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Title: | 在8 TeV質心能量的質子對撞實驗中尋找Bc介子至Bs介子衰變事件 Search for B c to Bs pi decay from proton-proton colisions at sqrt(s) = 8 TeV |
Authors: | Chiao-Yu Tao 陶巧妤 |
Advisor: | 張寶棣(Pao-Ti Chang) |
Keyword: | 標準模型,大強子對撞機,緊湊渺子線圈,Bc介子,B物理, Standard Model,LHC,CMS,Bc meson,B physics, |
Publication Year : | 2014 |
Degree: | 碩士 |
Abstract: | 本論文經由分析在質心能量8 TeV、累計亮度20.65 fb^(-1)之質子—質子對撞事件下,測量B c to Bs pi衰變。經由分析,我們共觀測到81+-19個事件,此衰變相對於B c to J/psi pi 衰變之衰變比例為(1.7+0.5-0.7(stat.)+-0.5(syst.))x10^3。 We report a search of the decay B c to Bs pi with a data sample of 20.65 fb^(-1) in proton-proton collisions at sqrt(s) = 8 TeV collected by the CMS experiment at the LHC. With 81+- 19 events observed, the ratio of branching fraction, B(B c to Bs pi)/B(B c to J/psi pi) is measured to be (1.7+0.5-0.7(stat.)+-0.5(syst.))x10^3. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57829 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 物理學系 |
Files in This Item:
File | Size | Format | |
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ntu-103-1.pdf Restricted Access | 2.88 MB | Adobe PDF |
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