2015
DOI: 10.1016/j.physletb.2015.07.008
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The polarization observables T , P , and H and their impact onγppπ0multipoles

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Cited by 31 publications
(42 citation statements)
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“…Therefore, larger discrepancies are not surprising. The other models used recent polarization data from CBELSA/TAPS [3][4][5][6] as well as our precise cross-section data [2] in their fits. Figure 8 shows the dependence on the center-ofmomentum energy W for selected angular bins and the comparison to the model calculations.…”
Section: Resultsmentioning
confidence: 99%
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“…Therefore, larger discrepancies are not surprising. The other models used recent polarization data from CBELSA/TAPS [3][4][5][6] as well as our precise cross-section data [2] in their fits. Figure 8 shows the dependence on the center-ofmomentum energy W for selected angular bins and the comparison to the model calculations.…”
Section: Resultsmentioning
confidence: 99%
“…This led to changes of some of the extracted multipole amplitudes, like E 0+ and E 1+ . An essential conclusion of [5], however, was that inclusion of the new data leads to a significantly better convergence of different fits and therefore to a less model-dependent extraction of partial-wave amplitudes. This is important because the unambiguous determination of multipoles like M 1− , M 2+ , or E 2+ is a prerequisite for the unique determination of baryon resonance parameters.…”
Section: Resultsmentioning
confidence: 99%
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“…To check whether the data themselves can help to reduce discrepancies in different multipole solutions, the SAID, MAID, Bonn-Gatchina and Jülich-Bonn groups teamed up to compare solutions before and after the inclusion of new high-precision π 0 photoproduction data produced at ELSA [1][2][3][4]. The quality of the fits to the new data is similar as shown in Ref.…”
Section: Introductionmentioning
confidence: 99%
“…The variance of all three PWAs summed over all γp → π 0 p multipoles up to L = 4 [5]. The range covered by the new double polarization observables [1][2][3][4] are indicated by shaded areas. Over the largest part of the energy range the new data have enforced an improvement of the overall consistency.…”
Section: Introductionmentioning
confidence: 99%