Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC

We compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF f...

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Detalles Bibliográficos
Autor principal: Watt, G.
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP09(2011)069
http://cds.cern.ch/record/1362755
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author Watt, G.
author_facet Watt, G.
author_sort Watt, G.
collection CERN
description We compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In particular, we focus on the dependence on the different values of the strong coupling, alpha_S(M_Z^2), used by each group. We also perform a comparison of the relevant quark-antiquark and gluon-gluon luminosity functions. We make some comments on the recent PDF4LHC recommendations. Finally, we discuss the comparison of data and theory for W and Z cross sections at the LHC.
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spelling cern-13627552023-03-14T20:53:18Zdoi:10.1007/JHEP09(2011)069http://cds.cern.ch/record/1362755engWatt, G.Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHCParticle Physics - PhenomenologyWe compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In particular, we focus on the dependence on the different values of the strong coupling, alpha_S(M_Z^2), used by each group. We also perform a comparison of the relevant quark-antiquark and gluon-gluon luminosity functions. We make some comments on the recent PDF4LHC recommendations. Finally, we discuss the comparison of data and theory for W and Z cross sections at the LHC.We compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In particular, we focus on the dependence on the different values of the strong coupling, alpha_S(M_Z^2), used by each group. We also perform a comparison of the relevant quark-antiquark and gluon-gluon luminosity functions. We make some comments on the recent PDF4LHC recommendations. Finally, we discuss the comparison of data and theory for W and Z cross sections at the LHC.arXiv:1106.5788CERN-PH-TH-2011-149CERN-PH-TH-2011-149oai:cds.cern.ch:13627552011-06-30
spellingShingle Particle Physics - Phenomenology
Watt, G.
Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title_full Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title_fullStr Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title_full_unstemmed Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title_short Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
title_sort parton distribution function dependence of benchmark standard model total cross sections at the 7 tev lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP09(2011)069
http://cds.cern.ch/record/1362755
work_keys_str_mv AT wattg partondistributionfunctiondependenceofbenchmarkstandardmodeltotalcrosssectionsatthe7tevlhc

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