Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC

The first measurements from proton–proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse m...

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Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Exactas
Física
charged-particle
multiplicities
ATLAS detector
large hadron collider
minimum bias
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78518
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78518
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
charged-particle
multiplicities
ATLAS detector
large hadron collider
minimum bias
spellingShingle Ciencias Exactas
Física
charged-particle
multiplicities
ATLAS detector
large hadron collider
minimum bias
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
topic_facet Ciencias Exactas
Física
charged-particle
multiplicities
ATLAS detector
large hadron collider
minimum bias
description The first measurements from proton–proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity, and the relationship between mean transverse momentum and chargedparticle multiplicity are measured for events with at least one charged particle in the kinematic range |η| < 2.5 and pT > 500 MeV. The measurements are compared to Monte Carlo models of proton–proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity at η = 0 is measured to be 1.333 ± 0.003(stat.) ± 0.040(syst.), which is 5–15% higher than the Monte Carlo models predict.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
title_short Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
title_full Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
title_fullStr Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
title_full_unstemmed Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
title_sort charged-particle multiplicities in pp interactions at √s = 900 gev measured with the atlas detector at the lhc
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/78518
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