教師資料查詢 | 類別: 期刊論文 | 教師: 王尚勇 Shang-Yung Wang (瀏覽個人網頁)

標題:Enhanced photon production from quark-gluon plasma : Finite-lifetime effect
學年89
學期1
出版(發表)日期2001/01/01
作品名稱Enhanced photon production from quark-gluon plasma : Finite-lifetime effect
作品名稱(其他語言)
著者Wang, Shang-Yung; Boyanovsky, Daniel
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review D (Particles and Fields) 63(5), 051702(5 pages)
摘要Photon production from a thermalized quark-gluon plasma of finite lifetime is studied directly in real time with a nonequilibrium formulation that includes off-shell (energy nonconserving) effects. To lowest order we find that production of direct photons form a quark-gluon plasma of temperature T ~ 200 MeV and lifetime t ~ 10-20 fm/c is strongly enhanced by off-shell (anti)quark bremsstrahlung q(\bar{q})->q(\bar{q})\gamma. The yield from this nonequilibrium finite-lifetime effect dominates over those obtained from higher order equilibrium rate calculations in the range of energy E > 2 GeV and falls off with a power law for E >> T.
關鍵字
語言英文
ISSN0556-2821
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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