Measurement of the energy density as a function of pseudorapidity in proton-proton collisions at sqrt(s) = 13 TeVстатья
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Дата последнего поиска статьи во внешних источниках: 26 июня 2019 г.
Аннотация:A measurement of the energy density in proton-proton collisions at a centre-of-mass energy of s√= 13 TeV 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 <η <−5.2 and 3.15 <|η|< 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.