標題: 大氣微中子之振盪與簡併性之消除
The lifting of degeneracy in atmospheric neutrino oscillations.
作者: 張鑑源
Jian-Yuan Chang
林貴林
Guey-Lin Lin
物理研究所
關鍵字: 微中子;neutrino
公開日期: 2005
摘要: 由超級神岡﹙Super-K﹚實驗與索德柏立微中子觀測站﹙SNO﹚實驗的結果提供了重要的證據,可以證實微中子其實是具有質量的,而且不同類型的微中子之間會相互轉換。然而目前仍然存在著許多微中子的問題,等待著我們持續深入研究,我們知道在微中子混合矩陣中具有許多的微中子振盪參數,但是由於部分的振盪參數具有簡併性,因此讓我們很困難獲得單一數值的振盪參數,在此篇碩士論文中,我們會計算出穿透地球的大氣微中子流量,而我們的研究目標就是探討在大氣微中子振盪中,不同的微中子類型是否分別具有簡併性之消除,我們發現e微中子會發生簡併性之消除,但是其它微中子則不會發生。
The Super Kamiokande﹙Super-K﹚experiment and the Sudbury Neutrino Observatory﹙SNO﹚experiment have provided important evidences for neutrino oscillation and the existence of neutrino mass. It is well known that there are several neutrino oscillation parameters in the lepton mixing matrix. However, it is difficult to determine uniquely the values of the oscillation parameters due to oscillation parameter degeneracies. To achieve more understanding on the lifting of degeneracy in atmospheric neutrino oscillations, the atmospheric neutrino fluxes for neutrinos traversing the earth are discussed in the thesis. We found that the lifting of degeneracy only happens to e neutrino, but does not happen to other neutrinos.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009327506
http://hdl.handle.net/11536/79311
Appears in Collections:Thesis


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