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arXiv 0907.4012hep-ph
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强耦合引起的光子峰

A Photon Peak due to Strong Coupling

Jorge Casalderrey-Solana

摘要:

我们表明,如果一个无味的矢量介子仍然束缚后解除禁闭,如果其在夸克-胶子等离子体的极限速度是亚光速,那么这个介子产生一个明显的峰的热光子发射的等离子体的光谱。我们还表明,这种效果是一个普遍的所有强耦合,大$\nc$等离子体与重力对偶。对于$J/Ψ$,相应的峰值位于3和5 GeV之间,可以在LHC上观察到。

英文摘要:

We show that if a flavour-less vector meson remains bound after deconfinement, and if its limiting velocity in the quark-gluon plasma is subluminal, then this meson produces a distinct peak in the spectrum of thermal photons emitted by the plasma. We also demonstrate that this effect is a universal property of all strongly coupled, large-$\nc$ plasmas with a gravity dual. For the $J/Ψ$ the corresponding peak lies between 3 and 5 GeV and could be observed at the LHC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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