老年人移动支付接受行为的影响因素及其机制研究

目的结合老年人个体特征、移动支付技术特点和社会环境,探讨北京城区老年人移动支付使用意愿影响因素及其作用机制。方法随机抽样选取668名北京老年居民进行移动支付接受行为问卷调查,根据调查结果对建立的老年人移动支付技术接受模型进行假设检验和路径系数分析。结果感知有用性和社会影响是老年人移动支付使用意愿的直接影响因素,其中感知有用性影响程度最大。感知易用性通过感知有用性间接影响使用意愿,感知风险性和认知能力对老年人移动支付使用意愿影响不显著。结论感知风险性并不影响老年人移动支付使用意愿,&ldquo;方便有用&rdquo;才是老年人接受使用移动支付首要考虑要素,本研究为促进老年人接受新事物和新技术提供实证支持。</p

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