Light asymmetric dark matter on the lattice: SU(2) technicolor with two fundamental flavors

被引：108

作者：

Lewis, Randy ^{[1
]}

Pica, Claudio ^{[2
]}

Sannino, Francesco ^{[2
]}

机构：

[1] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada

[2] Univ So Denmark, CP3 Origins & Danish Inst Adv Study DIAS, DK-5230 Odense M, Denmark

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

GAUGE-THEORY; 2-COLOR QCD; PHASE; SPECTRUM;

D O I：

10.1103/PhysRevD.85.014504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The SU(2) gauge theory with two massless Dirac flavors constitutes the building block of several models of Technicolor. Furthermore it has also been used as a template for the construction of a natural light asymmetric, or mixed type, dark matter candidate. We use explicit lattice simulations to confirm the pattern of chiral symmetry breaking by determining the Goldstone spectrum and therefore show that the dark matter candidate can, de facto, be constituted by a complex Goldstone boson. We also determine the phenomenologically relevant spin-one and spin-zero isovector spectrum and demonstrate that it is well separated from the Goldstone spectrum.

引用

页数：9

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