CORRELATIONS BETWEEN CUSPS IN DIFFERENTIAL CROSS SECTIONS AND IN POLARIZATIONS
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
Partial waves with 1> 1 appear in pi /sup -/ + p yields LAMBDA + K/ sup 0/ at the SIGMA K thresholds. This necessitates a reconsideration of the criteria sufficient to determine the SIGMA LAMBDA parity P( SIGMA LAMBDA ) by the method of cusps. The usual assumption that contributions which show a cusp in either of the differential cross section or the polarization may be ignored beyond some optimal power in cos theta is made. On this sole basis, previously stated criteria are rendered inadequate due to the occurrence of Minami and other ambiguities. It is shown that under suitable circumstances there exist unambiguous correlations between certain properties of cross-section cusps and of polarization cusps. These correlations could possibly be of use to determine P( SIGMA LAMBDA ) and give information as to which states contribute significantly to the LAMBDA K production at approximately 900 Mev. The finite separation between SIGMA /sup 0/K/sup 0/ and SIGMA /sup -/K/sup +/ thresholds is taken into account. The results are summarized in a table of cusp properties. (auth)
- Research Organization:
- Inst. for Advanced Study, Princeton, N.J.
- NSA Number:
- NSA-15-026876
- OSTI ID:
- 4000077
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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