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arXiv 1607.01673hep-exnucl-ex
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用ALICE - A探针测量LHC的p-A中的前向直接光子产生,用于核PDF和饱和

Measurement of forward direct photon production in p-A at the LHC with ALICE - A probe for nuclear PDFs and saturation

Thomas Peitzmann

摘要:

小x部分子密度的探针和预测的胶子饱和的影响进行了讨论。在非常低的x和中间Q,只有强子观测的结果在大型强子对撞机,不提供明确的信息。它表明,在LHC的前向快度的直接光子的测量是特别有希望提供一个独特的信号。我们进一步讨论了在ALICE实验中使用探测器升级进行此类测量的可能性,并介绍了正在进行的研发活动。

英文摘要:

Probes for the small-x parton densities and predicted effects of gluon saturation are discussed. At very low x and intermediate Q, only results on hadronic observables at the LHC are available, which do not provide unambiguous information. It is shown that the measurement of direct photons at forward rapidity at the LHC is particularly promising to provide a unique signal. We further discuss the possibilities to perform such measurements with a detector upgrade in the ALICE experiment and present the R&D activities ongoing.

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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