42 citations · 300 across the 23 of their papers we have counts for
18 papers · 1 filter
Early kinetic decoupling effect on the forbidden dark matter annihilations into standard model particles
Yu Liu, Xuewen Liu, Bin Zhu
The early kinetic decoupling (eKD) effect is an inevitable ingredient in calculating the relic density of dark matter (DM) for various well-motivated scenarios. It appears naturall…
Probing Supersymmetry Breaking Scale with Atomic Clocks
Victor V. Flambaum, Xuewen Liu, Igor Samsonov +2
The supersymmetry (SUSY) breaking mechanism generally predicts the existence of the sgoldstinos, which can play the role of wave-like dark matter. Due to the ubiquitous coupling to…
Axion-assisted Resonance Oscillation Rescues the Dodelson-Widrow Mechanism
Shu-Yuan Guo, Xuewen Liu, Bin Zhu
The scale sterile neutrino was a qualified candidate for dark matter particles in the Dodelson-Widrow mechanism. But the mixing angle, needed to provide enough amount of…
Non-minimal Coupling Inflation and Dark Matter under the Symmetry
Wei Cheng, Xuewen Liu, Ruiyu Zhou
We study the cosmological inflation and dark matter (DM) in a unified way within a complex scalar model. The real and imaginary parts of the complex scalar act as the inflato…
Correlating Gravitational Waves with -boson Mass, FIMP Dark Matter, and Majorana Seesaw Mechanism
Xuewen Liu, Shu-Yuan Guo, Bin Zhu +1
We study a minimal extension of the Standard Model by introducing three right-handed neutrinos and a new scotogenic scalar doublet, in which the mass splittings between neutral and…
Probing superheavy dark matter with gravitational waves
Ligong Bian, Xuewen Liu, Ke-Pan Xie
We study the superheavy dark matter (DM) scenario in an extended model, where one generation of right-handed neutrino is the DM candidate. If there is a new lighter ste…
Probing the flavor-specific scalar mediator for the muon deviation, the proton radius puzzle and the light dark matter production
Bin Zhu, Xuewen Liu
Flavor-specific scalar bosons exist in various Standard Model extensions and couple to a single generation of fermions via a global flavor symmetry breaking mechanism. Given this s…
Heavy dark matter and Gravitational waves
Xin Deng, Xuewen Liu, Jing Yang +2
Domain walls can form after breakdown of a discrete symmetry induced by first-order phase transition, we study the heavy dark matter produced around the temperature of the phase tr…
The Light Sgoldstino Phenomenology: Explanations for the Muon Deviation and KOTO Anomaly
Xuewen Liu, Ying Li, Tianjun Li +1
In this work, we study the long-standing experimental anomaly in muon and also recent anomalous excess in at the J-PARC KOTO experiment with sgoldstino.…
Two-mediator dark matter models and cosmic electron excess
Xuewen Liu, Zuowei Liu, Yushan Su
The cosmic electron energy spectrum recently observed by the DAMPE experiment exhibits two interesting features, including a break around 0.9 TeV and a sharp resonance near 1.4 TeV…
Two-step strongly first-order electroweak phase transition modified FIMP dark matter, gravitational wave signals, and the neutrino mass
Ligong Bian, Xuewen Liu
We study a dynamical freeze-in production of the dark matter considering the electroweak phase transition history of the Universe. The kinematical thresholds of the decay and scatt…
TeV dark matter and the DAMPE electron excess
Xuewen Liu, Zuowei Liu
The recent high energy electron and positron flux observed by the DAMPE experiment indicates possible excess events near 1.4 TeV. Such an excess may be evidence of dark matter anni…
Dark matter and electroweak phase transition in the mixed scalar dark matter model
Xuewen Liu, Ligong Bian
We study the electroweak phase transition in the framework of scalar singlet-doublet mixed dark matter model, where the particle dark matter candidate is the lightest neutral Higgs…
Study of structures and dynamical decay mechanisms for multiquark systems
Xuewen Liu, Hong-Wei Ke, Xiang Liu +1
The inner structures of the multiquark states are an interesting subject in hadron physics, generally they may be in tetraquark states which are composed of colored constituents, o…
Exploring open-charm decay mode of charmonium-like state
Xuewen Liu, Hong-Wei Ke, Xiang Liu +1
The newly observed exotic states are definitely not in the standard structures, thus their existence composes a challenge to our understanding on the fundament…
Study on direct pion emission in decay
Xing-Dao Guo, Xuewen Liu, Hong-Wei Ke +1
The QCD multipole expansion (QCDME) is based on the quantum field theory, so should be more reliable. However, on another aspect, it refers to the non-perturbative QCD , so that ha…
Type-III two Higgs doublet model plus a pseudoscalar confronted with , muon and dark matter
Xuewen Liu, Ligong Bian, Xue-Qian Li +1
In this work, we introduce an extra singlet pseudoscalar into the Type-III two Higgs doublet model (2HDM) which is supposed to solve a series of problems in the modern particle-cos…
Study on the structure of the four-quark states in terms of the Born-Oppenheimer approximation
Xue-Wen Liu, Hong-Wei Ke, Yi-Bing Ding +1
In this work, we use the Born-Oppenheimer approximation where the potential between atoms can be approximated as a function of distance between the two nuclei to study the four-qua…