Soft Gluons and the Energy Dependence of Total Cross-Sections

We discuss the high energy behaviour of total cross-sections for protons and photons, in a QCD based framework with particular emphasis on the role played by soft gluons. 1 Talk given by G.P. at QCD@work, International Workshop on QCD, Martina Franca, Italy, June 1620,2001 Soft Gluons and the Energy Dependence of Total Cross-Sections R. M. Godbole∗, A. Grau, G. Pancheri∗∗ and Y. N. Srivastava ∗Centre for Theoretical Studies, Indian Institute of Science, Bangalore, 560 012, India †Centro Andaluz de Física de Partículas Elementales and Departamento de Física Teórica y del Cosmos, Universidad de Granada, Spain ∗∗INFN Frascati National Laboratories, Via E. Fermi 40, I00044 Frascati, Italy ‡INFN, Physics Department, University of Perugia, Perugia, Italy Abstract. We discuss the high energy behaviour of total cross-sections for protons and photons, in a QCD based framework with particular emphasis on the role played by soft gluons. We discuss the high energy behaviour of total cross-sections for protons and photons, in a QCD based framework with particular emphasis on the role played by soft gluons.