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Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV
We present the initial steps in the measurement of the forward-backward asymmetry ($A_{\rm FB}$) for $\mu^+\mu^-$ pairs produced via an intermediate $Z/\gamma^*$ at $\sqrt{s} = 7$ TeV in the CMS experiment. Our results are based on an integrated luminosity of 198 nb$^{-1}$. The uncorrected forward-...
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| Lenguaje: | eng |
| Publicado: |
2010
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| Acceso en línea: | http://cds.cern.ch/record/1316972 |
| _version_ | 1780921410866118656 |
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| author | Yazgan, Efe |
| author_facet | Yazgan, Efe |
| author_sort | Yazgan, Efe |
| collection | CERN |
| description | We present the initial steps in the measurement of the forward-backward asymmetry ($A_{\rm FB}$) for
$\mu^+\mu^-$ pairs produced via an intermediate $Z/\gamma^*$ at $\sqrt{s} = 7$ TeV in the CMS
experiment. Our results are based on an integrated luminosity of 198 nb$^{-1}$. The uncorrected forward-backward asymmetry is measured to be -0.50$\pm$0.40 in the mass range 40-70 GeV, and 0.14$\pm$0.11 in 70-110 GeV. The measured values are consistent with POWHEG + PYTHIA + full CMS simulation predictions of -0.03 and 0.01 in these two mass bins. |
| id | cern-1316972 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2010 |
| record_format | invenio |
| spelling | cern-13169722019-09-30T06:29:59Zhttp://cds.cern.ch/record/1316972engYazgan, EfeMeasurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeVDetectors and Experimental TechniquesWe present the initial steps in the measurement of the forward-backward asymmetry ($A_{\rm FB}$) for $\mu^+\mu^-$ pairs produced via an intermediate $Z/\gamma^*$ at $\sqrt{s} = 7$ TeV in the CMS experiment. Our results are based on an integrated luminosity of 198 nb$^{-1}$. The uncorrected forward-backward asymmetry is measured to be -0.50$\pm$0.40 in the mass range 40-70 GeV, and 0.14$\pm$0.11 in 70-110 GeV. The measured values are consistent with POWHEG + PYTHIA + full CMS simulation predictions of -0.03 and 0.01 in these two mass bins.CMS-CR-2010-202oai:cds.cern.ch:13169722010-10-29 |
| spellingShingle | Detectors and Experimental Techniques Yazgan, Efe Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title | Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title_full | Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title_fullStr | Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title_full_unstemmed | Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title_short | Measurement of the Forward-backward in $Z/\gamma^* \rightarrow \ell^+\ell^-$ Events in CMS at $\sqrt{s}=7$ TeV |
| title_sort | measurement of the forward-backward in $z/\gamma^* \rightarrow \ell^+\ell^-$ events in cms at $\sqrt{s}=7$ tev |
| topic | Detectors and Experimental Techniques |
| url | http://cds.cern.ch/record/1316972 |
| work_keys_str_mv | AT yazganefe measurementoftheforwardbackwardinzgammarightarrowellelleventsincmsatsqrts7tev |