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Measurement of the forward charged particle pseudorapidity density in pp collisions at sqrt(s) = 8 TeV using a displaced interaction point

SYSNO ASEP	0456670
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of the forward charged particle pseudorapidity density in pp collisions at sqrt(s) = 8 TeV using a displaced interaction point
Author(s)	Antchev, G. (BG) Aspell, P. (CH) Atanassov, I. (CH) Kašpar, Jan (FZU-D)_{RID, ORCID} Kopal, Josef (FZU-D) Kundrát, Vojtěch (FZU-D)_{RID, ORCID} Lokajíček, Miloš V. (FZU-D)_{RID, ORCID} Procházka, Jiří (FZU-D)_{RID, ORCID}
Number of authors	79
Source Title	European Physical Journal C. - : Springer - ISSN 1434-6044 Roč. 75, č. 3 (2015), s. 126
Number of pages	9 s.
Language	eng - English
Country	DE - Germany
Keywords	pseudorapidity of charged particles ; forward scattering
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LG13031 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000355667400004
EID SCOPUS	84925086742
DOI	10.1140/epjc/s10052-015-3343-7
Annotation	The pseudorapidity density of charged particles dN(ch)/d η is measured by the TOTEM experiment in pp collisions at sqrt(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 p_T > 0 MeV/c, produced in inelastic interactions with at least one charged particle in -7 < η < -6 or 3.7 < η <4.8 . The dN(ch)/d η 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 MC generators are compared to the data and are found to be within the systematic uncertainty of the measurement.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2016

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