TY  - JOUR
AU  - Xu, H.
AU  - Zhou, Y.
AU  - Bechstedt, U.
AU  - Böker, J.
AU  - Gillitzer, A.
AU  - Goldenbaum, F.
AU  - Grzonka, D.
AU  - Hu, Q.
AU  - Khoukaz, A.
AU  - Klehr, F.
AU  - Lorentz, B.
AU  - Prasuhn, D.
AU  - Ritman, J.
AU  - Schadmand, S.
AU  - Sefzick, T.
AU  - Stockmanns, T.
AU  - Strakovsky, I. I.
AU  - Täschner, A.
AU  - Wilkin, C.
AU  - Workman, R. L.
AU  - Wüstner, P.
TI  - Measurement of proton-proton elastic scattering into the Coulomb region at Pbeam = 2.5, 2.8 and 3.2 GeV/c
JO  - Physics letters / B
VL  - 812
SN  - 0370-2693
CY  - Amsterdam
PB  - North-Holland Publ.
M1  - FZJ-2020-05400
SP  - 136022 -
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000608167600004
DO  - DOI:10.1016/j.physletb.2020.136022
UR  - https://juser.fz-juelich.de/record/889027
ER  -