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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2011
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20411723_v2_n1_p_Aad http://hdl.handle.net/20.500.12110/paper_20411723_v2_n1_p_Aad |
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paper:paper_20411723_v2_n1_p_Aad2023-06-08T16:33:06Z Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector 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. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20411723_v2_n1_p_Aad 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 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. |
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 |
publishDate |
2011 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20411723_v2_n1_p_Aad http://hdl.handle.net/20.500.12110/paper_20411723_v2_n1_p_Aad |
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1768543919430172672 |