5 research outputs found

    一种轻型长航程AUV的零攻角定深航行控制方法

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    本发明涉及分析及测量控制技术领域,具体涉及一种轻型长航程AUV的零攻角定深航行控制方法;一种轻型长航程AUV的零攻角定深航行控制方法,其特征在于,包括以下步骤:通过当前潜航深度和目标深度差值计算获取目标净浮力和目标俯仰角;分别对所述目标净浮力值和目标俯仰角进行动作解算,得到可变浮力执行机构控制量、可移动滑块和升降舵控制量;若可变浮力执行机构动作,则根据可变浮力执行机构控制量执行动作;若可移动滑块和升降舵动作,则根据可移动滑块和升降舵控制量执行动作。变浮力控制系统根据潜水器实时速度、俯仰角信息估计当前潜水器净浮力,最大程度不依靠先验信息,适用性强,使潜水器实现零净浮力定深航行

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

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    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 pνˉK+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 pνˉK+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 9.6×10339.6 \times 10^{33} years, competitive with the current best limits on the proton lifetime in this channel

    JUNO sensitivity on proton decay pνK+p → νK^{+} searches

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

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    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 pνˉK+ 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 pνˉK+ p\to \bar{\nu} K^+ is 36.9% ± 4.9% with a background level of 0.2±0.05(syst)±0.2\pm 0.05({\rm syst})\pm 0.2(stat) 0.2({\rm stat}) events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 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
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