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| 1 | First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region. | Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,8: | 3 |
| 2 | CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches显示文摘The CDEX collaboration has been established for direct detection of light dark matter particles, using ultra-low energy threshold point-contact p-type germanium detectors, in China JinPing underground Laboratory(CJPL). The first 1 kg point-contact germanium detector with a sub-keV energy threshold has been tested in a passive shielding system located in CJPL. The outputs from both the point-contact P + electrode and the outside N + electrode make it possible to scan the lower energy range of less than 1 keV and at the same time to detect the higher energy range up to 3 MeV. The outputs from both P + and N + electrode may also provide a more powerful method for signal discrimination for dark matter experiment. Some key parameters, including energy resolution, dead time, decay times of internal X-rays, and system stability, have been tested and measured. The results show that the 1 kg point-contact germanium detector, together with its shielding system and electronics, can run smoothly with good performances. This detector system will be deployed for dark matter search experiments. | 康克军 岳赛 吴呈城 程建平 李元景 白杨 毕勇 常建平 陈楠 陈宁 陈庆豪 陈云华 庄又澄 邓智 杜强 宫辉 郝喜庆 何庆驹 胡鑫洄 黄瀚雄 黄腾锐 江灏 李浩斌 李荐民 李金 李军 李霞 李新颖 李学潜 李玉兰 廖恒毅 林枫凯 林欣德 刘书魁 吕岚春 马豪 毛绍基 覃建强 任杰 任婧 阮锡超 申满斌 Lakhwinder SINGH Manoj Kumar SINGH Arun Kumar SOMA 苏健 唐昌建 曾昭雄 王继敏 王力 王青 王子敬 吴世勇 吴蔚 吴玉成 幸浩洋 徐音 薛涛 杨丽桃 杨松纬 易难 喻纯旭 于昊 余训臻 曾雄辉 曾志 张岚 张蕴华 赵明刚 赵伟 钟苏宁 周祖英 朱敬军 朱维彬 朱学洲 朱忠华 | 2013 | Chinese Physics C2013,37,12: | 3 |
| 3 | First results on ^(76)Ge neutrinoless double beta decay from CDEX-1 experiment显示文摘We report the first results on ^(76)Ge neutrinoless double beta decay from stage one of the China dark-matter experiment(CDEX).A p-type point-contact high-purity germanium detector with a mass of 994 g has been installed to detect neutrinoless double beta decay events, as well as to directly detect dark matter particles. An exposure of 304 kg d has been analyzed over a wide spectral band from 500 keV to 3 MeV. The average event rate obtained was about 0.012 counts per keV per kg per day over the 2.039 MeV energy range. The half-life of ^(76)Ge neutrinoless double beta decay derived based on this result is T^(0ν)1/2>6.4×10^(22) yr(90% C.L.). An upper limit on the effective Majorana-neutrino mass of 5.0 eV has been achieved. | Li Wang Qian Yue KeJun Kang JianPing Cheng YuanJing Li TszKing Henry Wong ShinTed Lin JianPing Chang JingHan Chen QingHao Chen YunHua Chen Zhi Deng Qiang Du Hui Gong Li He QingJu He JinWei Hu HanXiong Huang TengRui Huang LiPing Jia Hao Jiang HauBin Li Hong Li JianMin Li Jin Li Jun Li Xia Li XueQian Li YuLan Li FongKay Lin ShuKui Liu Hao Ma JingLu Ma XingYu Pan Jie Ren XiChao Ruan ManBin Shen Vivek Sharma Lakhwinder Singh Manoj Kumar Singh Manoj Kumar Singh Arun Kumar Soma ChangJian Tang WeiYou Tang ChaoHsiung Tseng JiMin Wang Qing Wang ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue LiTao Yang SongWei Yang Nan Yi ChunXu Yu HaiJun Yu WeiHe Zeng XiongHui Zeng Zhi Zeng Lan Zhang YunHua Zhang MingGang Zhao Wei Zhao JiFang Zhou ZuYing Zhou JingJun Zhu WeiBin Zhu ZhongHua Zhu | 2017 | Science China(Physics,Mechanics & Astronomy)2017,60,7: | 3 |
| 4 | Globalization, national innovation systems and response of public policy 显示文摘 | LAKHWINDER SINGH | 2004 | International Journal of Technology Management and Sustainable Development2004,3,3: | 1 |
| 5 | FUZZY SATISFYING INTERACTIVE MULTIOBJECTIVE THERMAL POWER DISPATCH: SWT APPROACH显示文摘在多客观的优化,交易分析在决定大多数比较喜欢答案起一个重要作用。这篇论文基于代理人价值交易函数论述明确的交互交易分析决定最好损害的解决方案。在 themultiobjective 框架,热电源派遣问题在四目的 viz.cost, NO_X 排放, SO_X 排放和 CO_X 排放同时在哪个被最小化被承担。交互过程被以系统的方式调整目的相对重量用一个 weighting 方法实现。因此 weighting 方法便于在非劣等的领域模仿在冲突目的之间的交易关系。存取不在乎乐队,的利用模糊决策理论和决定制造者的相互作用 worthtrade 离开经由代理人被获得(SWT ) 目的工作。代理人价值交易函数在功能的空格被构造然后转变了成决定空格,因此代理人 worthtrade 离开目的工作通过最佳的重量模式联系决定制造者的偏爱到非劣等的解决方案。热力量派遣问题的最佳的答案被认为真实、反应的力量是损失获得。Decoupled 负担流动分析被执行发现传播损失。建议方法的有效性在 11 公共汽车上被表明, 17 线 IEEEsystem,三个发电机包括。 | Lakhwinder SINGH J.S. DHILLON | 2007 | Journal of Systems Science and Systems Engineering2007,16,1: | 1 |
| 6 | Limits on light WIMPs with a 1 kg-scale germanium detector at 160 eVee physics threshold at the China Jinping Underground Laboratory显示文摘We report results of a search for light weakly interacting massive particle(WIMP) dark matter from the CDEX-1 experiment at the China Jinping Underground Laboratory(CJPL). Constraints on WIMP-nucleon spin-independent(SI) and spin-dependent(SD) couplings are derived with a physics threshold of 160 eVee, from an exposure of 737.1 kg-days. The SI and SD limits extend the lower reach of light WIMPs to 2 GeV and improve over our earlier bounds at WIMP mass less than 6 GeV. | 杨丽桃 李浩斌 岳骞 康克军 程建平 李元景 王子敬 M.Agartioglu 安海鹏 常建平 陈景瀚 陈云华 邓智 杜强 宫辉 何力 胡津纬 胡庆东 黄瀚雄 贾历平 江灏 李红 李荐民 李金 李霞 李学潜 李玉兰 林枫凯 林兴德 刘书魁 刘仲智 马豪 马菁露 潘辉 任杰 阮锡超 B.Sevda Vivek Sharma 申满斌 Lakhwinder Singh Manoj Kumar Singh 唐昌建 唐维优 田阳 王继敏 王力 王青 王轶 吴世勇 吴玉成 幸浩洋 徐音 薛涛 杨松伟 易难 喻纯旭 于海军 岳剑峰 曾雄辉 曾鸣 曾志 张云华 赵明刚 赵伟 周济芳 周祖英 朱敬军 朱忠华 | 2018 | Chinese Physics C2018,42,2: | 1 |
| 7 | Study of the material photon and electron background and the liquid argon detector veto efficiency of the CDEX-10 experiment显示文摘The China Dark Matter Experiment(CDEX) is located at the China Jinping Underground Laboratory(CJPL) and aims to directly detect the weakly interacting massive particles(WIMP) flux with high sensitivity in the low mass region. Here we present a study of the predicted photon and electron backgrounds including the background contribution of the structure materials of the germanium detector, the passive shielding materials, and the intrinsic radioactivity of the liquid argon that serves as an anti-Compton active shielding detector. A detailed geometry is modeled and the background contribution has been simulated based on the measured radioactivities of all possible components within the GEANT4 program. Then the photon and electron background level in the energy region of interest(<10^(-2)events·kg^1·day^(-1)·ke V^(-1)(cpkkd)) is predicted based on Monte Carlo simulations. The simulated result is consistent with the design goal of the CDEX-10 experiment, 0.1cpkkd, which shows that the active and passive shield design of CDEX-10 is effective and feasible. | 苏健 曾志 马豪 岳骞 程建平 常建平 陈楠 陈宁 陈庆豪 陈云华 庄又澄 邓智 杜强 宫辉 郝喜庆 何庆驹 黄瀚雄 黄腾锐 江灏 康克军 李浩斌 李荐民 李金 李军 李霞 李新颖 李学潜 李玉兰 李元景 廖恒毅 林枫凯 林欣德 刘书魁 吕岚春 毛绍基 覃建强 任杰 任婧 阮锡超 申满斌 SINGH Lakhwinder SINGH Manoj Kumar SOMA Arun Kumar 唐昌建 曾昭雄 王继敏 王力 王青 王子敬 吴世勇 吴玉成 幸浩洋 徐音 薛涛 杨丽桃 杨松纬 易难 喻纯旭 于昊 余训臻 曾雄辉 张岚 张蕴华 赵明刚 赵伟 周祖英 朱敬军 朱维彬 朱雪洲 朱忠华 | 2015 | Chinese Physics C2015,39,3: | 0 |
| 8 | BEST WEIGHT PATTERN EVALUATION BASED SECURITY CONSTRAINED POWER DISPATCH ALGORITHM显示文摘当时,这篇论文论述在承诺的产生单位之中决定力量需求的分配的方法论象会一样最小化目的数字物理;技术系统限制。过程认为二是在他们的目标的相关性之上基于活跃力量或反应发电的 decoupled 问题。两个都,这些问题顺序被解决了完成最佳的分配活跃;反应发电当时最小化操作花费的、气体的污染物质排放目的;有与发电机一起操作限制的系统的考虑的活跃力量传播损失禁止了操作地区;传播线流动限制。活跃;反应力量线流动在概括产生移动分发因素(GGDF ) 的帮助下被获得;分别地概括了 Z 公共汽车分发因素(GZBDF ) 。当采用 weighting 方法时,第一个问题在分到目的最好的重量是坚定的多客观的在框架被解决;处于第二个问题,系统的活跃力量损失是到系统限制的最小化的题目。建议方法的有效性在 30 公共汽车 IEEE 力量系统上被表明。 | Lakhwinder SINGH J.S. DHILLON | 2007 | Journal of Systems Science and Systems Engineering2007,16,3: | 0 |
| 9 | Performances of a prototype point-contact germanium detector immersed in liquid nitrogen for light dark matter search显示文摘The CDEX-10 experiment searches for light weakly interacting massive particles, a form of dark matter, at the China Jinping Underground Laboratory, where approximately 10 kg of germanium detectors are arranged in an array and immersed in liquid nitrogen. Herein, we report on the experimental apparatus, detector characterization, and spectrum analysis of one prototype detector. Owing to the higher rise-time resolution of the CDEX-10 prototype detector as compared with CDEX-1 B, we identified the origin of an observed category of extremely fast events. For data analysis of the CDEX-10 prototype detector, we introduced and applied an improved bulk/surface event discrimination method. The results of the new method were compared to those of the CDEX-1 B spectrum. Both sets of results showed good consistency in the 0-12 ke Vee energy range, except for the 8.0 keV K-shell X-ray peak from the external copper. | Hao Jiang LiTao Yang Qian Yue KeJun Kang JianPing Cheng YuanJing Li Henry Tsz-King Wong M.A?artio?lu HaiPeng An JianPing Chang JingHan Chen YunHua Chen Zhi Deng Qiang Du Hui Gong Li He Jin Wei Hu QingDong Hu HanXiong Huang LiPing Jia HauBin Li Hong Li Jian Min Li Jin Li Xia Li XueQian Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu YuanYuan Liu ZhongZhi Liu Hao Ma JingLu Ma Hui Pan Jie Ren XiChao Ruan B.Sevda Vivek Sharma ManBin Shen Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang JiMin Wang Li Wang Qing Wang Yi Wang ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue SongWei Yang Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue XiongHui Zeng Ming Zeng Zhi Zeng FengShou Zhang YunHua Zhang MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu ZhongHua Zhu | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,3: | 0 |