AMPLITUDES

作品数：72被引量：93H指数：5
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相关领域：理学更多>>
相关作者：李艳东郑晓东张云更多>>
相关机构：中国石油天然气集团公司中国科学院南京大学更多>>
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相关基金：国家自然科学基金国家重点基础研究发展计划北京市自然科学基金国家教育部博士点基金更多>>
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Planar matrices and arrays of Feynman diagrams:poles for higher k
《Communications in Theoretical Physics》2024年第4期1-13,共13页Alfredo Guevara Yong Zhang 
supported in part by the Government of Canada through the Department of Innovation, Science and Economic Development Canada;by the Province of Ontario through the Ministry of Economic Development, Job Creation and Trade
Planar arrays of tree diagrams were introduced as a generalization of Feynman diagrams that enable the computation of biadjoint amplitudes m_(n)(^(k))for k>2.In this follow-up work,we investigate the poles of m_(n)(^(...
关键词：Feynman diagrams biadjoint amplitudes POLES 
Planar matrices and arrays of Feynman diagrams
《Communications in Theoretical Physics》2024年第3期15-32,共18页Freddy Cachazo Alfredo Guevara Bruno Umbert Yong Zhang 
supported in part by the Government of Canada through the Department of Innovation,Science and Economic Development Canada;by the Province of Ontario through the Ministry of Economic Development,Job Creation and Trade。
Recently,planar collections of Feynman diagrams were proposed by Borges and one of the authors as the natural generalization of Feynman diagrams for the computation of k=3 biadjoint amplitudes.Planar collections are o...
关键词：Feynman diagrams biadjoint amplitudes tropical Grassmannian 
Vertical impedance functions of pile groups under low-to-high loading amplitudes:numerical simulations and experimental validation被引量：1
《Earthquake Engineering and Engineering Vibration》2023年第3期647-666,共20页Usama Zafar Chandra Shekhar Goit Masato Saitoh Riku Fukuda 
Piles in a group experience additional displacements in soil due to pile-to-pile interactions apart from those resulting from the external loading.The effect of these interactions determined assuming soil as an elasti...
关键词：impedance functions numerical simulations model-scale experiment superposition approach soil-pile interface nonlinearity 
Modelling individual head-related transfer function(HRTF)based on anthropometric parameters and generic HRTF amplitudes被引量：1
《CAAI Transactions on Intelligence Technology》2023年第2期364-378,共15页Rui Zhang Ruijie Meng Jinqiu Sang Yi Hu Xiaodong Li Chengshi Zheng 
National Key Research&Development,R&D Program of China,Grant/Award Number:2021YFB3201702;National Natural Science Foundation of China,Grant/Award Number:12074403。
The head-related transfer function(HRTF)plays a vital role in immersive virtual reality and augmented reality technologies,especially in spatial audio synthesis for binaural reproduction.This article proposes a deep l...
关键词：audio databases augmented reality deep learning MULTIMEDIA 
Exploring HVV amplitudes with CP violation using decomposition and the on-shell scattering amplitude method
《Chinese Physics C》2023年第3期67-83,共17页冯柯尧 万霞 王由凯 邬超 
Supported by the National Natural Science Foundation of China(11847168);the Fundamental Research Funds for the Central Universities of China(GK202003018);the Natural Science Foundation of Shannxi Province,China(2019JM-431,2019JQ-739)。
CP violation may play an important role in baryogenesis in the early universe and should be examined comprehensively at colliders.We study the CP properties of HVV vertexes between Higgs and gauge boson pairs by defin...
关键词：HIGGS scattering amplitude CP violation 
Standard model effective field theory from on-shell amplitudes
《Chinese Physics C》2023年第2期55-62,共8页马腾 舒菁 肖明磊 
supported in part by a project (Y6Y2581B11) funded by 2016 National Postdoctoral Program for Innovative Talents;supported by the National Nat-ural Science Foundation of China (NSFC)(11847612,11690022,11851302,11675243,11761141011);supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB21010200,XDB23000000);supported by the 2019 International Postdoctoral Exchange Fellowship Program。
We present a general method of constructing unfactorizable on-shell amplitudes(amplitude basis) and build up their one-to-one correspondence to the independent and complete operator basis in effective field theory(EFT...
关键词：effective field theory scattering amplitude SMEFT SMEFT construction 
Singularities and accumulation of singularities ofπN scattering amplitudes
《Communications in Theoretical Physics》2022年第11期136-139,共4页Qu-Zhi Li Han-Qing Zheng 
supported in part by National Nature Science Foundations of China under contract numbers 11975028 and 10925522。
It is demonstrated that for the isospin I=1/2πN scattering amplitude,T^(I=1/2)(s,t),s=(m_(N)^(2)-m_(π)^(2))^(2)/m_(N)^(2)and s=m_(N)^(2)+2m_(π)^(2)are two accumulation points of poles on the second sheet of complex...
关键词：dispersion relations partial wave ANALYTICITY 
Integration of multiscale entropy and BASED scale of electroencephalography after adrenocorticotropic hormone therapy predict relapse of infantile spasms被引量：3
《World Journal of Pediatrics》2022年第11期761-770,共10页Lin Wan Chu-Ting Zhang Gang Zhu Jian Chen Xiu-Yu Shi Jing Wang Li-Ping Zou Bo Zhang Wen-Bin Shi Chien-Hung Yeh Guang Yang 
This research was partially supported by National Natural Science Foundation of China(Nos.62171028,62001026);the Natural Science Foundation of Beijing,China(No.7222187);the Medical Big Data and Artificial Intelligence Research and Development Project of the Chinese PLA General Hospital(No.2019MBD-004);the Epilepsy Research Fund of China Association Against Epilepsy(No.CU-B-2021-11);the Nutrition and Care of Maternal&Child Research Fund Project of Guangzhou Biostime Institute of Nutrition&Care(No.2021BINCMCF030).
Background Even though adrenocorticotropic hormone(ACTH)demonstrated powerful efficacy in the initially successful treatment of infantile spasms(IS),nearly half of patients have experienced a relapse.We sought to inve...
关键词：Burden of amplitudes and epileptiform discharges score Infantile spasms Multiscale entropy Prediction RELAPSE 
New approach for amplitudes with multiple fermion lines
《Chinese Physics C》2022年第8期63-71,共9页Feng Zhang Bin Gong Jian-Xiong Wang 
Supported by the National Natural Science Foundation of China (12135013,11975242);supported in part by National Key Research and Development Program of China (2020YFA0406400)。
A new approach for tree-level amplitudes with multiple fermion lines is presented.It primarily focuses on the simplification of fermion lines.By calculating two vectors recursively without any matrix multiplications,t...
关键词：multi-particle process scattering amplitude fermion line tree level 
Variations in Amplitudes and Wave Energy along the Energy Dispersion Paths for Rossby Waves in the Quasigeostrophic Barotropic Model
《Advances in Atmospheric Sciences》2022年第6期876-888,共13页Yaokun LI Jiping CHAO Yanyan KANG 
This study was jointly funded by the National Natural Science Foundation of China(Grant Nos.41805041 and 41505042);the National Program on Global Change and Air-Sea Interaction(GASI-IPOVAI-03);the National Basis Research Program of China(2015CB953601 and 2014CB953903);the Fundamental Research Funds for the Central Universities.
Variations in wave energy and amplitude for Rossby waves are investigated by solving the wave energy equation for the quasigeostrophic barotropic potential vorticity model.The results suggest that compared with rays i...
关键词：Rossby waves quasigeostrophic barotropic model energy dispersion wave energy AMPLITUDE 
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