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Production of leading charged particles and leading charged-particle jets at small transverse momenta in $pp$ collisions at $\sqrt{s}=8  TeV$


CMS Collaboration; Khachatryan, V; Sirunyan, A M; Tumasyan, A; Aarrestad, T K; Amsler, C; Canelli, F; Chiochia, V; De Cosa, A; Hinzmann, A; Hreus, T; Kilminster, B; Lange, C; Ngadiuba, J; Pinna, D; Robmann, P; Ronga, F J; Taroni, S; Yang, Y; et al (2015). Production of leading charged particles and leading charged-particle jets at small transverse momenta in $pp$ collisions at $\sqrt{s}=8 TeV$. Physical Review D (Particles, Fields, Gravitation and Cosmology), 92:112001.

Abstract

The per-event yield of the highest transverse momentum charged particle and charged-particle jet, integrated above a given pminT threshold starting at pminT=0.8 and 1 GeV, respectively, is studied in pp collisions at $\sqrt{s}=8  TeV$. The particles and the jets are measured in the pseudorapidity ranges $\mid \eta \mid$ < 2.4 and 1.9, respectively. The data are sensitive to the momentum scale at which parton densities saturate in the proton, to multiple partonic interactions, and to other key aspects of the transition between the soft and hard QCD regimes in hadronic collisions.

Abstract

The per-event yield of the highest transverse momentum charged particle and charged-particle jet, integrated above a given pminT threshold starting at pminT=0.8 and 1 GeV, respectively, is studied in pp collisions at $\sqrt{s}=8  TeV$. The particles and the jets are measured in the pseudorapidity ranges $\mid \eta \mid$ < 2.4 and 1.9, respectively. The data are sensitive to the momentum scale at which parton densities saturate in the proton, to multiple partonic interactions, and to other key aspects of the transition between the soft and hard QCD regimes in hadronic collisions.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:19 February 2015
Deposited On:18 Feb 2016 13:24
Last Modified:14 Feb 2018 11:22
Publisher:American Physical Society
ISSN:1550-7998
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1103/PhysRevD.92.112001
Other Identification Number:arXiv:1507.00233v2

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