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arXiv 0811.0368hep-ph
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通过LHC强胶子场跟踪快速小色偶极子

Tracking fast small color dipoles through strong gluon fields at the LHC

L. Frankfurt, M. Strikman, M. Zhalov

摘要:

我们认为,过程伽马+A \to J/psi +间隙+ X在大的动量转移提供了一个快速和有效的方法来测试一个新的微扰QCD制度的强吸收的相互作用的碰撞能量。我们发现,已经在大型强子对撞机上运行的第一个重离子将允许通过超周边碰撞来研究这种反应,从而探测大小约为0.2 fm的q \bar q偶极子与核介质的相互作用,直到x ~ 10^{-5}。

英文摘要:

We argue that the process gamma +A \to J/psi + gap + X at large momentum transfer provides a quick and effective way to test onset of a novel perturbative QCD regime of strong absorption for the interaction of small dipoles at the collider energies. We find that already the first heavy ion run at the LHC will allow to study this reaction with sufficient statistics via ultraperipheral collisions hence probing the interaction of q\bar q dipoles of sizes ~ 0.2 fm with nuclear media down to x ~ 10^{-5}.

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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