Knowledge Management System of Institute of Theoretical Physics, CAS
| Cheng, Wei1; He, Yuan; Diao, Jing-Wang; Pan, Yu; Zeng, Jun2; Zhang, Jia-Wei | |
| A new way to test the WIMP dark matter models | |
| Source Publication | JOURNAL OF HIGH ENERGY PHYSICS
 |
| Language | 英语 |
| Keyword | LARGE-SCALE STRUCTURE OBSERVATIONAL CONSTRAINTS COSMIC CURVATURE ENERGY EQUATION MASS GALAXIES QUASARS UNIVERSE |
| Abstract | In this paper, we investigate the possibility of testing the weakly interacting massive particle (WIMP) dark matter (DM) models by applying the simplest phenomenological model which introduces an interaction term between dark energy (DE) and WIMP DM, i.e., Q = 3 gamma H-DM rho(DM). In general, the coupling strength gamma(DE) is close to 0 as the interaction between DE and WIMP DM is very weak, thus the effect of gamma(DE) on the evolution of Y associated with DM energy density can be safely neglected. Meanwhile, our numerical calculation also indicates that x(f) approximate to 20 is associated with DM freeze-out temperature, which is the same as the vanishing interaction scenario. As for DM relic density, it will be magnified by 2-3 gamma(DM)/2 [2 pi g(*)m(DM)(3)/(45s(0)x(f)(3))](gamma DM) times, which provides a new way to test WIMP DM models. As an example, we analyze the case in which WIMP DM is a scalar DM. (SGL+SNe+Hz) and (CMB+BAO+SNe) cosmological observations will give gamma(DM) = 0.134(-0.069)(+0.17) and gamma(DM) = -0.0008 +/- 0.0016, respectively. After further considering the constraints from DM direct detection experiment, DM indirect detection experiment, and DM relic density, we find that the allowed parameter space of the scalar DM model will be completely excluded for the former cosmological observations, while it will increase for the latter ones. Those two cosmological observations lead to an almost paradoxical conclusion. Therefore, one could expect more stringent constraints on the WMIP DM models, with the accumulation of more accurate cosmological observations in the near future. |
| 2021 | |
| ISSN | 1029-8479 |
| Issue | 8Pages:124 |
| Cooperation Status | 国内 |
| Subject Area | Physics |
| MOST Discipline Catalogue | Physics, Particles & Fields |
| DOI | 10.1007/JHEP08(2021)124 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27262 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Chongqing Univ Posts & Telecommun, Sch Sci, Chongqing 400065, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China 4.Chongqing Univ Sci & Technol, Dept Phys, Chongqing 401331, Peoples R China |
| Recommended Citation GB/T 7714 | Cheng, Wei,He, Yuan,Diao, Jing-Wang,et al. A new way to test the WIMP dark matter models[J]. JOURNAL OF HIGH ENERGY PHYSICS,2021(8):124. |
| APA | Cheng, Wei,He, Yuan,Diao, Jing-Wang,Pan, Yu,Zeng, Jun,&Zhang, Jia-Wei.(2021).A new way to test the WIMP dark matter models.JOURNAL OF HIGH ENERGY PHYSICS(8),124. |
| MLA | Cheng, Wei,et al."A new way to test the WIMP dark matter models".JOURNAL OF HIGH ENERGY PHYSICS .8(2021):124. |
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