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- W2377398015 abstract "An elastic Kπ partial-wave analysis is presented. It is based on high statistics data for the reactions K±p → K±π+n and K±p → K±π−Δ ++ at 13 GeV obtained in a spectrometer experiment performed at SLAC. For each reaction, a t-dependent parametrization of the production amplitudes provides information on both the Kπ mass dependence of the production mechanisms and on Kπ scattering. Knowledge of the t-dependence then allows a calculation of the Kπ partial-wave amplitudes for Kπ masses from 0.7 to 1.9 GeV. The results of such analyses using data for (i) the neutral recoil reactions, (ii) the Δ++ recoil reactions, and (iii) both neutron and Δ++ recoil reactions simultaneously, are presented. Besides the leading JP = 1−, 2+, and 3− resonances at MKπ = 0.896, 1.434, and 1.78 GeV, there is evidence in two of the four possible partial-wave solutions for a broad P-wave resonant-like structure in the region of 1700 MeV. The I = 12 S-wave magnitude rises slowly and smoothly to a maximum near 1400 MeV, but then decreases rapidly between 1400 and 1600 MeV. This structure is strongly indicative of an S-wave resonance near 1450 MeV. The charge-two Kπ reaction is dominated by S-wave scattering with a total cross section decreasing from 4 mb at 0.9 GeV to 2 mb at 1.5 GeV. Both the I = 12 S-wave below 1400 MeV and the I = 32 S-wave are well described by an effective range parametrization." @default.
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- W2377398015 date "1978-02-01" @default.
- W2377398015 modified "2023-10-16" @default.
- W2377398015 title "Study of Kπ scattering using the reactions" @default.
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- W2377398015 doi "https://doi.org/10.1016/0550-3213(78)90238-9" @default.
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