Tagging the p n -> d phi reaction by backward protons in p d -> d phi p_{sp} processes

Kaptari, L. P.; Kampfer, B.; Semikh, S. S.

Tagging the p n -> d phi reaction by backward protons in p d -> d phi p_{sp} processes

Authors

Kaptari, L. P.

Kampfer, B.

Semikh, S. S.

Description

The reaction p d -> d phi p_{sp} is studied within the Bethe-Salpeter formalism. Under special kinematical conditions (slow backward spectator proton p_{sp} and fast forward deuteron) relevant for forthcoming experiments at COSY, the cross section and a set of polarization observables factorize in the contribution of the pure subprocess p n -> d phi and a contribution stemming from deuteron quantities and kinematical factors. This provides a theoretical basis for studying threshold-near processes at quasi-free neutrons.