scholarly journals Constraints on Pseudo-Nambu-Goldstone dark matter from direct detection experiment and neutron star reheating temperature

2022 ◽  
Vol 824 ◽  
pp. 136822
Author(s):  
Yu-Pan Zeng ◽  
Xiang Xiao ◽  
Wei Wang
Keyword(s):  
Dark Matter ◽  
Neutron Star ◽  
Direct Detection ◽  
Detection Experiment

PandaX: A deep underground dark matter search experiment in China using liquid xenon

2018 ◽  
Vol 33 (30) ◽  
pp. 1830013 ◽  
Author(s):  
Li Zhao ◽  
Jianglai Liu
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Underground Laboratory ◽  
Liquid Xenon ◽  
Detection Experiment ◽  
Dark Matter Search ◽  
The Future ◽  
Search Experiment ◽  
Deep Underground ◽  
Scientific Results

The nature of dark matter is one of the most fundamental scientific unknowns. Particle physicists have spent decades searching for evidence of dark matter particles. The PandaX project is a staged xenon-based dark matter direct detection experiment located at the China Jinping Underground Laboratory. In this paper, we give an overview of the PandaX experiment, discuss its recent scientific results, and outline the plan for the future.

scholarly journals A new way to test the WIMP dark matter models

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Wei Cheng ◽  
Yuan He ◽  
Jing-Wang Diao ◽  
Yu Pan ◽  
Jun Zeng ◽  
...  
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Direct Detection ◽  
Massive Particle ◽  
Indirect Detection ◽  
Detection Experiment ◽  
Cosmological Observations ◽  
Relic Density ◽  
Interaction Term ◽  
Near Future

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 = 3γDMHρDM. In general, the coupling strength γDE is close to 0 as the interaction between DE and WIMP DM is very weak, thus the effect of γDE on the evolution of Y associated with DM energy density can be safely neglected. Meanwhile, our numerical calculation also indicates that xf ≈ 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 $$ \frac{2-3{\upgamma}_{\mathrm{DM}}}{2}{\left[2\pi {g}_{\ast }{m}_{\mathrm{DM}}^3/\left(45{s}_0{x}_f^3\right)\right]}^{\gamma_{\mathrm{DM}}} $$ 2 − 3 γ DM 2 2 π g ∗ m DM 3 / 45 s 0 x f 3 γ 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 γDM = $$ {0.134}_{-0.069}^{+0.17} $$ 0.134 − 0.069 + 0.17 and γDM = −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.

scholarly journals Implications of the XENON1T excess on the dark matter interpretation

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Haider Alhazmi ◽  
Doojin Kim ◽  
Kyoungchul Kong ◽  
Gopolang Mohlabeng ◽  
Jong-Chul Park ◽  
...  
Keyword(s):  
Dark Matter ◽  
Fast Moving ◽  
Direct Detection ◽  
Recent Observation ◽  
Axial Vector ◽  
Detection Experiment ◽  
Electron Recoil ◽  
Coupling Parameters ◽  
Pseudo Scalar ◽  
Parameter Values

Abstract The dark matter interpretation for a recent observation of excessive electron recoil events at the XENON1T detector seems challenging because its velocity is not large enough to give rise to recoiling electrons of $$ \mathcal{O}\left(\mathrm{keV}\right) $$ O keV . Fast-moving or boosted dark matter scenarios are receiving attention as a remedy for this issue, rendering the dark matter interpretation a possibility to explain the anomaly. We investigate various scenarios where such dark matter of spin 0 and 1/2 interacts with electrons via an exchange of vector, axial-vector, pseudo-scalar, or scalar mediators. We find parameter values not only to reproduce the excess but to be consistent with existing bounds. Our study suggests that the scales of mass and coupling parameters preferred by the excess can be mostly affected by the type of mediator, and that significantly boosted dark matter can explain the excess depending on the mediator type and its mass choice. The method proposed in this work is general, and hence readily applicable to the interpretation of observed data in the dark matter direct detection experiment.

scholarly journals SABRE and the Stawell Underground Physics Laboratory Dark Matter Research at the Australian National University

2020 ◽  
Vol 232 ◽  
pp. 01002 ◽  
Author(s):  
L. J. Bignell ◽  
E. Barberio ◽  
M. B. Froehlich ◽  
G. J. Lane ◽  
O. Lennon ◽  
...  
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Liquid Scintillator ◽  
Detection Experiment ◽  
Physics Laboratory ◽  
Quenching Factor ◽  
National University ◽  
Deep Underground ◽  
Underground Physics ◽  
Under Construction

The direct detection of dark matter is a key problem in astroparticle physics that generally requires the use of deep-underground laboratories for a low-background environment where the rare signals from dark matter interactions can be observed. This work reports on the Stawell Underground Physics Laboratory – currently under construction and the first such laboratory in the Southern Hemisphere – and the associated research program. A particular focus will be given to ANU’s contribution to SABRE, a NaI:Tl dark matter, direct detection experiment that aims to confirm or refute the long-standing DAMA result. Preliminary measurements of the NaI:Tl quenching factor and characterisation of the SABRE liquid scintillator veto are reported.

scholarly journals SABRE: A New NaI(T1) Dark Matter Direct Detection Experiment

2015 ◽  
Vol 61 ◽  
pp. 169-178 ◽  
Author(s):  
Emily Shields ◽  
Jingke Xu ◽  
Frank Calaprice
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Detection Experiment

scholarly journals On the direct detection of multi component dark matter

2020 ◽  
Vol 245 ◽  
pp. 06036
Author(s):  
Andre Scaffidi
Keyword(s):  
Dark Matter ◽  
Parameter Space ◽  
Direct Detection ◽  
Critical Factor ◽  
Positive Signal ◽  
Detection Experiment ◽  
Two Component ◽  
Massive Particles ◽  
Free Parameters

We study the case of multi-component dark matter, in particular how direct detection signals are modified in the presence of several stable weaklyinteracting-massive particles. Assuming a positive signal in a future direct detection experiment, stemming from two dark matter components, we study the region in parameter space where it is possible to distinguish a one from a two-component dark matter spectrum. We leave as free parameters the two dark matter masses and show that the two hypotheses can be significantly discriminated for a range of dark matter masses with their splitting being the critical factor. For full details see the first of a series of two publications [1].

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