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, E. 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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52 Scopus citations

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
StatePublished - Oct 27 1994
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Ramberg, E. J., Bock, G. J., Coleman, R., Crisler, M., Enagonio, J., Ford, R., Hsiung, Y. B., Jensen, D. A., Tschirhart, R., Arisaka, K., Roberts, D., Slater, W., Weaver, M., Briere, R. A., Cheu, E., Harris, D. A., Krolak, P., Makoff, G., McFarland, K. S., ... 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