The measurement of Wγ production in CMS
博士 === 國立中央大學 === 物理研究所 === 98 === The electroweak (EW) theory includes the tri-linear vector boson coupling and well describes the coupling of the photon to the W boson. New physics may affect the self-interactions of vector bosons and alter the kinematic distributions, for example, enhanced cross...
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| Format: | Others |
| Language: | en_US |
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2010
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| Online Access: | http://ndltd.ncl.edu.tw/handle/90953847481101719169 |
| Summary: | 博士 === 國立中央大學 === 物理研究所 === 98 === The electroweak (EW) theory includes the tri-linear vector boson coupling and well describes the coupling of the photon to the W boson. New physics may affect the self-interactions of vector bosons and alter the kinematic distributions, for example, enhanced cross section and higher photon pT excess as compared to the Standard Model. Thus, the measurements of Wγ production provide a good opportunity to test the structure of the non-Abelian character of EW theory. This thesis presents a study for the cross-section measurement of Wγ production with electron and photon in final state at CMS at sqrt(s) = 10 TeV. A data-driven method of estimating background is also shown and the measured cross-section of Wγ production is 12.5 ± 2.0 (syst.) pb.
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