Sirunyan, A. M.Tumasyan, A.Adam, W.Ambrogi, F.Asilar, E.Bergauer, T.Brandstetter, J.2025-03-232025-03-2320191434-60441434-6052https://doi.org/10.1140/epjc/s10052-019-6861-xhttps://hdl.handle.net/11486/5283A measurement of the energy density in proton-proton collisions at a centre-of-mass energy of sTeV is presented. The data have been recorded with the CMS experiment at the LHC during low luminosity operations in 2015. The energy density is studied as a function of pseudorapidity in the ranges -6.6<<-5.2 and 3.15<<5.20. The results are compared with the predictions of several models. All the models considered suggest a different shape of the pseudorapidity dependence compared to that observed in the data. A comparison with LHC proton-proton collision data at s=0.9 and 7 TeV confirms the compatibility of the data with the hypothesis of limiting fragmentation.eninfo:eu-repo/semantics/openAccessInelastic Ep ScatteringLhcAnnihilationModelArticle79510.1140/epjc/s10052-019-6861-x2-s2.0-85065489028Q1WOS:000467693600001Q2