Polarization in elastic proton-proton scattering between 0.86 and 2.74 GeV/c

Proton-proton elastic scattering analyzing power in the 2.16 to 2.28 GeV energy region

“…We compare the energy dependence at two fixed angles with the SATURNE II measurements from [1], BNL results at 1.63 and 2.24 GeV [2], LBL data at 1.70 [3], CERN data at 1.958 GeV [4], and with five KEK data points between 1.784 and 1.850 GeV [5]. All these data were measured with the proton beam energy having a relatively small uncertainty.…”

Absolutepp-elastic cross sections from 492 to 793 MeV

“…Hoffmann et al [8] reported 497. 5 19.75-cm LH2 (liquid hydrogen) target ranged from 6.6 to 8.0 MeV, and so the measurements reported here are averages over +3 to +4 MeV. The energies at the LH2 target center were 491.9, 575.5, 641.6, 728.2, and 793.0 MeV, with an uncertainty of + 1 MeV.…”

“…Event selection cuts on the angular correlations A8 and Ag (Sec. IVB) were usually more than 5 times the rms peak width, but Coulomb multiple scattering has a long tail, and so corrections were calculated and compared with the tails observed in the RSQ histogram (Sec. IV Phase-shift analysis averages many discrete measurements into smooth functions.…”

“…An Ref. [9] [16] [23] [»] [20] [11] [19] [15] [30] [29] [21] [22] [27] [33] [7] [5] [25] [6] [8] [34] [14] [»] experience enables us to identify weaknesses in some of the previous experiments. Therefore previous data are summarized in Table I and discussed below. Many difI'erential cross-section measurements are relative, not absolute; i.e.…”

“…This is not always obvious &om the publications. For example, the data of Albrow et al [5] were entered into the database as absolute, but were in fact normalized to a PSA. The data of Garison et al [6] were entered as absolute, but are normalized to the Saclay PSA.…”