Measurement of the p p ---> p p eta total cross-section between 1.265-GeV and 1.5-GeV

The total cross section of the pp--> ppη reaction has been measured at incident proton energies of 1.265, 1.3, 1.4 and 1.5 GeV by detecting the two photons from the η decay in the PINOT spectrometer. The data are compared with other near-threshold measurements and with the predictions of existing theoretical calculations.