Spin Transfer in Exclusive Lambda Production from pp Collisions at 3.67 GeV/c

Details Spin Transfer in Exclusive Lambda Production from pp Collisions at 3.67 GeV/c Spin Transfer in Exclusive Lambda Production from pp Collisions at 3.67 GeV/c

1999-06-23

arxiv.org/abs/nucl-ex/9906011v1

Phys.Rev.Lett. 83 (1999) 1534-1537

Physics

Nuclear Physics

Nuclear Experiment

4 pages, including 4 figures. To be published in PRL

Scientific paper

10.1103/PhysRevLett.83.1534

We report the first polarization transfer measurements for exclusive hyperon production reactions. The normal spin transfer coefficient DNN for pp -> p K+ Lambda is large and negative for forward Lambda production at a beam momentum of 3.67 GeV/c, a result qualitatively consistent with expectations for a mechanism dominated by kaon-exchange and rescattering. The sign of DNN is opposite to that observed in the fragmentation regime for inclusive Lambda production at much higher energies.

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