Measurement of the inelastic proton-proton cross section at root s=13 TeV

A measurement of the inelastic proton-proton cross section with the CMS detector at a center-of- massenergy of root s = 13 TeV is presented. The analysis is based on events with energy deposits in the forward calorimeters, which cover pseudorapiditiesof -6.6 4.1 GeV and/or M-Y > 13 GeV, where M-x and M-Y are the masses of the diffractive dissociation systems at negative and positive pseudorapidities, respectively. The results are compared with those from other experiments as well as to predictions from high-energy hadron-hadron interaction models.