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Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS
This article discusses a measurement of the gluon polarization in the nucleon, $\Delta g/g$. It concentrates on the most direct and cleanest way, the measurement of double spin asymme- tries of charmed mesons produced in deep inelastic muon-nucleon scattering. The method, the experimental set-up and...
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| Lenguaje: | eng |
| Publicado: |
2009
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| Acceso en línea: | http://cds.cern.ch/record/1495348 |
| _version_ | 1780926606367260672 |
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| author | Pretz, Jörg |
| author_facet | Pretz, Jörg |
| author_sort | Pretz, Jörg |
| collection | CERN |
| description | This article discusses a measurement of the gluon polarization in the nucleon, $\Delta g/g$. It concentrates on the most direct and cleanest way, the measurement of double spin asymme- tries of charmed mesons produced in deep inelastic muon-nucleon scattering. The method, the experimental set-up and the analysis leading to the result $\frac{\Delta g}{g} = −$0.39 $\pm$ 0.24(stat.) $\pm$ 0.11(syst.) at an average gluon momentum fraction $x_{g}\approx$ 0.11 and a scale $\mu^{2}\approx$ 13 GeV$^{2}$ are presented. |
| id | cern-1495348 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2009 |
| record_format | invenio |
| spelling | cern-14953482019-09-30T06:29:59Zhttp://cds.cern.ch/record/1495348engPretz, JörgMeasurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASSParticle Physics - ExperimentThis article discusses a measurement of the gluon polarization in the nucleon, $\Delta g/g$. It concentrates on the most direct and cleanest way, the measurement of double spin asymme- tries of charmed mesons produced in deep inelastic muon-nucleon scattering. The method, the experimental set-up and the analysis leading to the result $\frac{\Delta g}{g} = −$0.39 $\pm$ 0.24(stat.) $\pm$ 0.11(syst.) at an average gluon momentum fraction $x_{g}\approx$ 0.11 and a scale $\mu^{2}\approx$ 13 GeV$^{2}$ are presented.oai:cds.cern.ch:14953482009 |
| spellingShingle | Particle Physics - Experiment Pretz, Jörg Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title | Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title_full | Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title_fullStr | Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title_full_unstemmed | Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title_short | Measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at COMPASS |
| title_sort | measurement of the gluon polarization in the nucleon via spin asymmetries of charmed mesons at compass |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/1495348 |
| work_keys_str_mv | AT pretzjorg measurementofthegluonpolarizationinthenucleonviaspinasymmetriesofcharmedmesonsatcompass |