The Scintillating Bubble Chamber (SBC) Experiment for Dark Matter and Reactor CEvNS
The Scintillating Bubble Chamber (SBC) Experiment for Dark Matter and Reactor CEvNS
复制标题
暗物质闪烁气泡室 (SBC) 实验和反应堆 CEvNS
DOI：
10.22323/1.390.0632
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
P. Giampa
中科院分区：
文献类型：
--
作者：
P. Giampa
闪烁气泡室（SBC）实验是一种新的低背景技术，旨在探测低质量（0.7-7 GeV/c2）WIMP相互作用和反应堆中微子（CEvNS）的相干散射。探测器由一个充满液态氩（LAr）的石英罐组成，其中加入了O（100ppm）的液态氙（LXe）作为波长移位器。通过机械控制的活塞将目标流体降压至过热状态。与LAr+100 ppm LXe相互作用的粒子可以产生热量（气泡）和闪烁光，具体取决于能量强度和密度。探测器还配备了摄像头来拍摄气泡，硅光电倍增器来测量闪烁光，以及压电声传感器来聆听气泡的形成。通过结合这些观测数据，SBC探测器的目标是达到100 eV的核反冲阈值，对于0.7 GeV/c2的WIMP质量，预计WIMP灵敏度为3.0 × 10−43 cm2。在本文中，我们将介绍SBC实验的总体设计，并提供费米实验室现场正在进行的建设的最新情况。最后，我们将讨论SNOLAB安装/运行和反应堆CEvNS搜索的合作计划。
The ScintillatingBubbleChamber (SBC) experiment is a novel low-background technique aimed at detecting low-mass (0.7-7 GeV/c2)WIMP interactions and coherent scattering of reactor neutrinos (CEvNS). The detector consists of a quartz-jar filled with liquid Argon (LAr), which is spiked with O(100 ppm) of liquid Xenon (LXe) acting as a wavelength shifter. The target fluid is depressurized into a super-heated state by a mechanically controlled piston. Particles interacting with the LAr+100 ppm LXe can generate heat (bubbles) and scintillation light, depending on the energy intensity and density. The detector is further equipped with cameras to take pictures of the bubbles, Silicon-Photo-Multipliers to measure the scintillation light, and piezo-acoustic sensors to listen to the bubble’s formation. By combining these observables, the SBC detector is aiming to reach a threshold for nuclear recoils of 100 eV and a projected WIMP-sensitivity of 3.0x10−43 cm2, for a WIMP mass of 0.7 GeV/c2. In this paper, we will present the overall design of the SBC experiment and provide an update on the ongoing construction at the Fermilab site. Finally, we will discuss the collaboration’s plans for the SNOLAB installation/operation and the reactor CEvNS search.
影响因子：
8.6
作者：
Akerib, D. S.;Alsum, S.;Zhang, C.
通讯作者：
Zhang, C.