Optimal detectors for WIMP and 0-ν ββ searches : Identical high-pressure xenon gas TPCs?
Optimal detectors for WIMP and 0-ν ββ searches : Identical high-pressure xenon gas TPCs?
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用于 WIMP 和 0-ν ββ 搜索的最佳探测器：相同的高压氙气 TPC？
DOI：
10.1016/j.nima.2007.07.062
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发表时间：
2007
影响因子：
1.4
通讯作者：
D. Nygren
中科院分区：
文献类型：
--
作者：
D. Nygren
用高压气态氙（HPXe）代替液态氙（LXe）填充的时间投影室（TPC）似乎可以为136 Xe中的0-ν ββ衰变搜索提供上级能量分辨率，并在搜索WIMP时提供上级γ背景抑制。最大化0-ν ββ衰变探测器设计的初级闪烁探测效率的增强将实现用于两个目的的最佳设计。在这种情况下，存在一种有吸引力的协同作用：两种相同的HPV 16 TPC仅在同位素含量上不同，这将为任一信号的存在提供明显更有力的证据。对限制能量分辨率的重要因素的简单分析得出的结论是，在几百公斤级下一代搜索的最佳设计是相同的基于HPXe的TPC。需要仔细测量HPP 30对核反冲和电子反冲的闪烁和电离响应，以检验HPP 30在综合目标方面优于LPP 30的说法。
A time projection chamber (TPC) filled with high-pressure gaseous xenon (HPXe)—instead of liquid xenon (LXe)—appears likely to offer both superior energy resolution for the 0–ν ββ decay search in136Xe and superior γ-background rejection in the search for WIMPs. An augmentation to maximize the primary scintillation detection efficiency of the 0–ν ββ decay detector design will realize an optimum design for both purposes. In this scenario an attractive synergy exists: two identical HPXe TPCs differing only in isotopic content will provide significantly more robust evidence for the existence of either signal if present. A simple analysis of important factors that limit energy resolution leads to the conclusion that the optimal design for either next-generation search at the few hundred kg level is the same HPXe-based TPC. A careful measurement of the scintillation and ionization responses of HPXe to nuclear and electronic recoils is needed to test the claim of HPXe superiority to LXe for the combined goals.
DOI：
10.1016/j.nima.2004.06.024
发表时间：
2004-09
影响因子：
1.4
作者：
S. Kobayashi;N. Hasebe;T. Igarashi;M. Kobayashi;T. Miyachi;M. Miyajima;H. Okada;O. Okudaira;C. Tezuka;E. Yokoyama;T. Doke;E. Shibamura;V. Dmitrenko;S. Ulin;K. Vlasik
通讯作者：
S. Kobayashi;N. Hasebe;T. Igarashi;M. Kobayashi;T. Miyachi;M. Miyajima;H. Okada;O. Okudaira;C. Tezuka;E. Yokoyama;T. Doke;E. Shibamura;V. Dmitrenko;S. Ulin;K. Vlasik