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arXiv 0810.3817hep-ph
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LHC高能γ-γ碰撞中产生π ^+ π ^-对的硬Pomeron-Odderon干涉效应

Hard Pomeron-Odderon interference effects in the production of pi^+pi^- pairs in high energy gamma-gamma collisions at the LHC

B. Pire, L. Szymanowski, F. Schwennsen, S. Wallon

摘要:

我们估计了LHC超周边碰撞中高能光子光子碰撞中两个介子对的产生。我们表明,电荷不对称性的研究可能会揭示微扰Odderon的存在,并讨论预期在大型强子对撞机的具体事件率。在质子-质子碰撞和伽马-伽马能量\sqrt{s_{γγ}} \approx 20 GeV的中等值的情况下,预计会有相当大的速率和不对称性。质子-质子碰撞将受益于由于大的有效伽马-伽马光度而产生的高速率,而离子-离子碰撞由于超周边碰撞的可能性而具有稍低的速率,并且由于强相互作用而降低了背景。

英文摘要:

We estimate the production of two meson pairs in high energy photon photon collisions produced in ultraperipheral collisions at LHC. We show that the study of charge asymmetries may reveal the existence of the perturbative Odderon and discuss the concrete event rates expected at the LHC. Sizable rates and asymmetries are expected in the case of proton-proton collisions and medium values of gamma-gamma energies \sqrt{s_{γγ}} \approx 20GeV. Proton-proton collisions will benefit from a high rate due to a large effective gamma-gamma luminosity and ion-ion collisions with a somewhat lower rate from the possibility to trigger on ultraperipheral collisions and a reduced background from strong interactions.

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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