DARK-MATTER AND STRUCTURE FORMATION WITH LATE DECAYING PARTICLES

被引：38

作者：

KIM, HB ^{[1
]}

KIM, JE ^{[1
]}

机构：

[1] SEOUL NATL UNIV,DEPT PHYS,SEOUL 151742,SOUTH KOREA

来源：

NUCLEAR PHYSICS B | 1995年 / 433卷 / 02期

关键词：

D O I：

10.1016/0550-3213(94)00406-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Since it became evident that the CDM model for cosmic structure formation predicts smaller power on large scales than observed, many alternatives have been suggested. Among them, the existence of late decaying particle can cure it by delaying the beginning of the matter domination and increasing the horizon length at that time. We discuss the realization of this scenario and present the light neutrino and the light axino as possible examples of a working particle physics model. We point out that the increased power at sub-galaxy scale predicted by this scenario could lead to rich sub-galaxy structures.

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页码：421 / 434

页数：14

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