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研究生: 楊家威
Yang Chia-Wei
論文名稱: 中子星結構對抗暗物質以及中子衰變時間異常
Neutron star configurations confronting dark matter and neutron lifetime anomaly
指導教授: 林豐利
Lin, Feng-Li
陳樫旭
Chen, Chian-Shu
學位類別: 碩士
Master
系所名稱: 物理學系
Department of Physics
論文出版年: 2020
畢業學年度: 108
語文別: 英文
論文頁數: 46
英文關鍵詞: Neutron star
DOI URL: http://doi.org/10.6345/NTNU202000843
論文種類: 學術論文
相關次數: 點閱:103下載:0
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  • Recently, the observation of the gravitational wave provides a new window
    to investigate neutron stars. By study neutron stars, one can give inspiration to
    nuclear physic and particle physic. On the other hand, the long stand discrepancy
    of neutron lifetime, which describe the inconsistent between two category neutron
    lifetime experiment, could be interpreted by introducing dark matter. Follow this
    ideal, we present our dark model to consist of neutron lifetime discrepancy and
    neutrino mass. And then construct hybrid star using neutron star EoS and dark
    matter model we presented.

    1 Chapter Introduction 1 2 Neutron star 4 2.1 Brief history of neutron star 4 2.1.1 Prediction 4 2.1.2 Discovery 5 2.2 Neutron star structure 7 2.2.1 Inside the neutron star 7 2.2.2 Structure equation of neutron star 10 2.3 Equation of state 11 2.3.1 Ideal Fermi gas 11 2.3.2 Fermion with interaction 14 2.3.3 Approaches for nuclear matter 17 3 Neutron lifetime and Dark matter 24 3.1 Neutron lifetime 24 3.1.1 Theoretical description 24 3.1.2 Neutron lifetime experiments 25 Beam experiment 25 Bottle experiment 26 3.1.3 Result and anomaly 27 3.2 Dark matter 29 3.2.1 Evidence of Dark matter 29 Galaxy rotation curve 29 Gravitational lens 31 3.2.2 Problem of collisionless CDM 31 4 Neutron star mix with dark matter 33 4.1 Model building 33 4.2 Mix with dark matter 35 4.2.1 Two-fluid TOV 35 4.2.2 Applying decay channel in EoS 36 5 Conclusion 42

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