Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at root s=13 TeV

The CMS Collaboration, N. Van Remortel, P. Eerola, H. Kirschenmann, M. Voutilainen, J. Havukainen, J. K. Heikkila, T. Jarvinen, R. Kinnunen, T. Lampen, K. Lassila-Perini, S. Laurila, S. Lehti, T. Linden, P. Luukka, T. Maenpaa, H. Siikonen, E. Tuominen, J. Tuominiemi, A. M. SirunyanV. Karimäki, T. Tuuva, K. Österberg, F. Garcia, J. Pekkanen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities -6.6 <eta <-5.2 in proton-proton collisions at a centre-of-mass energy root s = 13 TeV. The results are presented as a function of the charged particle multiplicity in the region vertical bar eta vertical bar <2. This measurement is sensitive to correlations induced by the underlying event structure over a very wide pseudorapidity region. The predictions of Monte Carlo event generators commonly used in collider experiments and ultra-high energy cosmic ray physics are compared to the data. All generators considered overestimate the fraction of energy going into hadrons.

Original languageEnglish
Article number893
JournalEuropean Physical Journal C. Particles and Fields
Volume79
Issue number11
Number of pages23
ISSN1434-6044
DOIs
Publication statusPublished - Nov 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 114 Physical sciences

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