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Light axion-like particles and the pseudoscalar mesonic decays M →M′v■

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Communications in Theoretical Physics 2024年第9期 39-43页

作者： Guo-Qiang Dai chong-xing yue Yang-Yang Bu Yi-Hang Wang Department of physics Liaoning Normal University Center for Theoretical and Experimental High Energy Physics Liaoning Normal University

The axion-like particle （ALP） is one kind of the best-motivated new *** consider its production from the pseudoscalar mesonic decays M→M′a,with M being a pseudoscalar meson B or *** upper limits on the flavor-conserving ALP–quark coupling parameter guare obtained by assuming the ALP to be an invisible *** find that the most severe constraint on gucomes from the decay K+→π+v■ for 0.05 Ge V≤Ma≤0.35 Ge V,while the decays B+,0→K+,0v■and B+,0→π+,0υ■can also generate significant constraints.

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Searching for the light leptophilic gauge boson Zx via four-lepton final states at the CEPC

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Chinese Physics C 2024年第4期48卷 59-67页

作者：岳崇兴李妍钰王美舒羽张欣蒙 Department of Physics Liaoning Normal UniversityDalian 116029China Center for Theoretical and Experimental High Energy Physics Liaoning Normal UniversityDalian 116029China

We investigate the possibility of detecting the leptophilic gauge boson Z_(x) predicted by the U(1)Le−Lμmodel via the processes e+e−→ℓ^(+)ℓ^(−)Z_(x)(Z_(x)→ℓ^(+)ℓ^(−))and e+e−→ℓ^(+)ℓ^(−)Z_(x)(Z_(x)→νℓ¯νℓ)at the Circular Electron Positron Collider(CEPC)with a center of mass energy√s=240 GeV and luminosity L=5.6ab^(−1).We provide the expected sensitivities of the CEPC to the parameter space at the 1σ,2σ,3σ,and 5σlevels.

关键词： light gauge boson Z_(x) U(1)L_(e)-L_(μ)model Circular Electron Positron Collider

Anomalous tqγCouplings and Radiative B Meson Decays

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Chinese Physics Letters 2020年第10期37卷 17-20页

作者： Ying Tan chong-xing yue Department of Physics Liaoning Normal UniversityDalian 116029China

Motivated by the recent ATLAS results in terms of the branching ratios B r(t→qγ),we consider the effects of the anomalous t qγcouplings on the radiative B meson decays¯B→X Dγand B→Vγwith V being light vector mesonsρ,ω,ϕand K∗.Comparing with the corresponding experimental measured data,we obtain the constraints on anomalous t qγcouplings.

关键词： meson branching constraints

Constraints on anomalous quartic gauge couplings via Wγjj production at the LHC

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Chinese Physics C 2020年第12期44卷 72-87页

作者： Yu-Chen Guo Ying-Ying Wang Ji-chong Yang chong-xing yue Department of Physics Liaoning Normal UniversityDalian 116029China

Vector boson scattering at the Large Hadron Collider(LHC)is sensitive to anomalous quartic gauge couplings(aQGCs).In this study,we investigate the aQGC contribution to Wγjj production at the LHC with√s=13 TeV in the context of an effective field theory(EFT).The unitarity bound is applied as a cut on the energy scale of this production process,which is found to have significant suppressive effects on *** enhance the statistical significance,we analyze the kinematic and polarization features of the aQGC signals in *** find that the polarization effects induced by aQGCs are unique and can discriminate the signals from the SM backgrounds *** the proposed event selection strategy,we obtain the constraints on the coefficients of dimension-8 operators with current *** results indicate that the process pp→Wγjj is powerful for searching for the OM2,3,4,5 and OT5,6,7 operators.

关键词： anomalous quartic gauge coupling vector boson scattering Large Hadron Collider Standard Model effective field theory

Axion-Like Particles and the Higgs Decays h→PZ and h→Pe^+e^-

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Chinese Physics Letters 2018年第6期35卷 11-14页

作者： Zhong-Yuan An chong-xing yue Zhi-Cheng Liu Department of Physics Liaoning Normal University

Axion-like particles（ALPs）are often defined as relatively light pseudoscalar particles and appear in many extensions of the Standard *** into account constraints on the free parameters from existing searches and exp... 详细信息

关键词： Axion-Like Particles and the Higgs Decays h PZ and h Pe

Comprehensive tensile properties improved by deep cryogenic treatment prior to aging in friction-stir-welded 2198 Al–Li alloy

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Rare Metals 2024年第10期43卷 5403-5409页

作者： Jian-Qiu Sun yue Ma chong Gao Hong-Yun Luo School of Materials Science and Engineering Beihang University Chinalco Research Institute of Science and Technology

In order to improve the comprehensive mechanical properties,deep cryogenic treatment （DCT）prior to aging was carried out on friction-stir-welded（FSW） 2198 Al-Li alloy;afterward,the microstructure and tensile properties were characterized by means of optical microscopy （OM）,transmission electron microscopy（TEM） and tensile *** results show that FSW 2198 alloy through DCT prior to aging （DAT） possesses superior tensile properties than conventional aging treatment （AT）The microstructural analysis reveals that DAT alloy exhibits a finer grain structure,since DCT might effectively alleviate the residual stress in FSW 2198 alloy and thus decrease the driving force for grain coarsening in subsequent aging ***,DCT generates dislocation multiplication,which provides more preferential nucleation sites for T1 （Al2CuLi） phase during subsequent aging treatment,resulting in high-density fine T1 phases and thin precipitate-free zone within DAT *** reasonable microstructure leads to DAT alloy possessing better strength-ductility combination compared to AT alloy.

关键词： Al–Li alloy Deep cryogenic treatment Friction stir welding Tensile properties

Rational design and energy catalytic application of high-loading single-atom catalysts

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Rare Metals 2024年第10期43卷 4844-4866页

作者： Zi-Wei Deng yue Liu Jie Lin Wen-xing Chen Energy and Catalysis Center School of Materials Science and EngineeringBeijing Institute of Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Science

It is well known that single-atom catalysts(SACs)have become a hot topic in the field of catalysis due to their advantages such as 100% metal atom utilization efficiency,high catalytic activity and selectivity compared with conventional catalysts and nanocatalysts. However, the isolated metal atoms on SACs have thermodynamic instability and tend to agglomerate, which limit their catalytic ***, it is of great significance to synthesize stable and high-loading single-atom catalysts(HLSACs). In this paper,we review the research progress of HLSACs from two aspects:design and application. Firstly, we comprehensively introduce the synthesis strategies of HLSACs, namely, top-down and bottom-up methods. Secondly, we overview the application status of HLSACs in three fields: electrocatalysis, thermal catalysis and photocatalysis. Finally, we summarize the development prospects and challenges of HLSACs.

关键词： Design Electrocatalysis High-loading single-atom catalysts Photocatalysis Thermal catalysis

The possible signals of the LH model at the high-energy linear e+e- colliders

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The possible signals of the LH model at the high-energy line...

Effects of combustion temperature on the optical properties of brown carbon from biomass burning

第九届全国粒子物理学术会议

作者： chong-xing yue Department of Physics,Liaoning Normal University,Dalian

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Journal of Environmental Sciences 2024年第3期137卷 302-309页

作者： Peng Gao Rule Deng Song Jia yue Li Xuefei Wang Qian xing School of Chemistry Sciences University of Chinese Academy of SciencesBeijing 100049China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048China

Biomass burning has been known as one of main sources of Brown Carbon(BrC)in *** this study,by controlling the combustion temperature at 250℃,350℃,and 450℃,the methanol soluble organic carbon(MSOC)and methanol insoluble carbon(MISC)from pine wood burning was collected by ***–Vis,excitation emission matrix(EEM),TEM and FTIR spectra were applied to investigate the properties of BrC *** MSOC at 250℃ and 350℃,all the spectral profiles of UV–Vis absorption and excitation emission matrix are almost the same,while the EEM of MSOC at 450℃ are different from that of the other *** MISC fuorescence was observed only in the case of 450℃.In the FTIR spectra,with the temperature increasing the peaks associated to the oxygen-contained functions was weakened,indicating the formation of the fuorophores with larger conjugated system,especially aromatic *** results show that biomass combustion at low temperature produces more oxygen-riched BrC,which possesses relatively lower light absorption,while at high temperature produces more aromatics hydrocarbons with relatively strong light *** results of this work are helpful to trace the source of brown carbon and optimize biomass energy utilization.

关键词： Biomass burning Combustion temperature Methanol-soluble brown carbon EEM Impinger