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

Sirunyan, A. M.
Sanders, Stephen J.
CMS Collaboration
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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.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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2019-05-07
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SpringerOpen
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Sirunyan, A.M., Tumasyan, A., Adam, W. et al. Measurement of the energy density as a function of pseudorapidity in proton–proton collisions at 𝑠√=13TeV. Eur. Phys. J. C 79, 391 (2019). https://doi.org/10.1140/epjc/s10052-019-6861-x
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