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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/32534| Title: | 量測π0粒子重建效率與尋找Ｂ介子衰變至不可見的粒子 Study of π0 efficiency and Search for B0 decays to invisible final states at Belle |
| Authors: | Chia-Ying Lin 林佳縈 |
| Advisor: | 張寶棣(Paoti Chang) |
| Keyword: | π0重建效率, π0 efficiency,invisible final states, |
| Publication Year : | 2006 |
| Degree: | 碩士 |
| Abstract: | 本篇論文中有兩個主題，第一個主題是利用Ｄ→Ｋπ和Ｄ→Ｋππ0這兩個衰變過程來量測π0粒子在真實數據與模擬數據間相對性的重建效率，第二個主題則是尋找Ｂ介子到不可見粒子的稀有衰變，其衰變分率上限為22×10-5。
本篇論文所使用的數據是由位於日本國家高能加速器中心Ｂ介子工廠(KEKB)的Belle偵測器由不對稱能量的正負電子對撞所得。 There are two topics in this thesis. The first one is the study of the relativeπ0 reconstruction efficiency between data and Monte-Carlo using D →Kπ and D→Kππ0 The other is search result for B0 decays to invisible with one fully reconstructed B meson in the final state. This study is based on a large data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. |
| URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/32534 |
| Fulltext Rights: | 有償授權 |
| Appears in Collections: | 物理學系 |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| ntu-95-1.pdf Restricted Access | 9.92 MB | Adobe PDF |
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