Polarization of Λ and Λ produced by 800-GeV protons

E. J. Ramberg, G. J. Bock, R. Coleman, M. Crisler, J. Enagonio, R. Ford, Y. B. Hsiung, D. A. Jensen, R. Tschirhart, K. Arisaka, D. Roberts, W. Slater, M. Weaver, R. A. Briere, Elliott C Cheu, D. A. Harris, P. Krolak, G. Makoff, K. S. McFarland, A. RoodmanB. Schwingenheuer, S. Somalwar, Y. W. Wah, B. Winstein, R. Winston, A. R. Barker, E. C. Swallow, E. M. Collins, G. D. Gollin, T. Nakaya, T. Yamanaka, P. Gu, P. Haas, W. P. Hogan, S. Kim, J. N. Matthews, S. S. Myung, S. Schnetzer, G. Thomson, Y. Zou

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Abstract

We have measured the polarization of Λ and Λ hyperons produced by 800 GeV protons on a Be target at a fixed targeting angle of 4.8 mrad. Comparison with previous data at 400 GeV production energy and twice the targeting angle shows no significant energy dependence for the Λ polarization. This is in striking contrast to the energy dependence found for σ+ and Ξ- polarizations. We find no evidence for Λ polarization at 800 GeV.

Original languageEnglish (US)
Pages (from-to)403-408
Number of pages6
JournalPhysics Letters B
Volume338
Issue number2-3
DOIs
Publication statusPublished - Oct 27 1994
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Ramberg, E. J., Bock, G. J., Coleman, R., Crisler, M., Enagonio, J., Ford, R., ... Zou, Y. (1994). Polarization of Λ and Λ produced by 800-GeV protons. Physics Letters B, 338(2-3), 403-408. https://doi.org/10.1016/0370-2693(94)91397-8