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arXiv 1903.04151hep-phphysics.optics
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在LHC和laser束实验中扩展类轴子粒子作为共振的约束

Extending the constraint for axion-like particles as resonances at the LHC and laser beam experiments

C. Baldenegro, S. Hassani, C. Royon, L. Schoeffel

摘要:

我们研究了在大型强子对撞机(LHC)上发现类轴子粒子(ALP)的可能性,类轴子粒子是弱耦合到标准模型场的赝标量。我们的重点是耦合到电磁场,这将诱导光的异常光的散射光的ALP。这可以直接在质子和重离子碰撞中的LHC的超周边碰撞中的光子对的中心排他产生中探索。我们认为非标准的碰撞模式的大型强子对撞机,如氩-氩碰撞在$\sqrt{s_{NN}} = 7$ TeV和质子-铅碰撞在$\sqrt{s_{NN}} = 8.16$ TeV访问区域中的参数空间中的补充以前考虑的铅-铅或质子-质子碰撞。此外,我们表明,使用激光束的相互作用,我们可以约束ALP的折射率的共振偏差,引起的异常光的光散射效应。如果我们结合上述方法,ALP可以探测到从eV尺度到TeV尺度的广泛质量范围。

英文摘要:

We study the discovery potential of axion-like particles (ALP), pseudo-scalars weakly coupled to Standard Model fields, at the Large Hadron Collider (LHC). Our focus is on ALPs coupled to the electromagnetic field, which would induce anomalous scattering of light-by-light. This can be directly probed in central exclusive production of photon pairs in ultra-peripheral collisions at the LHC in proton and heavy ion collisions. We consider non-standard collision modes of the LHC, such as argon-argon collisions at $\sqrt{s_{NN}} = 7$ TeV and proton-lead collisions at $\sqrt{s_{NN}} = 8.16$ TeV to access regions in the parameter space complementary to the ones previously considered for lead-lead or proton-proton collisions. In addition, we show that, using laser beam interactions, we can constrain ALPs as resonant deviations in the refractive index, induced by anomalous light-by-light scattering effects. If we combine the aforementioned approaches, ALPs can be probed in a wide range of masses from the eV scale up to the TeV scale.

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