Polarization of Σ0 hyperons in inclusive production from 28.5 GeV/c protons on beryllium

Edmond C. Dukes, Oliver E. Overseth, Gerry M. Bunce, Yousef Makdisi, Peter Yamin, Douglas A. Jensen, Michael N. Kreisler, Martin Marcin, Kamal K. Raychaudhuri, Marilyn W. Sullivan, Kenneth Heller, Mike Shupe

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The polarization of Σ0 hyperons produced in an inclusive reactons hasbeen measured for the first time. From a sample of 11 000 events produced by 28.5 GeV/c ptorons in the reaction p+Be→Σ0+X, the Σ0 polarization has a value of +0.28±0.13 at pt=1.01 GeV/c and xf=0.60. The polarization of 53 000 Λ hyperons produced from 28.5 Gev/c protons inthe reaction p+Be→Λ+X has been measured in the kinematic range 0.64<pt<1.14 GeV/c and 0.42<xf<0.62. The average Λ polarization is found to be -0.188±0.024, consistent with previous results.

Original languageEnglish (US)
Pages (from-to)135-139
Number of pages5
JournalPhysics Letters B
Issue number1
StatePublished - Jul 9 1987

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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