Determination of Delta G/G from Open Charm events at COMPASS

One of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, Delta G/G. It is determined from spin asymmetries in the scattering of 160 GeV/c polarised muons on a polarised LiD target. The gluon polarisation is accessed by the selection of ph...

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Detalles Bibliográficos
Autor principal: Koblitz, S.
Lenguaje:eng
Publicado: 2007
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.3204/proc07-01/84
http://cds.cern.ch/record/1044486
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author Koblitz, S.
author_facet Koblitz, S.
author_sort Koblitz, S.
collection CERN
description One of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, Delta G/G. It is determined from spin asymmetries in the scattering of 160 GeV/c polarised muons on a polarised LiD target. The gluon polarisation is accessed by the selection of photon-gluon fusion (PGF) events. A very clean selection of PGF events can be obtained with charmed mesons in the final state. Their detection is based on the reconstruction of D* and D0 mesons in the COMPASS spectrometer. The analysis method for the first measurement of Delta G/G from the open charm channel is described and the result from COMPASS for the 2002-2004 data taking period is presented.
id cern-1044486
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10444862019-09-30T06:29:59Zdoi:10.3204/proc07-01/84http://cds.cern.ch/record/1044486engKoblitz, S.Determination of Delta G/G from Open Charm events at COMPASSParticle Physics - ExperimentOne of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, Delta G/G. It is determined from spin asymmetries in the scattering of 160 GeV/c polarised muons on a polarised LiD target. The gluon polarisation is accessed by the selection of photon-gluon fusion (PGF) events. A very clean selection of PGF events can be obtained with charmed mesons in the final state. Their detection is based on the reconstruction of D* and D0 mesons in the COMPASS spectrometer. The analysis method for the first measurement of Delta G/G from the open charm channel is described and the result from COMPASS for the 2002-2004 data taking period is presented.One of the main goals of the COMPASS experiment at CERN is the determination of the gluon polarisation in the nucleon, Delta G/G. It is determined from spin asymmetries in the scattering of 160 GeV/c polarised muons on a polarised LiD target. The gluon polarisation is accessed by the selection of photon-gluon fusion (PGF) events. A very clean selection of PGF events can be obtained with charmed mesons in the final state. Their detection is based on the reconstruction of D* and D0 mesons in the COMPASS spectrometer. The analysis method for the first measurement of Delta G/G from the open charm channel is described and the result from COMPASS for the 2002-2004 data taking period is presented.arXiv:0707.0175oai:cds.cern.ch:10444862007-07-03
spellingShingle Particle Physics - Experiment
Koblitz, S.
Determination of Delta G/G from Open Charm events at COMPASS
title Determination of Delta G/G from Open Charm events at COMPASS
title_full Determination of Delta G/G from Open Charm events at COMPASS
title_fullStr Determination of Delta G/G from Open Charm events at COMPASS
title_full_unstemmed Determination of Delta G/G from Open Charm events at COMPASS
title_short Determination of Delta G/G from Open Charm events at COMPASS
title_sort determination of delta g/g from open charm events at compass
topic Particle Physics - Experiment
url https://dx.doi.org/10.3204/proc07-01/84
http://cds.cern.ch/record/1044486
work_keys_str_mv AT koblitzs determinationofdeltaggfromopencharmeventsatcompass

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