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研究生: 曾柏彥
Tseng, Po-Yan
論文名稱: 暗物質有效作用力的總體限制
Global Constraints on Effective Dark Matter Interactions
指導教授: 張敬民
Cheung, Kingman
口試委員: 張敬民
Cheung, Kingman
朱創新
Chu, Chong-Sun
耿朝強
Geng, Chao-Qiang
張維甫
Chang, We-Fu
李湘楠
Li, Hsiang-nan
侯維恕
Hou, Wei-Shu
阮自強
Yuan, Tzu-Chiang
蔣正偉
Chiang, Cheng-Wei
學位類別: 博士
Doctor
系所名稱: 理學院 - 物理學系
Department of Physics
論文出版年: 2013
畢業學年度: 101
語文別: 英文
論文頁數: 144
中文關鍵詞: 暗物質有效作用力實驗限制
外文關鍵詞: effective interaction, PAMELA, Fermi-LAT, antiproton, anti-matter, XENON100
相關次數: 點閱:3下載:0
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  • 有效作用力近似的方法可以描述自旋為0或1/2暗物質和標準模型粒子的相互作用力。有效作用力近似適用於某些理論模型,這些模型中的作用力介質必須有相對較重的質量。另外,質量輕且具有電偶極或磁偶極的暗物質可以用來解釋CoGeNT、DAMA和CRESST實驗中觀測到的事件數大於背景所給的預測的結果,且減弱XENON100所給的限制。這些上述所介紹的暗物質的影響會在本文詳細討論。例如,暗物質和原子核的散射節面對於直接量測實驗、暗物質在對撞機中的產生節面、暗物質互相湮滅率對於間接量測實驗、和暗物質在太陽中的捕捉率與湮滅率對於太陽微中子實驗。在這份文章中,上述暗物質的作用力強度將會被各類的暗物質實驗所限制並且給出上限或下限的大小。


    The effective interaction approach can describe the interaction between spin 0 and 1/2 dark matter and standard-model particles.
    The effective operator approach can be applied for those models in which the mass of the exchange force mediator are heavy.
    A light dark matter possess the magnetic or electric
    dipole moment can explain the event excess in the CoGeNT, DAMA, and CRESST, and mitigate the constraint from XENON100 due to the divergence of the dark matter-nucleus cross section at the low energy.
    The effects of these dark matter are studied.
    The dark matter-nucleus cross section for direct detection, the dark matter production cross section at the hardron
    colliders, the dark matter annihilation rate for indirect detection, and the
    dark matter capture and annihilation rate at Sun for solar neutrino experiments are considered in the contents.
    The interaction strengths of these dark matter have been constrained by the many sorts of dark matter experiments,
    and the limits for the interaction strengths are given in this work.

    Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . 1 2 Effective Dark Matter Interactions . . . . . . . . . . 7 2.1 Effective Dark Matter Interactions . . . . . . . . . 12 2.2 Velocity dependence in the non-relativistic limits . 18 2.3 Relic density . . . . . . . . . . . . . . . . . . . .21 2.4 Direct detection . . . . . . . . . . . . . . . . . . 23 2.5 Monojet and Monophoton production at Colliders . . . 30 2.6 Indirect Detection: Gamma-ray flux . . . . . . . . . 33 2.7 Indirect Detection: Anti-Proton flux . . . . . . . . 45 2.8 Combined analysis . . . . . . . . . . . . . . . . . 52 3 Dark Matter with Dipole Moments . . . . . . . . . . . 59 3.1 Direct Detection Event Rate of MDM and EDM DM. . . . 62 3.2 MDM-Nucleus Cross Section . . . . . . . .. . . . . . 65 3.3 The Constraints of MDM and EDM DM from SI Experiments 68 3.4 The Constraints of MDM DM from SD Experiments . . . . 71 3.5 Dipole Moment Dark Matter at LHC . . . . . . . . . . 79 3.6 The constraints from neutrino experiments IceCube and Super-Kamiokande . . . . . . . . . . . . . . . . . . . . 93 3.7 The Constraints from Fermi-LAT Gamma-ray . . . . . . 99 4 Conclusion and Outlook . . . . . . . . . . . . . . . 105 A Annihilation cross section formulas . . . . . . . . . 113 B The ratio of the cross section of MDM and conventional SI under the monojet constraint in collider . . . . . . . . 117 C Direct Detection . . . . . . . . . . . . . . . . . . . 125 C.1 DM-Nucleus Elastic Scattering Kinematic . . . . . . 125 C.2 Velocity Distribution of DM . . . . . . . . . . . . 126 C.3 Nucleus Form Factor . . . . . . . . .. . . . . . . . 127 C.4 Event Rate . . . . . . . . . . . . . . . . . . . . . 128 C.5 Annual Modulation Effects of Direct Detection. . . . 130

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