Measurement of the energy density as a function of pseudorapidity in proton–proton collisions at s√=13TeV

(CMS Collaboration) Sirunyan, Albert; Đurić, Senka; Lelas, Damir; Roguljić, Matej; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko; Ferenček, Dinko; Antunović, Željko; Starodumov, Andrey; Brigljević, Vuko; Luetić, Jelena; Kadija, Krešo; Woods, Nate (2019) Measurement of the energy density as a function of pseudorapidity in proton–proton collisions at s√=13TeV. European Physical Journal C: Particles and Fields, 79 . ISSN 1434-6044

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Abstract

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 7TeV confirms the compatibility of the data with the hypothesis of limiting fragmentation.

Item Type:	Article
Uncontrolled Keywords:	High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Division of Experimental Physics
Depositing User:	Vuko Brigljević
Date Deposited:	22 Aug 2019 13:26
URI:	http://fulir.irb.hr/id/eprint/4864
DOI:	10.1140/epjc/s10052-019-6861-x

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