一种交联型聚丙烯酰胺型毛细管电泳涂层柱的制备装置

本实用新型涉及毛细管电泳的制备装置，特别是一种交联型聚丙烯酰胺型毛细管电泳涂层柱的制备装置，包括反应容器及容器盖，容器盖密封插在反应容器内，容器盖上设有多个孔。所述容器盖上孔的个数为四个，分别为毛细管孔、放空孔、试剂孔及氦气孔；所述反应容器由特氟龙或玻璃或石英或高分子透明材料加工制成；所述氦气孔与氦气源之间设有调节阀。本实用新型的反应容器为透明材质制成，可对反应过程做动态观察；并可实现去除反应聚合液中溶解的氧，且可防止在聚合过程中氧气的再次溶解，进而减少反应时间，提高制柱的重复性。带填

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies