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Phys. Rev. Lett. 76, 22 - 25 (1996)

Study of Λ0 Polarization in pp→pΛ0K+π+π-π+π- at 27.5 GeV

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J. Félix, C. Avilez, and G. Moreno
Instituto de Física, Universidad de Guanajuato, León, Guanajuato 37000, México

E. P. Hartouni, D. A. Jensen, M. N. Kreisler, and J. Uribe
Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003

D. C. Christian, G. Gutierrez, S. D. Holmes, and A. Wehmann
Fermilab, Batavia, Illinois 60510

M. D. Church, E. E. Gottschalk, B. C. Knapp, B. J. Stern, and L. R. Wiencke
Nevis Laboratories, Columbia University, Irvington, New York 10533

M. Forbush, F. R. Huson, and J. T. White
Department of Physics, Texas A&M University, College Station, Texas 77843

Received 11 September 1995

We measured the polarization of 51 195 Λ0's produced in the specific reaction pp→pΛ0K+π+π-π+π- with 27.5 GeV/c protons incident on a liquid hydrogen target. Because the reaction was measured completely, the polarization was studied versus the following: xF (-1 to+1), Λ0 transverse momentum (0 to 1.32 GeV/c), correlations with the momentum vectors of the other particles in the reaction, and the invariant mass of combinations of particles in the final state. The dependence of the polarization on these variables does not always agree with theoretical expectations.


©1996 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.76.22
DOI: 10.1103/PhysRevLett.76.22
PACS: 13.88.+e, 13.85.Hd, 14.20.Jn

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