Measurement of the average very forward energy as a functioMeasurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at √s=13TeV
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AuthorSirunyan, A. M.; Cabrillo Bartolomé, José Iban; Calderón Tazón, Alicia; Chazín Quero, Bárbara; Duarte Campderros, Jorge; Fernández García, Marcos; Fernández Manteca, Pedro José; García Alonso, Andrea; Gómez Gramuglio, Gervasio; Martínez Rivero, Celso; Martínez Ruiz de Árbol, Pablo; Matorras Weinig, Francisco; Piedra Gómez, Jonatan; Prieels, Cedric Gerald; Rodrigo Anoro, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; Trevisani, Nicolo; Vila Álvarez, Ivan
The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities −6.6<η<−5.2 in proton-proton collisions at a centre-of-mass energy √s=13TeV. The results are presented as a function of the charged particle multiplicity in the region |η|<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.
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