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Recent progress in QCD condensate evaluations and sum rules

QCD凝縮及び和則の最近の進展

Gubler, P. ; 佐藤 大輔*

Gubler, P.; Sato, Daisuke*

QCD和則及び高温・高密度におけるハドロンの研究の最近の進展をレビューする。特に、格子QCD・カイラル摂動論・実験的測定などにより近年大きく進展したQCD凝縮について詳しく議論する。さらに、QCD和則の新しい解析手法も紹介し、古典的な方法と比較する。また、高温・高密度におけるハドロンの性質変化の研究や最近導出された有限温度に応用可能の厳密な和則についてもレビューする。

We review the recent status of the QCD sum rule approach to study the properties of hadrons in vacuum and in hot or dense matter. Special focus is laid on the progress made in the evaluation of the QCD condensates, which are the input of all QCD sum rule calculations, and for which much new information has become available through high precision lattice QCD calculations, chiral perturbation theory and experimental measurements. Furthermore, we critically examine common analysis methods for QCD sum rules and contrast them with potential alternative strategies. The status of QCD sum rule studies investigating the modification of hadrons at finite density as well as recent derivations of exact sum rules applicable to finite temperature spectral functions, are also reviewed.

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パーセンタイル:92.89

分野:Physics, Nuclear

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