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| Hauptseite > Publikationsdatenbank > Measurement of proton-proton elastic scattering into the Coulomb region at Pbeam = 2.5, 2.8 and 3.2 GeV/c |
| Hauptseite > Publikationsdatenbank > Measurement of proton-proton elastic scattering into the Coulomb region at Pbeam = 2.5, 2.8 and 3.2 GeV/c |
| Journal Article | FZJ-2020-05400 |
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2021
North-Holland Publ.
Amsterdam
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Please use a persistent id in citations: http://hdl.handle.net/2128/26593 doi:10.1016/j.physletb.2020.136022
Abstract: The proton--proton elastic differential cross section at very small four momentum transfer squared has been measured at three different incident proton momenta in the range of 2.5 to 3.2 GeV/c by detecting the recoil proton at polar angles close to 90∘. The measurement was performed at COSY with the KOALA detector covering the Coulomb-nuclear interference region. The total cross section σtot, which has been determined precisely, is consistent with previous measurements. The values of the slope parameter B and the relative real amplitude ratio ρ determined in this experiment alleviate the lack of data in the relevant energy region. This precise data on ρ might be an important check for a new dispersion analysis.
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