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Distributions and correlations of constituent quarks in jets

Chinese Physics C 2011年第6期35卷 561-566页

作者：黄瑞典蔡勖钱婉燕杨纯斌 Institute of Particle Physics Huazhong Normal University

In the frame of the quark recombination model, we study the momentum distributions and correlations of constituent quarks in jets by analyzing the final state hadrons generated by PYTHIA for the hard parton fragmentat... 详细信息

关键词： quark recombination constituent quark distribution function jet fragmentation PYTHIA

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A novel encoding mechanism for particle physics

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Nuclear Science and Techniques 2024年第8期35卷 153-166页

作者： Zhi‑Guang Tan Sheng‑Jie Wang You‑Neng Guo Hua Zheng Aldo Bonasera School of Electronic Information and Electrical Engineering Changsha UniversityChangsha 410003China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710119China Key Laboratory of quark and Lepton Physics(MOE) Central China Normal UniversityWuhan 430079China Cyclotron Institute Texas A&M UniversityCollege StationTX 77843USA Laboratori Nazionali del Sud INFN95123 CataniaItaly

This study proposes a novel particle encoding mechanism that seamlessly incorporates the quantum properties of particles,with a specific emphasis on constituent *** primary objective of this mechanism is to facilitate the digital registration and identification of a wide range of particle *** design ensures easy integration with different event generators and digital simulations commonly used in high-energy ***,this innovative framework can be easily expanded to encode complex multi-quark states comprising up to nine valence quarks and accommodating an angular momentum of up to 99/*** versatility and scalability make it a valuable tool.

关键词： Multi-quark state Encoding mechanism constituent quark Particle physics

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Meson polarized distribution function and mass dependence of the nucleon parton densities

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Chinese Physics C 2014年第8期38卷 7-17页

作者： A.Mirjalili K.Keshavarzian Physics Department Yazd University

The polarized distribution functions of mesons, including pion, kaon and eta, using the proton structure function, are calculated. We are looking for a relationship between the polarized distribution of mesons and the polarized structure of nucleons. We show that the meson polarized parton distributions leads to zero total spin for the concerned mesons, considering the orbital angular momentum of quarks and gluons inside the meson. Two separate Monte Carlo algorithms are applied to compute the polarized parton distributions of the kaon. Via the mass dependence of quark distributions, the distribution function of the eta meson is obtained. A new method by which the polarized sea quark distributions of protons are evolved separately which cannot be performed easily using the standard solution of DGLAP equations - is introduced. The mass dependence of these distributions is obtained, using the renormalization group equation which makes their evolutions more precise. Comparison between the evolved distributions and the available experimental data validates the suggested solutions for separated evolutions.

关键词： Valon model polarized chiral quark model constituent quark renormalization group equation evolution operator

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Nonperturbative Aspects of Axial Vector Vertex

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Communications in Theoretical Physics 2002年第4期37卷 461-464页

作者： ZONGHong－Shi CHANGChao－Hsi 等 DepartmentofPhysics NanjingUniversityNanjing210093China CCAST（WorldLaboratory） P.O.Box8730Beijing100080China

It is shown how the axial vector current of current quarks is related to that of constituent quarks within the framework of the global color symmetry *** dressing of the axial vector vertex and the quark self-energy functions are described by the inhomogeneous Bethe-Salpeter equation in the ladder approximation and the Schwinger Dyson equation in the rainbow approximation,respectively.

关键词： nonperturbative QCD constituent quark spontaneous chiral symmetry breaking

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