A5103016673- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Cosmic Phenomena
- Stellar, planetary, and galactic studies
- Toxic Organic Pollutants Impact
- Astronomy and Astrophysical Research
- Effects and risks of endocrine disrupting chemicals
- Atomic and Subatomic Physics Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Microbial bioremediation and biosurfactants
- Climate Change Policy and Economics
- Radio Astronomy Observations and Technology
- Gamma-ray bursts and supernovae
- Particle Detector Development and Performance
- Odor and Emission Control Technologies
- Scientific Research and Discoveries
- Relativity and Gravitational Theory
- Astro and Planetary Science
- Industrial Gas Emission Control
- Microplastics and Plastic Pollution
- Air Quality and Health Impacts
Purple Mountain Observatory
2018-2024
Chinese Academy of Sciences
2011-2024
University of Science and Technology of China
2018-2024
University of Chinese Academy of Sciences
2008-2014
Guangzhou Institute of Geochemistry
2011-2014
Baoji University of Arts and Sciences
2014
Mergers of binary compact objects, accompanied with electromagnetic (EM) counterparts, offer excellent opportunities to explore varied cosmological models, since gravitational waves (GWs) and EM counterparts always carry the information luminosity distance redshift, respectively. $f(T)$ gravity, which alters background evolution provides a friction term in propagation GWs, can be tested by comparing modified GW distance. Considering third-generation gravitational-wave detectors, Einstein...
Abstract Observations from the James Webb Space Telescope (JWST) have unveiled several galaxies with stellar masses $$M_*\gtrsim 10^{10} M_\odot$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi>M</mml:mi> <mml:mrow/> <mml:mo>∗</mml:mo> </mml:mrow> </mml:mmultiscripts> <mml:mo>≳</mml:mo> <mml:msup> <mml:mn>10</mml:mn> </mml:msup> <mml:msub> <mml:mo>⊙</mml:mo> </mml:msub> </mml:math> at redshifts $$7.4\lesssim z\lesssim 9.1$$...
We present compelling evidence that Dark Matter (DM)-neutrino interactions can resolve the persistent structure growth parameter discrepancy, $S_8 = \sigma_8\,\sqrt{\Omega_m/0.3}$, between early and late universe observations. By incorporating cosmic shear measurements from current Weak Lensing (WL) surveys leveraging an emulator based on true $N$-body simulations to account for nonlinear corrections, we demonstrate interaction strength of $u \sim 10^{-4}$ not only provides a coherent...
Recently, the XENON1T experiment has reported possible detection of an excess in electronic recoil spectrum. Such may indicate presence new physics. In this work, we suggest that scattering mirror electrons with ordinary through photon–mirror photon kinetic mixing parameter ϵ∼10−12(ne′/0.2cm−3)−1/2(vc0/5×109cms−1)1/2 account for events XENON1T, where ne′ is density electron and vc0 cutoff velocity arriving at earth. Interestingly, to interpret spectrum are consistent constrains Darkside50.
Abstract We explore the potential of precision cosmological data to study non-minimal dark sectors by updating constraint on mirror twin Higgs model (MTH). The MTH addresses little hierarchy problem introducing sector particles. In this work, we perform a Bayesian global analysis that includes latest cosmic shear measurement from DES three-year survey and Planck CMB BAO data. early Universe, baryon radiation behave as matter radiation, their presence modifies Universe's expansion history....
Inspired by the peak structure observed recent DAMPE experiment in $$e^+e^-$$ cosmic-ray spectrum, we consider a scalar dark matter (DM) model with gauged $$U(1)_{L_e-L_\mu }$$ symmetry, which is most economical anomaly-free theory to potentially explain DM annihilation nearby subhalo. We utilize process $$\chi \chi \rightarrow Z^\prime l \bar{l} l^\prime \bar{l}^\prime $$ , where $$Z^\prime $$l^{(\prime )}$$ denote DM, new gauge boson and )} =e, \mu respectively, generate spectrum. By...
Precise measurements of spectra cosmic ray electrons and positrons can effectively probe the nature dark matter (DM) particles. In a class models where DM particles initially annihilate into pair intermediate which then decay standard model particles, box-shaped be generated. Such are distinct from astrophysical backgrounds probably regarded as characteristic features annihilation. this work, we search for such feature in total electron plus positron spectrum measured by AMS-02 DAMPE. No...
Abstract Omega Centauri, the largest known globular cluster in Milky Way, is believed to be remains of a dwarf galaxy's core. Giving its potential abundance dark matter (DM), it an attractive target for investigating nature this elusive substance our local environment. Our study demonstrates that by observing Centauri with SKA 100 hours, we can detect synchrotron radio or Inverse Compton (IC) emissions from DM annihilation products. It enables us constrain cross-section down ∼ 10 -30 cm 3 s...
Abstract Primordial black holes (PBHs) are the plausible candidates for cosmological dark matter. Theoretically, PBHs with masses $$M_{\textrm{PBH}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>M</mml:mi> <mml:mtext>PBH</mml:mtext> </mml:msub> </mml:math> in range of $$4\times 10^{14}\sim 10^{17}\,\textrm{g}$$ <mml:mrow> <mml:mn>4</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mn>14</mml:mn> </mml:msup> <mml:mo>∼</mml:mo> <mml:mn>17</mml:mn>...
Several Pulsar Timing Array (PTA) collaborations have recently provided strong evidence for a nHz Stochastic Gravitational-Wave Background (SGWB). Here we investigate the implications of first-order phase transition occurring within early universe's dark quantum chromodynamics (dQCD) epoch, specifically framework mirror twin Higgs sector model. Our analysis indicates distinguishable SGWB signal originating from this transition, which can explain measurements obtained by PTAs. Remarkably,...
The left-right symmetric model (LRSM) is an attractive extension of the Standard Model (SM) that can address origin parity violation in SM electroweak interactions, generate tiny neutrino masses, accommodate dark matter (DM) candidates, and provide a natural framework for baryogenesis through leptogenesis. In this work, we utilize minimal LRSM to study recently reported DAMPE results cosmic ${e}^{+}{e}^{\ensuremath{-}}$ spectrum, which exhibits tentative peak around 1.4 TeV, while satisfying...
Very recently, the Fermi-Lab reported new experimental combined results on magnetic momentum of muon with a 4.2$\sigma$ discrepancy compared expectation Standard Model \cite{Fermi_Lab}. A light gauge boson $X$ in $L_{\mu}-L_{\tau}$ model provides good explanation for $g-2$ anomaly. Dirac fermion dark matter large charge can explain both anomaly and relic density \cite{Asai_2021}. In this work, we focus case that mass is larger than (i.e. $m_{\Psi} > m_{\mu}$) which channel $\Psi \Psi...
Dark matter might be in the form of a dark plasma Milky Way halo. Specifically, we consider here hidden sector consisting light `dark electron' and much heavier proton', each charged under an unbroken $U(1)'$ gauge symmetry. These self-interacting particles can also interact with ordinary via kinetic mixing interaction, lead to signal direct detection experiments. Indeed, keV electron recoils arise quite naturally such models from scattering off loosely bound atomic electrons. Here examine...