Journal Article FZJ-2013-04273

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Erratum: Test of Low-Energy Theorems for 1H(γ⃗,π0)1H in the Threshold Region [Phys. Rev. Lett. 87, 232501 (2001)]

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2013
APS College Park, Md.

Physical review letters 110(3), 039903 () [10.1103/PhysRevLett.110.039903]

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Abstract: The photon asymmetry in the reaction p(\vec{\gamma},\pi^{0})p close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized photons from the tagged-photon facility at the Mainz Microtron MAMI. The total and differential cross sections were also measured simultaneously with the photon asymmetry. This allowed determination of the S-wave and all three P-wave amplitudes. The low-energy theorems based on the parameter-free third-order calculations of heavy-baryon chiral perturbation theory for P1 and P2 agree with the experimental values.

Keyword(s): photon p: inelastic scattering ; photon: polarized beam ; photon: tagged beam ; pi0: photoproduction ; threshold ; low-energy theorem ; cross section ; scattering amplitude ; partial wave analysis: multipole ; polarization: asymmetry ; perturbation theory: chiral ; spectrometer: experimental results ; Mainz Linac

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Note: 14 pages Latex including 3 figures and 1 table

Contributing Institute(s):
  1. Experimentelle Hadrondynamik (IKP-2)
  2. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
Research Program(s):
  1. 531 - Hadron Structure and Dynamics (HSD) (POF2-531) (POF2-531)

Appears in the scientific report 2013
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 Record created 2013-09-13, last modified 2024-07-11