%0 Journal Article
%A Xu, H.
%A Zhou, Y.
%A Bechstedt, U.
%A Böker, J.
%A Gillitzer, A.
%A Goldenbaum, F.
%A Grzonka, D.
%A Hu, Q.
%A Khoukaz, A.
%A Klehr, F.
%A Lorentz, B.
%A Prasuhn, D.
%A Ritman, J.
%A Schadmand, S.
%A Sefzick, T.
%A Stockmanns, T.
%A Strakovsky, I. I.
%A Täschner, A.
%A Wilkin, C.
%A Workman, R. L.
%A Wüstner, P.
%T Measurement of proton-proton elastic scattering into the Coulomb region at Pbeam = 2.5, 2.8 and 3.2 GeV/c
%J Physics letters / B
%V 812
%@ 0370-2693
%C Amsterdam
%I North-Holland Publ.
%M FZJ-2020-05400
%P 136022 -
%D 2021
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000608167600004
%R 10.1016/j.physletb.2020.136022
%U https://juser.fz-juelich.de/record/889027