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arXiv 0909.1063physics.ins-detastro-ph.IMhep-ex
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低至4 keV的单能核反冲液体氙的闪烁效率和电离产额

Scintillation efficiency and ionization yield of liquid xenon for mono-energetic nuclear recoils down to 4 keV

A. Manzur, A. Curioni, L. Kastens, D. N. McKinsey, K. Ni, T. Wongjirad

摘要:

液态氙(LIPE)是一种用于探测弱相互作用大质量粒子(WIMPs)形式的暗物质的实验的优良材料。低能量检测阈值对于灵敏的WIMP搜索是必不可少的。对低能核反冲的相对闪烁效率(Leff)和电离产额的理解仅限于能量低于10 keV的情况。在本文中,我们提出了新的测量,扩展到4千电子伏的能量,发现Leff随能量的降低而降低。我们还测量了闪烁效率的淬火由于电场在LIGO,发现没有显着的字段依赖性。

英文摘要:

Liquid Xenon (LXe) is an excellent material for experiments designed to detect dark matter in the form of Weakly Interacting Massive Particles (WIMPs). A low energy detection threshold is essential for a sensitive WIMP search. The understanding of the relative scintillation efficiency (Leff) and ionization yield of low energy nuclear recoils in LXe is limited for energies below 10 keV. In this paper, we present new measurements that extend the energy down to 4 keV, finding that Leff decreases with decreasing energy. We also measure the quenching of scintillation efficiency due to the electric field in LXe, finding no significant field dependence.

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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