A5101924224- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Chromodynamics and Particle Interactions
- Scientific Research and Discoveries
- Galaxies: Formation, Evolution, Phenomena
- Solar and Space Plasma Dynamics
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Gamma-ray bursts and supernovae
- Space Science and Extraterrestrial Life
- Microplastics and Plastic Pollution
- Stochastic processes and statistical mechanics
- Astrophysics and Cosmic Phenomena
- Membrane Separation Technologies
- Ionosphere and magnetosphere dynamics
- Electric Power System Optimization
- Business and Economic Development
- Noncommutative and Quantum Gravity Theories
- Microbial Community Ecology and Physiology
- Stellar, planetary, and galactic studies
- Enterprise Management and Information Systems
- Smart Grid Energy Management
Shandong Institute of Advanced Technology
2021-2023
Shandong Academy of Sciences
2021-2023
Tsinghua University
2020-2023
China Three Gorges University
2022
University of California, Riverside
2018-2020
Hebei University of Science and Technology
2019
The University of Tokyo
2014-2018
Kavli Institute for the Physics and Mathematics of the Universe
2014-2018
Fermi National Accelerator Laboratory
2012-2013
University of Chicago
2011-2013
A resonance near 750 GeV has been observed at both the ATLAS and CMS experiments in its diphoton decay channel. We propose a possible interpretation based on simplified model: singlet scalar resonance, minimal stealth vector quark are introduced. At LHC, is produced through gluon fusion, subsequently decays to final state. The light quarks could enhance rate significantly, while still keeping other channels below current LHC search limits. find that around 400 ~ 500 with coupling 0.5 1.5...
Light dark matter with mass smaller than about 10 GeV is difficult to probe from direct detection experiments. In order have the correct thermal relic abundance, mediator of interaction between and Standard Model (SM) should also be relatively light, $\sim 10^2$ GeV. If such a light couples charged leptons, it would already strongly constrained by searches at colliders. this work, we consider scenario leptophobic $Z'$ vector boson as mediator, study prospect searching for 8 TeV Large Hadron...
Introduction Future crewed missions to Mars will encounter substantially elevated radiation levels compared low Earth orbit operations. To address this challenge, we present the Space-Dependent Energetic cosmic ray Modulation using MAgnetic spectrometer (SDEMMA) model, a novel framework for modeling galactic (GCR) dynamics in deep-space environments. Methods The model employs stochastic differential equations with outer boundary conditions derived from contemporary local interstellar...
We consider a self-interacting dark matter model in which the massive photon mediating self-interaction decays to light fermions avoid over-closing universe. find that if is constrained explain halos inferred for spiral galaxies and galaxy clusters simultaneously, there strong indication produced asymmetrically early It also implies presence of radiation, late kinetic decoupling matter, suppressed linear power spectrum due acoustic damping. The Lyman-$\alpha$ forest measurements put upper...
We consider renormalisable models extended in the scalar sector by a generic field addition to standard model Higgs boson field, and work out effective theory for latter decoupling limit. match full onto at tree one-loop levels, concentrate on dimension-6 operators of electroweak gauge fields induced from such matching. The Wilson coefficients these tree-level matching are further improved renormalisation group running. For specific SU(2) L representations some "accidental" couplings with...
We apply the covariant derivative expansion of Coleman-Weinberg potential to vector-like fermion models, matching UV theory relevant dimension-6 operators in standard model effective field theory. The γ matrix induced complication fermionic is studied detail, and all contributing combinations are enumerated. From this analytical result we also provide numerical constraints for a generation quarks leptons.
We apply the covariant derivative expansion of Coleman-Weinberg potential to sfermion sector in minimal supersymmetric standard model, matching it relevant dimension-6 operators model effective field theory at one-loop level. Emphasis is paid nondegenerate large soft supersymmetry breaking mass squares, and most general analytical Wilson coefficients are obtained for all pure bosonic operators. In addition non-logarithmic contributions, they generally have another logarithmic contributions....
As an emerging and active entity in China's electricity market, selling companies call for a more reliable operational mechanism new consumption mode to broaden their profit margins. Aiming at distributed power generation-based sales by considering the participation of virtual plants (VPPs), this paper presents relevant operating systems Chinese market. Then proposes platform transactions optimal dispatch based on master-slave game optimization model. The model is built so that main gamer,...
We report results of a search for dark-matter–nucleon interactions via dark mediator using optimized low-energy data from the PandaX-4T liquid xenon experiment. With ionization-signal-only and utilizing Migdal effect, we set most stringent limits on cross section matter masses ranging 30 MeV/c2 to 2 GeV/c2. Under assumption that is photon decays into scalar pairs in early Universe, rule out significant parameter space such thermal relic dark-matter model.Received 4 August 2023Revised 23...
Abstract We present a new calculation of the astronaut dose rate from galactic cosmic rays in free space at 1 AU. use unshielded isotropic fluence‐to‐dose conversion coefficients given International Commission on Radiological Protection publication 123. A 3D and time‐dependent solar modulation model based Parker's transport equation as originally developed Song et al. (2021, https://doi.org/10.3847/1538-4365/ac281c ) is used to calculate ray spectra This uses recent local interstellar Corti...
We consider a model in which dark matter is composite baryon of sector governed by SU(3) gauge theory, with vector-like quarks also charged under U(1) Y . The provides simple answer to the stability problem: it result accidental number conservation. And an analogy QCD, all physical quantities can be calculated rescaling QCD experimental results. According thermal freeze-out mechanism mass predicted $$ \mathcal{O}(100) TeV order achieve correct relic abundance. Such heavy general hard for...
We study an extension of the minimal supersymmetric Standard Model with a gauge group $SU(2{)}_{1}\ensuremath{\bigotimes}SU(2{)}_{2}$ breaking to $SU(2{)}_{L}$. The extra wino has enhanced coupling Model-like Higgs boson and, if light, relevant impact on weak-scale phenomenology. low-energy quartic is modified by both $D$-term corrections and modification its renormalization evolution from high energies. At low values $\mathrm{tan}\ensuremath{\beta}$, latter effect may be dominant. This...
We study the free-streaming effect in a light freeze-in dark matter model. Naturally sector one can find related coupling, and such coupling may induce self-scattering. In case that scattering is subdominant, partition function not thermal but determined by process, yet its high momentum side generally also Boltzmann suppressed. show power spectrum very similar to warm shape. When matched current WDM bound, 24 keV ruled out at 2σ confidence level. self-scattering strong decouples late time,...
The searches for heavy Higgs bosons and supersymmetric (SUSY) particles at the LHC have left minimal standard model (MSSM) with an unusual spectrum of SUSY particles, namely, all squarks are beyond a few TeV while other than one observed 125 GeV could be relatively light. In light this, we study scenario characterized by two scales: breaking scale or squark-mass (M S ) Higgs-boson mass (MA). We perform survey MSSM parameter space M ≲ 1010 A 104 such that lightest boson is within range as...
Dissipative dark matter self-interactions can affect halo evolution and change its structure. We perform a series of controlled N-body simulations to study impacts the dissipative interactions on properties. The interplay between gravitational contraction collisional dissipation significantly speed up onset gravothermal collapse, resulting in steep inner density profile. For reasonable choices model parameters controlling dissipation, collapse timescale be factor 10–100 shorter than that...
We study the cosmological signatures of invisibly annihilating dark matter (IAnDM), where DM annihilates into radiation particles that are decoupled from Standard Model (SM). In simple benchmark model we consider here, such invisible annihilation determines relic abundance via thermal freeze-out. demonstrate IAnDM may reveal itself through observable, novel correlated: scale-dependent $\mathrm{\ensuremath{\Delta}}{N}_{\mathrm{eff}}$ (number extra effective neutrinos) in cosmic microwave...
Introducing heavy particles with strong couplings to the Higgs field can strengthen electroweak phase transition through entropy release mechanism from both bosons and fermions. We analyze possibility of baryogenesis in minimal supersymmetric Standard Model (MSSM) new vectorlike superfields. The belong representation $5+\overline{5}+10+\overline{10}$ $SU(5)$. By analyzing detail effective potential at finite temperature, we show that a strongly first-order this model is ruled out by...
We apply the covariant derivative expansion method to integrate out neutralinos and charginos in minimal supersymmetric Standard Model. The results are presented as set of pure bosonic dimension-six operators Model effective field theory. Nontrivial chirality dependence fermionic is discussed carefully. checked by computing $h\ensuremath{\gamma}\ensuremath{\gamma}$ coupling electroweak oblique parameters using theory with our direct loop calculation. In global fitting, proposed lepton...
We present a model in which the dark matter particle is frozen-in at MeV scale. In this model, mediator between standard sector and can automatically provide self-interaction for matter. The interaction strength naturally to be region favor of cluster mass deficit anomaly. Due self-scattering, Lyman-$α$ constraint relaxed $m_D \gtrsim 2 $ keV. Fermi pressure both play roles on forming core center dwarf galaxies.