lab}=500 and 1200 MeV. The correlations are typically large and change rapidly as kinematic conditions are varied. There is a moderate model-dependence in these predictions, as seen by comparing with calculations using heavy-boson-exchange modified partial-wave isobar amplitudes.

Original language | English (US) |
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Article number | 006 |

Pages (from-to) | 475-483 |

Number of pages | 9 |

Journal | Journal of Physics G: Nuclear Physics |

Volume | 8 |

Issue number | 4 |

DOIs | |

State | Published - 1982 |

## All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics
- Physics and Astronomy(all)