Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector

The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
proton
article
calculation
dissociation
elasticity
energy
hadron
measurement
scintillation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_20411723_v2_n1_p_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_20411723_v2_n1_p_Aad
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spelling todo:paper_20411723_v2_n1_p_Aad2023-10-03T16:37:50Z Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector Aad, G. proton article calculation dissociation elasticity energy hadron measurement scintillation The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, √s, of 7 TeV using the ATLAs detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic cross-section of 60.3 ± 2.1 mb is measured for ξ> 5×10 -6 , where ξ is calculated from the invariant mass, M x , of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV. © 2011 Macmillan Publishers Limited. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20411723_v2_n1_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic proton
article
calculation
dissociation
elasticity
energy
hadron
measurement
scintillation
spellingShingle proton
article
calculation
dissociation
elasticity
energy
hadron
measurement
scintillation
Aad, G.
Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
topic_facet proton
article
calculation
dissociation
elasticity
energy
hadron
measurement
scintillation
description The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, √s, of 7 TeV using the ATLAs detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic cross-section of 60.3 ± 2.1 mb is measured for ξ> 5×10 -6 , where ξ is calculated from the invariant mass, M x , of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV. © 2011 Macmillan Publishers Limited. All rights reserved.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
title_short Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
title_full Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
title_fullStr Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
title_full_unstemmed Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
title_sort measurement of the inelastic proton-proton cross-section at √s = 7 tev with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_20411723_v2_n1_p_Aad
work_keys_str_mv AT aadg measurementoftheinelasticprotonprotoncrosssectionats7tevwiththeatlasdetector
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