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

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The CMS Collaboration , Eerola , P , Kirschenmann , H , Voutilainen , M , Havukainen , J , Heikkila , J K , Jarvinen , T , Kinnunen , R , Lampen , T , Lassila-Perini , K , Laurila , S , Lehti , S , Linden , T , Luukka , P , Maenpaa , T , Siikonen , H , Tuominen , E , Tuominiemi , J , Sirunyan , A M , Karimäki , V , Tuuva , T , Österberg , K , Garcia , F & Pekkanen , J 2019 , ' 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 ' , European Physical Journal C. Particles and Fields , vol. 79 , no. 11 , 893 . https://doi.org/10.1140/epjc/s10052-019-7402-3

Title: 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
Author: The CMS collaboration; Eerola, P.; Kirschenmann, H.; Voutilainen, M.; Havukainen, J.; Heikkila, J. K.; Jarvinen, T.; Kinnunen, R.; Lampen, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Sirunyan, A. M.; Karimäki, V.; Tuuva, T.; Österberg, K.; Garcia, F.; Pekkanen, J.
Contributor organization: Department of Physics
Helsinki Institute of Physics
Eija Tuominen / Principal Investigator
Date: 2019-11
Language: eng
Number of pages: 23
Belongs to series: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
DOI: https://doi.org/10.1140/epjc/s10052-019-7402-3
URI: http://hdl.handle.net/10138/311077
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.
Subject: 114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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