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Two-step strongly first-order electroweak phase transition modified FIMP dark matter, gravitational wave signals, and the neutrino mass
/ Bian, Ligong ; Liu, Xuewen
We study the dynamical freeze-in production of dark matter considering the electroweak phase transition history of the Universe. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.055003
arXiv:1811.03279
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TeV dark matter and the DAMPE electron excess
/ Liu, Xuewen ; Liu, Zuowei
The recent high energy electron and positron flux observed by the DAMPE experiment indicates possible excess events near 1.4 TeV. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.035025
arXiv:1711.11579
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Dark matter and electroweak phase transition in the mixed scalar dark matter model
/ Liu, Xuewen ; Bian, Ligong
We study the electroweak phase transition in the framework of the scalar singlet-doublet mixed dark matter model, in which the particle dark matter candidate is the lightest neutral Higgs that comprises the -even component of the inert doublet and a singlet scalar. [...]
Published in Phys. Rev. D 97 (2018)
10.1103/PhysRevD.97.055028
arXiv:1706.06042
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Exploring open-charm decay mode ΛcΛ¯c of charmonium-like state Y (4630)
/ Liu, Xuewen ; Ke, Hong-Wei ; Liu, Xiang ; Li, Xue-Qian
The newly observed X , Y , Z exotic states are definitely not in the standard QQ¯′ structures, thus their existence composes a challenge to our understanding on the fundamental principles of hadron physics. [...]
Published in EPJC 76 (2016) 549
10.1140/epjc/s10052-016-4403-3
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Type-III two Higgs doublet model plus a pseudoscalar confronted with h → μτ , muon g − 2 and dark matter
/ Liu, Xuewen ; Bian, Ligong ; Li, Xue-Qian ; Shu, Jing
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-cosmology. [...]
Published in Nuclear Physics B (2016)
10.1016/j.nuclphysb.2016.05.027
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