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Correction of beam-beam effects in luminosity measurement in the forward region at CLIC
Procedures for correcting the beam-beam effects in luminosity measurement at CLIC at 3 TeV CM energy are described and tested using Monte Carlo simulations: -> Correction of the angular counting loss due to the combined Beamstrahlung and initial-state radiation (ISR) effects, based on the reconst...
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Lenguaje: | eng |
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2013
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Acceso en línea: | http://cds.cern.ch/record/1507547 |
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author | Lukic, Strahinja |
author_facet | Lukic, Strahinja |
author_sort | Lukic, Strahinja |
collection | CERN |
description | Procedures for correcting the beam-beam effects in luminosity measurement at CLIC at 3 TeV CM energy are described and tested using Monte Carlo simulations: -> Correction of the angular counting loss due to the combined Beamstrahlung and initial-state radiation (ISR) effects, based on the reconstructed velocity of the collision frame of the Bhabha scattering. -> Deconvolution of the luminosity spectrum distortion due to the ISR emission. -> Correction of the counting bias due to the finite calorimeter energy resolution. All procedures were tested by simulation. Bhabha events were generated using BHLUMI, and used in Guinea-PIG to simulate the outgoing momenta of Bhabha particles in the bunch collisions at CLIC. Residual uncertainties after correction are listed in a table in the conclusions. The beam-beam related systematic counting uncertainty in the luminosity peak can be reduced to the order of permille. |
id | cern-1507547 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-15075472019-09-30T06:29:59Zhttp://cds.cern.ch/record/1507547engLukic, StrahinjaCorrection of beam-beam effects in luminosity measurement in the forward region at CLICParticle Physics - ExperimentProcedures for correcting the beam-beam effects in luminosity measurement at CLIC at 3 TeV CM energy are described and tested using Monte Carlo simulations: -> Correction of the angular counting loss due to the combined Beamstrahlung and initial-state radiation (ISR) effects, based on the reconstructed velocity of the collision frame of the Bhabha scattering. -> Deconvolution of the luminosity spectrum distortion due to the ISR emission. -> Correction of the counting bias due to the finite calorimeter energy resolution. All procedures were tested by simulation. Bhabha events were generated using BHLUMI, and used in Guinea-PIG to simulate the outgoing momenta of Bhabha particles in the bunch collisions at CLIC. Residual uncertainties after correction are listed in a table in the conclusions. The beam-beam related systematic counting uncertainty in the luminosity peak can be reduced to the order of permille.LCD-Note-2012-008oai:cds.cern.ch:15075472013 |
spellingShingle | Particle Physics - Experiment Lukic, Strahinja Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title | Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title_full | Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title_fullStr | Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title_full_unstemmed | Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title_short | Correction of beam-beam effects in luminosity measurement in the forward region at CLIC |
title_sort | correction of beam-beam effects in luminosity measurement in the forward region at clic |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/1507547 |
work_keys_str_mv | AT lukicstrahinja correctionofbeambeameffectsinluminositymeasurementintheforwardregionatclic |