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New results on $\Delta G/G$ from COMPASS
The gluon polarisation, $\Delta g/g$, is determined from photon-gluon fusion (PGF) events produced in scattering of 160 GeV polarised muons off polarised deuterons. Two independent methods based on LO QCD are used to extract PGF events: selection of $D$ or $D^{*}$ mesons or a pair of high $p_{t}$ ha...
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| Lenguaje: | eng |
| Publicado: |
2009
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysa.2009.05.040 http://cds.cern.ch/record/1497195 |
| _version_ | 1780926679239098368 |
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| author | Nassalski, Jan P |
| author_facet | Nassalski, Jan P |
| author_sort | Nassalski, Jan P |
| collection | CERN |
| description | The gluon polarisation, $\Delta g/g$, is determined from photon-gluon fusion (PGF) events produced in scattering of 160 GeV polarised muons off polarised deuterons. Two independent methods based on LO QCD are used to extract PGF events: selection of $D$ or $D^{*}$ mesons or a pair of high $p_{t}$ hadrons. In the former we use the data collected in 2002-2004 and 2006 and apply a new method of the signal strength parametrisation. In the latter we select $Q^{2} >$ 1 GeV$^{2}$ region from 2002-2004 data and apply a new method of accounting for background processes. |
| id | cern-1497195 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2009 |
| record_format | invenio |
| spelling | cern-14971952019-09-30T06:29:59Zdoi:10.1016/j.nuclphysa.2009.05.040http://cds.cern.ch/record/1497195engNassalski, Jan PNew results on $\Delta G/G$ from COMPASSParticle Physics - ExperimentThe gluon polarisation, $\Delta g/g$, is determined from photon-gluon fusion (PGF) events produced in scattering of 160 GeV polarised muons off polarised deuterons. Two independent methods based on LO QCD are used to extract PGF events: selection of $D$ or $D^{*}$ mesons or a pair of high $p_{t}$ hadrons. In the former we use the data collected in 2002-2004 and 2006 and apply a new method of the signal strength parametrisation. In the latter we select $Q^{2} >$ 1 GeV$^{2}$ region from 2002-2004 data and apply a new method of accounting for background processes.oai:cds.cern.ch:14971952009 |
| spellingShingle | Particle Physics - Experiment Nassalski, Jan P New results on $\Delta G/G$ from COMPASS |
| title | New results on $\Delta G/G$ from COMPASS |
| title_full | New results on $\Delta G/G$ from COMPASS |
| title_fullStr | New results on $\Delta G/G$ from COMPASS |
| title_full_unstemmed | New results on $\Delta G/G$ from COMPASS |
| title_short | New results on $\Delta G/G$ from COMPASS |
| title_sort | new results on $\delta g/g$ from compass |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.nuclphysa.2009.05.040 http://cds.cern.ch/record/1497195 |
| work_keys_str_mv | AT nassalskijanp newresultsondeltaggfromcompass |