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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
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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, ORCIDNumber of authors 79 Source Title European Physical Journal C. - : Springer - ISSN 1434-6044
Roč. 75, č. 3 (2015), s. 126Number 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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