The relic density of shadow dark matter candidates

被引：13

作者：

Adibzadeh, Mehrdad ^{[1
]}

Hung, P. Q. ^{[1
]}

机构：

[1] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

来源：

NUCLEAR PHYSICS B | 2008年 / 804卷 / 1-2期

关键词：

D O I：

10.1016/j.nuclphysb.2008.06.015

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：

We present the results of relic density calculations for cold dark matter candidates coming from a model of dark energy and dark matter, which is described by an asymptotically free gauge group SU(2)(Z) (QZD) with a coupling constant alpha(Z) similar to 1 at very low scale of Lambda(Z) similar to 10(-3) eV while alpha(Z) similar to weak coupling at high energies. The dark matter candidates of QZD are two fermions in the form of weakly interacting massive particles. Our results show that for masses between 50 and 245 GeV, they can account for either a considerable fraction or the entire dark matter of the Universe. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：223 / 249

页数：27

共 18 条

[1] Particle dark matter: evidence, candidates and constraints [J].

Bertone, G ;

Hooper, D ;

Silk, J .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 405 (5-6) :279-390

[2] CONSTRAINTS ON A SYSTEM OF 2 NEUTRAL FERMIONS FROM COSMOLOGY [J].

BINETRUY, P ;

GIRARDI, G ;

SALATI, P .

NUCLEAR PHYSICS B, 1984, 237 (02) :285-306

[3]

DAS CR, ARXIV07121326

[4]

DAS CR, ARXIV07120253

[5] NUMERICAL-INTEGRATION OF THE DIFFERENTIAL RICCATI EQUATION AND SOME RELATED ISSUES [J].

DIECI, L .

SIAM JOURNAL ON NUMERICAL ANALYSIS, 1992, 29 (03) :781-815

[6] COSMIC ABUNDANCES OF STABLE PARTICLES - IMPROVED ANALYSIS [J].

GONDOLO, P ;

GELMINI, G .

NUCLEAR PHYSICS B, 1991, 360 (01) :145-179

[7] 3 EXCEPTIONS IN THE CALCULATION OF RELIC ABUNDANCES [J].

GRIEST, K ;

SECKEL, D .

PHYSICAL REVIEW D, 1991, 43 (10) :3191-3203

[8] Dark energy and the false vacuum [J].

Hung, P. Q. .

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2007, 40 (25) :6871-6875

[9] A model of dark energy and dark matter [J].

Hung, P. Q. .

NUCLEAR PHYSICS B, 2006, 747 (1-2) :55-87

[10] Low-scale inflation in a model of dark energy and dark matter [J].

Hung, P. Q. ;

Masso, Eduard ;

Zsembinszki, Gabriel .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (12)

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