$\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?

At the LHC, the measurement of the W mass with a precision of $ O(10) MeV/c^2$ is both mandatory and difficult. In the analysis strategies proposed so far, shortcuts have been made that are justified for proton-antiproton collisions at the Tevatron, but not for proton-proton collisions at the LHC. T...

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Detalles Bibliográficos
Autores principales: Krasny, M.W., Dydak, F., Fayette, F., Placzek, W., Siodmok, A.
Lenguaje:eng
Publicado: 2010
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-010-1417-0
http://cds.cern.ch/record/1259790
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author Krasny, M.W.
Dydak, F.
Fayette, F.
Placzek, W.
Siodmok, A.
author_facet Krasny, M.W.
Dydak, F.
Fayette, F.
Placzek, W.
Siodmok, A.
author_sort Krasny, M.W.
collection CERN
description At the LHC, the measurement of the W mass with a precision of $ O(10) MeV/c^2$ is both mandatory and difficult. In the analysis strategies proposed so far, shortcuts have been made that are justified for proton-antiproton collisions at the Tevatron, but not for proton-proton collisions at the LHC. The root of the problem lies in the inadequate knowledge of parton density functions of the proton. It is argued that in order to reach a $10 MeV/c^2$ precision for the W mass, more precise parton density functions of the proton are needed, and an LHC-specific analysis strategy ought to be pursued. Proposals are made on both issues.
id cern-1259790
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12597902023-03-14T19:44:53Zdoi:10.1140/epjc/s10052-010-1417-0http://cds.cern.ch/record/1259790engKrasny, M.W.Dydak, F.Fayette, F.Placzek, W.Siodmok, A.$\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?Particle Physics - ExperimentAt the LHC, the measurement of the W mass with a precision of $ O(10) MeV/c^2$ is both mandatory and difficult. In the analysis strategies proposed so far, shortcuts have been made that are justified for proton-antiproton collisions at the Tevatron, but not for proton-proton collisions at the LHC. The root of the problem lies in the inadequate knowledge of parton density functions of the proton. It is argued that in order to reach a $10 MeV/c^2$ precision for the W mass, more precise parton density functions of the proton are needed, and an LHC-specific analysis strategy ought to be pursued. Proposals are made on both issues.At the LHC, the measurement of the W mass with a precision of \cal{O}(10) MeV/c^2 is both mandatory and difficult. In the analysis strategies proposed so far, shortcuts have been made that are justified for proton-antiproton collisions at the Tevatron, but not for proton-proton collisions at the LHC. The root of the problem lies in the inadequate knowledge of parton density functions of the proton. It is argued that in order to reach a 10 MeV/c^2 precision for the W mass, more precise parton density functions of the proton are needed, and an LHC-specific analysis strategy ought to be pursued. Proposals are made on both issues.arXiv:1004.2597CERN-PH-EP-2010-007TPJU-1-2010CERN-PH-EP-2010-007TPJU-1-2010oai:cds.cern.ch:12597902010-04-16
spellingShingle Particle Physics - Experiment
Krasny, M.W.
Dydak, F.
Fayette, F.
Placzek, W.
Siodmok, A.
$\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title_full $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title_fullStr $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title_full_unstemmed $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title_short $\Delta M_{W}\leq 10 MeV/c^2$ at the LHC: a forlorn hope?
title_sort $\delta m_{w}\leq 10 mev/c^2$ at the lhc: a forlorn hope?
topic Particle Physics - Experiment
url https://dx.doi.org/10.1140/epjc/s10052-010-1417-0
http://cds.cern.ch/record/1259790
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AT dydakf deltamwleq10mevc2atthelhcaforlornhope
AT fayettef deltamwleq10mevc2atthelhcaforlornhope
AT placzekw deltamwleq10mevc2atthelhcaforlornhope
AT siodmoka deltamwleq10mevc2atthelhcaforlornhope

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