2008年
A Novel Quasi-Particle Picture of Massless and Massive Quarks Coupled with a Massive Boson at Finite Temperature and Its Effect on the Dilepton Production Rate
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT
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- 巻
- 号
- 174
- 開始ページ
- 262
- 終了ページ
- 265
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- 出版者・発行元
- PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE
We investigate the spectral properties of massless and massive quarks coupled with scalar and pseudo-scalar bosons at finite temperature in Yukawa models at the one-loop order. We show that the quak spectral function has a three-peak structure even for a finite but small quark mass. The behavior of the spectral function and the pole structure of the propagator are analyzed as functions of temperature and masses of the quark and bosons. Effects of the anomalous quark spectrum on the dilepton pruduction rate are briefly mentioned.
- リンク情報
- ID情報
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- ISSN : 0375-9687
- Web of Science ID : WOS:000260439700039