Torsion as a dark matter candidate from the Higgs portal

被引：12

作者：

Belyaev, Alexander S. ^{[1
,2
]}

Thomas, Marc C. ^{[1
,2
]}

Shapiro, Ilya L. ^{[3
]}

机构：

[1] Univ S, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] STFC, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[3] Univ Fed Juiz de Fora, Dept Fis ICE, BR-36036330 Juiz De Fora, MG, Brazil

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 09期

基金：

巴西圣保罗研究基金会;

关键词：

PROPAGATING TORSION; RENORMALIZATION; PROGRAM; PHYSICS;

D O I：

10.1103/PhysRevD.95.095033

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Torsion is a metric-independent component of gravitation, which may provide a more general geometry than the one taking place within general relativity. On the other hand, torsion could lead to interesting phenomenology in both particle physics and cosmology. In the present work it is shown that a torsion field interacting with the SM Higgs doublet and having a negligible coupling to standard model (SM) fermions is protected from decaying by a Z(2) symmetry, and therefore becomes a promising dark matter (DM) candidate. This model provides a good motivation for Higgs portal vector DM scenario. We evaluate the DM relic density and explore direct DM detection and collider constraints on this model to understand its consistency with experimental data and establish the most up-to-date limits on its parameter space. We have found in the model when the Higgs boson is only partly responsible for the generation of torsion mass, there is a region of parameter space where torsion contributes 100% to the DM budget of the Universe. Furthermore, we present the first results on the potential of the LHC to probe the parameter space of minimal scenario with Higgs portal vector DM using mono-jet searches and have found that LHC at high luminosity will be sensitive to the substantial part of model parameter space which cannot be probed by other experiments.

引用

页数：10

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