Transverse Single-Spin Asymmetries in Proton-Proton Collisions at the AFTER@LHC Experiment in a TMD Factorisation Scheme
Our theoretical estimates for versus at GeV and GeV, for inclusive photon production in processes, computed according to (6)–(8) of the text. Only the Sivers effects contributes. The computation is performed adopting the Sivers functions of  (SIDIS 1, left panel) and of  (SIDIS 2, right panel). The overall statistical uncertainty band, also shown, is the envelope of the two independent statistical uncertainty bands obtained following the procedure described in Appendix A of .