Despite the multiple and convincing evidence of the existence of dark matter (DM) in our Universe, its detection is one of the most pressing questions in particle physics. As of today, there is no unambiguous hint which could clarify the particle nature of DM. For these reasons, a huge experimental effort is ongoing, trying to realize experiments which can probe the particle properties of DM. In particular, direct search experiments are trying to cover the largest possible mass range, from a few MeVs up to TeVs. Particularly suited for the sub-GeV mass region are detectors containing light nuclei, which are sensitive to the scattering of light DM candidates. Among them, we investigate a carbon-based absorber to explore DM masses down to the MeV region. Thanks to their cryogenic properties (high Debye temperature and long-lived phonon modes), carbon-based materials operated as low temperature calorimeters could reach an energy threshold in the eV range and would allow for the exploration of new parameters of the DM–nucleus cross section. Despite several proposals, the possibility of operating a carbon-based cryogenic detector is yet to be demonstrated. In this contribution, the preliminary results obtained with a diamond absorber operated with a TES temperature sensor will be reported. The potential of such a detector in the current landscape of DM searches will also be illustrated.

中文翻译：

---

用于低质量暗物质搜索的金刚石低温探测器的操作

尽管有多种令人信服的证据表明我们的宇宙中存在暗物质 (DM)，但它的检测是粒子物理学中最紧迫的问题之一。截至今天，没有明确的提示可以澄清 DM 的粒子性质。由于这些原因，正在进行大量的实验工作，试图实现可以探测 DM 粒子特性的实验。特别是，直接搜索实验试图覆盖尽可能大的质量范围，从几个 MeV 到 TeV。特别适合亚 GeV 质量区域的是包含光核的检测器，这些检测器对光 DM 候选物的散射很敏感。其中，我们研究了一种碳基吸收剂，以探索低至 MeV 区域的 DM 质量。由于它们的低温特性（高德拜温度和长寿命声子模式），用作低温量热计的碳基材料可以达到 eV 范围内的能量阈值，并允许探索 DM-核横截面的新参数。尽管提出了多项建议，但尚未证明操作碳基低温探测器的可能性。在这篇文章中，将报告使用带有 TES 温度传感器的金刚石吸收器获得的初步结果。还将说明这种检测器在当前 DM 搜索领域的潜力。在这篇文章中，将报告使用带有 TES 温度传感器的金刚石吸收器获得的初步结果。还将说明这种检测器在当前 DM 搜索领域的潜力。在这篇文章中，将报告使用带有 TES 温度传感器的金刚石吸收器获得的初步结果。还将说明这种检测器在当前 DM 搜索领域的潜力。