A Study of the ttbar+jets Background at LHC

A study of \ttb production at Next-to-Leading Order at $\sqrt{s}=14~$TeV using the MC@NLO model is presented. A comparison between MC@NLO and standard Monte Carlo programs with Leading Order treatment of the hard process is performed. The MC@NLO model predicts a dramatic increase of the hard radiati...

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Detalles Bibliográficos
Autores principales: Fang, Y Q, Mellado, B, Paganis, S, Quayle, W, Wu Sau Lan
Lenguaje:eng
Publicado: 2003
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/681549
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author Fang, Y Q
Mellado, B
Paganis, S
Quayle, W
Wu Sau Lan
author_facet Fang, Y Q
Mellado, B
Paganis, S
Quayle, W
Wu Sau Lan
author_sort Fang, Y Q
collection CERN
description A study of \ttb production at Next-to-Leading Order at $\sqrt{s}=14~$TeV using the MC@NLO model is presented. A comparison between MC@NLO and standard Monte Carlo programs with Leading Order treatment of the hard process is performed. The MC@NLO model predicts a dramatic increase of the hard radiation/jets which are not part of the decay of the \ttb system, when compared to PYTHIA. MC@NLO also provides a reasonable description of the subleading radiation. As an application, the MC@NLO \ttb production prediction is used to provide a control background sample for the Vector Boson Fusion $H \ra WW \ra ll\nu\nu$ channel. The sample obtained can be tested against data in the early stages of ATLAS data taking.
id cern-681549
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-6815492019-09-30T06:29:59Zhttp://cds.cern.ch/record/681549engFang, Y QMellado, BPaganis, SQuayle, WWu Sau LanA Study of the ttbar+jets Background at LHCDetectors and Experimental TechniquesA study of \ttb production at Next-to-Leading Order at $\sqrt{s}=14~$TeV using the MC@NLO model is presented. A comparison between MC@NLO and standard Monte Carlo programs with Leading Order treatment of the hard process is performed. The MC@NLO model predicts a dramatic increase of the hard radiation/jets which are not part of the decay of the \ttb system, when compared to PYTHIA. MC@NLO also provides a reasonable description of the subleading radiation. As an application, the MC@NLO \ttb production prediction is used to provide a control background sample for the Vector Boson Fusion $H \ra WW \ra ll\nu\nu$ channel. The sample obtained can be tested against data in the early stages of ATLAS data taking.ATL-PHYS-2004-035ATL-COM-PHYS-2003-043CERN-ATL-COM-PHYS-2003-043oai:cds.cern.ch:6815492003
spellingShingle Detectors and Experimental Techniques
Fang, Y Q
Mellado, B
Paganis, S
Quayle, W
Wu Sau Lan
A Study of the ttbar+jets Background at LHC
title A Study of the ttbar+jets Background at LHC
title_full A Study of the ttbar+jets Background at LHC
title_fullStr A Study of the ttbar+jets Background at LHC
title_full_unstemmed A Study of the ttbar+jets Background at LHC
title_short A Study of the ttbar+jets Background at LHC
title_sort study of the ttbar+jets background at lhc
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/681549
work_keys_str_mv AT fangyq astudyofthettbarjetsbackgroundatlhc
AT melladob astudyofthettbarjetsbackgroundatlhc
AT paganiss astudyofthettbarjetsbackgroundatlhc
AT quaylew astudyofthettbarjetsbackgroundatlhc
AT wusaulan astudyofthettbarjetsbackgroundatlhc
AT fangyq studyofthettbarjetsbackgroundatlhc
AT melladob studyofthettbarjetsbackgroundatlhc
AT paganiss studyofthettbarjetsbackgroundatlhc
AT quaylew studyofthettbarjetsbackgroundatlhc
AT wusaulan studyofthettbarjetsbackgroundatlhc

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