Strange particle production from π−p interactions at 1.69 GeV/c

The three-body final states Σ ±π ∓ K 0, Σ 0 π 0 K + and Λπ 0 K +0 produced from πp interactions at 1.69 GeV/ c are examined. The quasi-two-body state Λ(1405)K 0 is discussed in detail. In particular, the spin of Λ(1405) is determined, via the method of Byers and Fenster, to be consistent with 1 2 ....

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Bibliographic Details
Published in:Nuclear physics. B 1973-01, Vol.56 (1), p.15-45
Main Authors: Thomas, D.W., Engler, A., Fisk, H.E., Kraemer, R.W.
Format: Article
Language:English
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Summary:The three-body final states Σ ±π ∓ K 0, Σ 0 π 0 K + and Λπ 0 K +0 produced from πp interactions at 1.69 GeV/ c are examined. The quasi-two-body state Λ(1405)K 0 is discussed in detail. In particular, the spin of Λ(1405) is determined, via the method of Byers and Fenster, to be consistent with 1 2 . The Σ ± π ∓ mass spectrum is compared to that produced by various zero-range and effective-range parametrizations and the Λ(1405) is found to have a mass of 1405 MeV and width of 45–55 MeV. Production and decay characteristics of the quasi-two-body states Σ(1385) 0 K 0 are reported.
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(73)90217-4