\upsone \RpPb values at \sqrts compared with the corresponding LHCb results , as a function of \ycms. The \RpPb values are also compared to model calculations based on several implementations of nuclear shadowing (EPS09 NLO , EPPS16 and nCTEQ15 ) and on parton coherent energy loss predictions, with or without the inclusion of the EPS09 shadowing contribution  . A theoretical model including a shadowing contribution based on nCTEQ15 nPDFs on top of a suppression induced by comover interactions  is also shown. For the LHCb results, the vertical error bars represent the quadratic sum of the statistical and systematic uncertainties.