Measurement of thecross section near threshold
- 1 March 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 53 (3) , R1052-R1056
- https://doi.org/10.1103/physrevc.53.r1052
Abstract
The cross section for the reaction has been measured using tagged photons in the threshold region (144.7-169.3 MeV). The total cross section, augmented by angular distribution information, is used to deduce the -wave multipole . Extrapolation to threshold yields , in disagreement with earlier estimates. Suppression of near the threshold is confirmed, in approximate agreement with recent calculations.
Keywords
This publication has 9 references indexed in Scilit:
- Igloo: a neutral pion spectrometer for low energy photoproduction studiesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1995
- Comparing thep-wave multipoles forπ0photoproduction with low-energy predictionsPhysical Review C, 1995
- The photon tagging facility at the Saskatchewan Accelerator LaboratoryNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1993
- Threshold pion photoproduction on nucleonsJournal of Physics G: Nuclear and Particle Physics, 1992
- p(γ,) cross section and the low energy theoremPhysical Review C, 1991
- Measurement of the p(γ,π^{0}) cross section at thresholdPhysical Review Letters, 1990
- Energy-independent multipole analysis of π0, π+ and π− photoproduction in the first resonance regionNuclear Physics B, 1972
- An energy-independent multipole analysis of pion photoproduction on protons below 450 MeVNuclear Physics B, 1971
- An improvement on the Kroll-Ruderman theoremNuclear Physics B, 1970