13 Result(s)
within
Ligong Bian
Quantum Physics
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Article
Open AccessProbing the electroweak symmetry breaking history with gravitational waves
We perform three dimensional lattice simulation of the electroweak symmetry breaking process through two-step vacuum-like phase transitions with one step being first-order. Our results show that: 1) when the e...
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Open AccessDetection of early-universe gravitational-wave signatures and fundamental physics
Detection of a gravitational-wave signal of non-astrophysical origin would be a landmark discovery, potentially providing a significant clue to some of our most basic, big-picture scientific questions about th...
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Open AccessElectroweak phase transition and gravitational waves in the type-II seesaw model
The type-II seesaw model is a possible candidate for simultaneously explaining non-vanishing neutrino masses and the observed baryon asymmetry of the Universe. In this work, we study in detail the pattern of p...
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Open AccessProbing superheavy dark matter with gravitational waves
We study the superheavy dark matter (DM) scenario in an extended B−L model, where one generation of right-handed neutrino νR is the DM candidate. If there is a new lighter sterile neutrino that co-annihilate with...
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Open AccessElectroweak baryogenesis and gravitational waves in a composite Higgs model with high dimensional fermion representations
We study electroweak baryogenesis in the SO(6)/SO(5) composite Higgs model with the third generation quarks being embedded in the 20′ representation of SO(6). The scalar sector contains one Higgs doublet and one ...
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Open AccessGravitational waves from first-order phase transition and domain wall
In many particle physics models, domain walls can form during the phase transition process after the breakdown of the discrete symmetry. Utilizing the ℤ3 symmetric complex singlet scalar extension of the Standard...
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Open AccessElectroweak phase transition with composite Higgs models: calculability, gravitational waves and collider searches
We study the strong first order electroweak phase transition (SFOEWPT) with the SO(6)/SO(5) composite Higgs model, whose scalar sector contains one Higgs doublet and one real singlet. Six benchmark models are bui...
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Open AccessElectroweak phase transition and Higgs phenomenology in the Georgi-Machacek model
In this work, we perform the electroweak phase transition study with the Georgi-Machacek model. We investigate both the one-step and two-step strong first order electroweak phase transition (SFOEWPT). The SFOE...
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Open AccessThermally modified sterile neutrino portal dark matter and gravitational waves from phase transition: the freeze-in case
We consider the thermal effects into the evaluation of the dark matter production process. With the assistance of the right handed neutrinos, the freeze-in massive particle dark matter production history can b...
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Open AccessA new insight into the phase transition in the early Universe with two Higgs doublets
We study the electroweak phase transition in the alignment limit of the CP-conserving two-Higgs-doublet model (2HDM) of Type I and Type II. The effective potential is evaluated at one-loop, where the thermal p...
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Open AccessHiggs pair productions in the CP-violating two-Higgs-doublet model
In this work, we study the SM-like Higgs pair productions in the framework of the general CP-violating two-Higgs-doublet model. Several constraints are imposed to the model sequentially, including the SM-like ...
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Open AccessProspects for triple gauge coupling measurements at future lepton colliders and the 14 TeV LHC
The W W production is the primary channel to directly probe the triple gauge couplings. We first analyze the e + e −
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Open AccessTwo component dark matter with multi-Higgs portals
With the assistance of two extra groups, i.e., an extra hidden gauge group SU(2) D and a global U(1) group, we propose a two component dark matter (DM) model. After the symmetry...
