Measurement of pseudorapidity distributions of charged particles in proton-proton collisions at $\sqrt{s}$ = 8 TeV by the CMS and TOTEM experiments

Chatrchyan, Serguei

doi:10.1140/epjc/s10052-014-3053-6

Title: Measurement of pseudorapidity distributions of charged particles in proton-proton collisions at $$\sqrt{s}$$ = 8 TeV by the CMS and TOTEM experiments

Journal Article · Wed Oct 29 00:00:00 EDT 2014 · European Physical Journal. C, Particles and Fields (Online)

DOI:https://doi.org/10.1140/epjc/s10052-014-3053-6· OSTI ID:1234828

Chatrchyan, Serguei ^[1]

Yerevan Physics Inst. (YerPhI) (Armenia). et al.

Pseudorapidity (η) distributions of charged particles produced in proton–proton collisions at a centre-of-mass energy of 8 TeV are measured in the ranges |η|<2.2 and 5.3<|η|<6.4 covered by the CMS and TOTEM detectors, respectively. We found that the data correspond to an integrated luminosity of L=45 μb^-1. These measurements are presented for three event categories. The most inclusive category is sensitive to 91–96 % of the total inelastic proton–proton cross section. The other two categories are disjoint subsets of the inclusive sample that are either enhanced or depleted in single diffractive dissociation events. Finally, the data are compared to models used to describe high-energy hadronic interactions. None of the models considered provide a consistent description of the measured distributions.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1234828

Report Number(s):: FERMILAB-PUB-14-151-CMS; CERN-PH-EP-TOTEM-2014-002; CMS-FSQ-12-026; arXiv eprint number arXiv:1405.0722

Journal Information:: European Physical Journal. C, Particles and Fields (Online), Vol. 74, Issue 10; ISSN 1434-6052

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 49 works

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