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Title: Measurement of the forward charged particle pseudorapidity density in pp collisions at $$\sqrt{s} = 8$$ TeV using a displaced interaction point

Journal Article · · European Physical Journal. C, Particles and Fields
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The pseudorapidity density of charged particles dNch/dη is measured by the TOTEM experiment in proton–proton collisions at √s = 8 TeV within the range 3.9 < η < 4.7 and –6.95 < η < –6.9. Data were collected in a low intensity LHC run with collisions occurring at a distance of 11.25 m from the nominal interaction point. The data sample is expected to include 96–97 % of the inelastic proton–proton interactions. The measurement reported here considers charged particles with pT > 0 MeV/c, produced in inelastic interactions with at least one charged particle in –7 < η < –6 or 3.7 < η < 4.8. The dNch/dη has been found to decrease with |η|, from 5.11 ± 0.73 at η = 3.95 to 1.81 ± 0.56 at η = –6.925. Several Monte Carlo generators are compared to the data and are found to be within the systematic uncertainty of the measurement.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
TOTEM Collaboration
Grant/Contract Number:
AC02-76SF0051
OSTI ID:
1260422
Journal Information:
European Physical Journal. C, Particles and Fields, Vol. 75, Issue 3; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (2)

Measurement of the inclusive energy spectrum in the very forward direction in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV journal August 2017
Prompt atmospheric neutrino fluxes: perturbative QCD models and nuclear effects journal November 2016

Linked Research (3)

Figures / Tables (7)

Fig. 1(p. 4)figure Fig. 1
Fig. 2(p. 4)figure Fig. 2
Fig. 3(p. 5)figure Fig. 3
Fig. 4(p. 6)figure Fig. 4
Fig. 5(p. 8)figure Fig. 5
Table 1(p. 8)table Table 1
Table 2(p. 9)table Table 2

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