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CMS-PAS-FSQ-15-006

Measurement of the pseudorapidity dependence of the energy and transverse energy density in pp collisions at $\sqrt{s}=$ 13 TeV

CMS Collaboration

April 2016

Abstract: The measurement of the energy flow is presented in the pseudorapidity range 3.15 $< |\eta| <$ 6.6 in proton-proton collisions at the LHC for the centre-of-mass energy of $\sqrt{s}=$ 13 TeV. The data have been obtained during several periods of low luminosity operation in 2015. The energy flow, $\mathrm{d}E/\mathrm{d}\eta$, as well as the transverse energy density, $\mathrm{d}E_\mathrm{T}/\mathrm{d}\eta$, are studied as a function of pseudorapidity for soft-inclusive-inelastic and non-single-diffractive-enhanced events. The results are compared to models tuned to describe high-energy hadronic interactions and to earlier pp data at $\sqrt{s}=$ 900 GeV and 7 TeV. Comparison to the earlier data allows to test the hypothesis of the limiting fragmentation.

Links: CDS record (PDF) ; inSPIRE record ; CADI line (restricted) ; These preliminary results are superseded in this paper, EPJC 79 (2019) 391. The superseded preliminary plots can be found here.

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