Suman Baral 
Thomas-Fermi Model for Mesons and Noise Subtraction Techniques in Lattice QCD [PDF ebook] 

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This thesis make significant contributions to both the numerical and analytical aspects of particle physics, reducing the noise associated with matrix calculations in quantum chromodynamics (QCD) and modeling multi-quark mesonic matters that could be used to investigate particles previously unseen in nature. Several methods are developed that can reduce the statistical uncertainty in the extraction of hard-to-detect lattice QCD signals from disconnected diagrams. The most promising technique beats competing methods by 1700 percent, leading to a potential decrease in the computation time of quark loop quantities by an order of magnitude. This not only increases efficiency but also works for QCD matrices with almost-zero eigenvalues, a region where most QCD algorithms break down. This thesis also develops analytical solutions used to investigate exotic particles, specifically the Thomas-Fermi quark model, giving insight into possible new states formed from mesonic matter. The main benefit of this model is that it can work for a large number of quarks which is currently almost impossible with lattice QCD. Patterns of single-quark energies are observed which give the first a priori indication that stable octa-quark and hexadeca-quark versions of the charmed and bottom Z-meson exist.

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表中的内容

Chapter1: New noise subtraction methods for lattice QCD calculations.- Chapter2: TF model for mesonic matters

关于作者

Suman Baral holds positions at the Everest Institute of Science and Technology, Kathmandu, Nepal and Neural Innovations LLC, Waco, Texas. He received his Ph D from Baylor University in 2018.

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语言 英语 ● 格式 PDF ● 网页 72 ● ISBN 9783030309046 ● 文件大小 2.6 MB ● 出版者 Springer International Publishing ● 市 Cham ● 国家 CH ● 发布时间 2019 ● 下载 24 个月 ● 货币 EUR ● ID 7253432 ● 复制保护 社会DRM

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