Extending the study of the Higgs sector at the LHC by proton tagging A. B. Kaidalov, V. A. Khoze, A. D. Martin and M. G. Ryskin Eur. Phys. J. C, 33 2 (2004) 261-271 Published online: 04 February 2004 DOI: 10.1140/epjc/s2003-01566-8