We review a number of ideas put forward in favour of the use of a polarised target along with the proposed idea of a fixed-target experiment using the LHC beams -- AFTER@LHC. A number of recent studies have shown that single transverse-spin asymmetries (STSAs) are large enough to be precisely measured in the region accessible with AFTER@LHC, in particular as regards the Drell-Yan process as well as single-pion, isolated-photon and jet production. AFTER@LHC with a polarised target would also be the ideal experimental set-up to measure the gluon Sivers effect via a number of original quarkonium STSA studies. We discuss first figures-of-merit based on simulations for AFTER@LHC with a polarised target.
@article{arxiv.1602.06857,
title = {Physics case for a polarised target for AFTER@LHC},
author = {J. P. Lansberg and M. Anselmino and R. Arnaldi and S. J. Brodsky and V. Chambert and J. P. Didelez and M. G Echevarria and E. G. Ferreiro and F. Fleuret and Y. Gao and B. Genolini and C. Hadjidakis and I. Hrivnacova and D. Kikola and A. Kurepin and C. Lorce and L. Massacrier and A. Nass and C. Pisano and I. Schienbein and M. Schlegel and E. Scomparin and J. Seixas and A. Signori and E. Steffens and N. Topilskaya and B. Trzeciak U. I. Uggerhoej and A. Uras and R. Ulrich and Z. Yang},
journal= {arXiv preprint arXiv:1602.06857},
year = {2016}
}
Comments
7 pages, 2 figures, 1 table, LaTeX. Proceedings of the XVIth International Workshop in Polarized Sources, Targets, and Polarimetry, PSTP2015, 14-18 September 2015, Bochum, Germany