The cosmology of composite inelastic dark matter

被引：63

作者：

Alves, Daniele S. M. ^{[1
,2
]}

Behbahani, Siavosh R. ^{[1
,2
]}

Schuster, Philip ^{[1
]}

Wacker, Jay G. ^{[1
]}

机构：

[1] SLAC Natl Accelerator Lab, Theory Grp, Menlo Pk, CA 94025 USA

[2] Stanford Univ, Stanford Inst Theoret Phys, Stanford, CA 94306 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2010年 / 06期

基金：

美国国家科学基金会;

关键词：

Cosmology of Theories beyond the SM; Technicolor and Composite Models; Beyond Standard Model; MULTIQUARK HADRONS; BARYOGENESIS; PARTICLES; BARYON; MASSES;

D O I：

10.1007/JHEP06(2010)113

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：

Composite dark matter is a natural setting for implementing inelastic dark matter - the O(100 keV) mass splitting arises from spin- spin interactions of constituent fermions. In models where the constituents are charged under an axial U(1) gauge symmetry that also couples to the Standard Model quarks, dark matter scatters inelastically off Standard Model nuclei and can explain the DAMA/LIBRA annual modulation signal. This article describes the early Universe cosmology of a minimal implementation of a composite inelastic dark matter model where the dark matter is a meson composed of a light and a heavy quark. The synthesis of the constituent quarks into dark hadrons results in several qualitatively different configurations of the resulting dark matter composition depending on the relative mass scales in the system.

引用

页数：28

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