Measurement of the Panofsky Ratio by the Method of Gamma-Gamma Coincidences

Dunaitsev, A.F.; Pantuev, V.S.; Prokoshkin, Yu.D.; Syao-Wei, Tang; Khachaturyan, M.N.

doi:10.7498/aps.18.218

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2002

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“…In addition, large anisotropies and forward-backward asymmetries in the pion angular distributions were observed which was interpreted as a strong contribution of partial waves with Sp final states. From the measurement of the np → ppπ − cross section, σ 01 was obtained using existing pp → ppπ 0 data [18,19,20,21,22]. It was found to be of the same order as σ 11 in the energy range between 315 MeV and 400 MeV.…”

Section: Former Experimentsmentioning

confidence: 99%

Analysing power for the reaction $\mathrm{np} \rightarrow \mathrm{pp} \pi^{-}$ and for np elastic scattering from 270 to 570 MeV

et al. 2002

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Abstract. The analysing power of the reaction np → ppπ − for neutron energies between threshold and 570 MeV has been determined using a transversely polarised neutron beam at PSI. The reaction has been studied in a kinematically complete measurement using a time-of-flight spectrometer with large acceptance. Analysing powers have been determined as a function of the c.m. pion angle in different regions of the proton-proton invariant mass. They are compared to other data from the reactions np → ppπ − and pp → ppπ 0 . The np elastic scattering analysing power was determined as a by-product of the measurements.

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Section: Former Experimentsmentioning

confidence: 99%