Constraining parameter space of the little Higgs model using data from tera-Z factory and ILC

Guo, Xing-Dao; Feng, Tao; Zhao, Shu-Min; Ke, H. W.; Li, Xue–Qian

doi:10.1088/1674-1137/39/2/023103

Cited by 3 publications

(3 citation statements)

References 72 publications

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“…Detailed analysis of this intersection is essential for understanding the reaction mechanism of the system and rationally explaining the reaction process. We use the method proposed by Yoshizawa [58,59] , Shuhua Li [60] and Zhen Guo [61] to approximate the intersection point of the two potential energy surfaces. The method is mainly to calculate the single-point energy of another self-selected polymorphism along the IRC structure of a self-selected polymorphism on the potential energy surface with the intersection point to obtain a single-point energy curve, then draw two polymorphic single-point energy curves and find a cross seam point.…”

Section: Potential Energy Surface Intersectionmentioning

confidence: 99%

Ab initio prediction of the interaction between Pa and ammonia in the gas phase: microscopic mechanism, topological analysis and reaction rate constant

shan,

Gao

2024

Preprint

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As an important candidate nuclear fuel in the future advanced nuclear energy system, actinide nitrides have attracted many scholars’ attention due to their good thermal conductivity and economic safety. In this research, DFT and TST are used to reasonably predict the formation process of actinide nitrides, and the detailed reaction mechanism was obtained, including two dehydrogenation channels and a new isomerization channel. The results show that the HPa-NH2 structure is the lowest energy point in the whole reaction, and the dehydrogenation path of the planar structure is the lowest energy path of the system. In addition, a series of topological analyses are to analyze the bond formation behavior during the reaction in depth. Finally, considering the one-dimensional tunneling effect, the variational transition state method (VTST) is used to predict the reaction rate constant in the range of 298K to 2000K. The results show that the one-dimensional tunneling effect has less influence on the reaction, and the planar dehydrogenation channel is more easy to happen. This research is very important for the systematic understanding of actinide compounds and the properties of the materials related to the compounds, and can provide theoretical data comparison for subsequent related experimental studies on protactinium imines.

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Section: Potential Energy Surface Intersectionmentioning

confidence: 99%

Ab initio prediction of the interaction between Pa and ammonia in the gas phase: microscopic mechanism, topological analysis and reaction rate constant

shan,

Gao

2024

Preprint

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“…Recently, this topic has been addressed for some specific models [56][57][58][59][60]. Large Electron-Positron collider (LEP) has also searched for exotic Z decays into light Higgs [61,62], two light Higgs in the minimal supersymmetric Standard Model [63], photon and missing energy [64][65][66], and three photons [67]. There are also direct searches for DM particles at LEP-II via mono photon final states [68].…”

Section: Introductionmentioning

confidence: 99%

Exposing the dark sector with future Z factories

Liu

Wang

et al. 2018

Phys. Rev. D

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We investigate the prospects of searching dark sector models via exotic Z-boson decay at future e þ e − colliders with Giga Z and Tera Z options. Four general categories of dark sector models, Higgs portal dark matter, vector-portal dark matter, inelastic dark matter, and axionlike particles, are considered. Focusing on channels motivated by the dark sector models, we carry out a model-independent study of the sensitivities of Z factories in probing exotic decays. The limits on branching ratios of the exotic Z decay are typically Oð10 −6 -10 −8.5 Þ for the Giga Z and Oð10 −7.5 -10 −11 Þ for the Tera Z, and they are compared with the projection for the high luminosity LHC. We demonstrate that future Z factories can provide its unique and leading sensitivity and highlight the complementarity with other experiments, including the indirect and direct dark matter search limits and the existing collider limits. Future Z factories will play a leading role in uncovering the hidden sector of the Universe in the future.

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“…Recently, this topic has been addressed for some specific models [56][57][58][59][60]. LEP has also searched for exotic Z decays into light Higgs [61,62], two light Higgs in MSSM [63], photon and missing energy [64][65][66] and three photons [67]. There are also direct searches for DM particles at LEP-II via mono photon final states [68].…”

mentioning

confidence: 99%

Exposing dark sector with futureZ-factories

Liu

Wang

et al. 2019

Int. J. Mod. Phys. A

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We investigate the prospects of searching dark sector models via exotic Z-boson decay at future e + e − colliders with Giga Z and Tera Z options. Four general categories of dark sector models: Higgs portal dark matter, vector portal dark matter, inelastic dark matter and axionlike particles, are considered. Focusing on channels motivated by the dark sector models, we carry out a model independent study of the sensitivities of Z-factories in probing exotic decays. The limits on branching ratios of the exotic Z decay are typically O(10 −6 −10 −8.5 ) for the Giga Z and O(10 −7.5 − 10 −11 ) for the Tera Z, and they are compared with the projection for the high luminosity LHC. We demonstrate that future Z-factories can provide its unique and leading sensitivity, and highlight the complementarity with other experiments, including the indirect and direct dark matter search limits, and the existing collider limits. Future Z factories will play a leading role to uncover the hidden sector of the universe in the future. *

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Constraining parameter space of the little Higgs model using data from tera-Z factory and ILC

Cited by 3 publications

References 72 publications

Ab initio prediction of the interaction between Pa and ammonia in the gas phase: microscopic mechanism, topological analysis and reaction rate constant

Ab initio prediction of the interaction between Pa and ammonia in the gas phase: microscopic mechanism, topological analysis and reaction rate constant

Exposing the dark sector with future Z factories

Exposing dark sector with futureZ-factories

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