Improving the Drell–Yan probe of small x partons at the LHC via a k t cut E. G. de Oliveira, A. D. Martin and M. G. Ryskin Eur. Phys. J. C, 73 3 (2013) 2361 Published online: 20 March 2013 DOI: 10.1140/epjc/s10052-013-2361-6