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Gottschall, M. et al.
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Measurement of the Helicity Asymmetry $E$ for the reaction $ \gamma p\to \pi^0 p$

The CBELSA/TAPS collaboration

Gottschall, M. , Afzal, F. , Anisovich, A.V. , Bayadilov, D. , Beck, R. , Bichow, M. , Brinkmann, K.-Th , Crede, V. , Dieterle, M. , Dietz, F.

2019.

https://doi.org/10.17182/hepdata.100433

https://inspirehep.net/literature/1731795 INSPIREhttps://inspirehep.net/literature/1731795

Abstract (data abstract)

CBELSA/TAPS. Measurement of the Helicity Asymmetry E for the reaction $\gamma p \rightarrow \pi^{0} p$ Individual contributions to the systematic uncertainty are given. These include: - sys,beampol: beam polarization (3.3% uncertainty) - sys,targetpol: target polarization (2% uncertainty) - sys,analysis: obtained from a comparison of the results from different analyses

Figure 11

Data from Figure 11 (and Figure 12)

10.17182/hepdata.100433.v1/t1

Double-polarization observable E for different beam energies from 600 to 2310 MeV
https://www.hepdata.net/record/data/812031yaml https://www.hepdata.net/record/data/812031/csvcsv

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