Color screening, absorption and ${\sigma }_{tot}^{pp}$ at LHC

Abstract

We show that a growth of the proton-proton total cross section with energy can be entirely attributed to the purely perturbative mechanism. The infrared regularization at rather short distances, $R_c\simeq 0.3$ fm, allows to extend the BFKL technique from deep inelastic to hadron-hadron scattering. With the account of the absorption corrections our results are in agreement with the LHC data on ${\sigma }_{tot}^{pp}$.

Comments: 10 pages, 1 figure. arXiv admin note: substantial text overlap with arXiv:1204.1915