npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Physics: Sae Mulli 2016; 66: 957-961

Published online August 31, 2016

Copyright © New Physics: Sae Mulli.

Weakly Interacting Massive Particles as Dark Matter

약하게 상호작용하는 암흑물질 : 윔프

Ki-Young CHOI*

Institute for Universe and Elementary Particles and Department of Physics, Chonnam National University, Gwangju 61186, Korea


Received: June 28, 2016; Revised: July 13, 2016; Accepted: July 14, 2016

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


The weakly interacting massive particle (WIMP) is a good candidate for dark matter and commonly appears in the beyond standard model, though it has not yet been discovered experimentally. In this review article, we summarize the properties of dark-matter and examine the process of WIMP dark-matter production in the early Universe. Especially, the kinetic properties of the WIMP are closely connected to the small-scale structures in structure formation and evolve differently for adiabatic and isocurvature perturbations. We also review the production of super weakly interacting particles and some theoretical models for it. Finally, we briefly explain the WIMP detection experiments as direct detection, indirect detection, and particle accelerator experiments.

Keywords: Cosmology, Particle physics, Dark matter, WIMP

윔프는 약하게 상호작용하며 질량을 가지고 있는 입자로서 표준모형을 넘어서는 모형에서 잘 나타나지만 아직 발견되지 않은 입자이다. 이 총설논문에서는 윔프가 암흑물질이 되기 위하여 만족해야 하는 여러 가지 특징을 정리하고, 초기 우주에서 윔프 암흑물질이 생성되는 과정에 관하여 알아본다. 특히 윔프의 동적특성은 우주의 거대구조 형성 중 작은 규모의 생성과 양에 밀접한 관계가 있는데, 단열섭동과 등곡률 섭동이 만들어내는 차이에 대하여 살펴본다. 또한 윔프보다 상호작용이 훨씬 작은 수퍼윔프의 경우 그 생성과정과 알려진 모형에 대하여 알아본다. 마지막으로 윔프를 검출하기 위한 방법으로서 직접 검출, 간접 검출, 그리고 입자가속기를 이용한 방법에 관하여 간략히 소개한다.

Keywords: 우주론, 입자물리, 암흑물질, 윔프

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