K- p amplitudes near the lambda(1520)
1970
20 pages
Published in:
- Phys.Rev.D 1 (1970) 1996-2015,
- Phys.Rev.D 3 (1971) 2297-2297 (erratum)
DOI:
- 10.1103/PhysRevD.1.1996,
- 10.1103/physrevd.3.2297.2 (erratum)
Report number:
- PRINT-69-3003
Citations per year
Abstract: (APS)
K¯0n, Λπ0, and Σ0π0 final-state cross sections and Λπ0 and Σ0π0 polarizations are obtained in K−p interactions, for PK− in the range 350-430 MeV/c, near the Λ(1520) resonance. Two fits to the partial-wave amplitudes have been found, both assuming a standard Breit-Wigner amplitude for the Λ(1520) resonance and a constant-scattering-length D32 isospin-1 amplitude, but differing in their treatment of the S- and P-wave backgrounds. One method used a constant K matrix, the other a momentum-dependent effective-range expansion for the inverse of the K matrix. From the fitted partial waves, an upper limit of 10% is set for an isospin mixing between the Λπ0 and Σ0π0 amplitudes.- k- p: interaction
- interaction: k- p
- final states 3
- n: anti-k
- sigma0: pi0
- lambda: pi0
- final state
- k-: cross section
- polarization
- lambda(1520)
References(22)
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