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| 研究生： |
陳鈺衡 Chen, Yu Heng |
|---|---|
| 論文名稱： |
帶電宇宙射線實驗對具複頻道湮滅反應之銀河系暗物質給出的現象學限制 Constraints on Galactic Dark Matter with multi-annihilation channels from charged cosmic-ray |
| 指導教授： |
張敬民
Cheung, Kingman |
| 口試委員: |
耿朝強
Geng, Chao-Qiang 張維甫 Chang, We-Fu 徐百嫻 Hsu, Pai-Hsien |
| 學位類別： |
碩士 Master |
| 系所名稱： |
理學院 - 物理學系 Department of Physics |
| 論文出版年： | 2015 |
| 畢業學年度： | 104 |
| 語文別： | 英文 |
| 論文頁數： | 19 |
| 中文關鍵詞： | 暗物質 、帶電宇宙射線 、天文粒子物理 、粒子物理現象學 |
| 外文關鍵詞： | dark matter, charged cosmic-ray, astroparticle physics, particle physics phenomenology |
| 相關次數： | 點閱：2 下載：0 |
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假設阿爾法磁譜儀觀測到的高能量正電子殘餘及未確認的反質子殘餘皆肇因於暗物質湮滅，此處我們從幾近非模型的角度出發，並為了提供一個更具一般性和不同可能性的分析而引進了暗物質探索中的複頻道迫近方法。從分析結果我們總結出質量在兆電子伏特附近並主要湮滅到正反濤子對的暗物質種類能比較好地解釋資料，並建議暗物質在銀河系中心附近的密度分佈可能高於一般預期。
Assuming that the positron excess and the unconfirmed anti-proton excess in AMS-02 data are both consequences of dark matter annihilations, here we introduce the multi-channel approach in dark matter searching to perform a general analysis on exploring possibilities to describe the data from an almost model-independent perspective. We then conclude that the data show a preference for DM species with τ − τ + dominant channel and Mχ∼1 TeV and suggest a dark matter density distribution with a rather large inner slope.
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