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| 1 | First dark matter search results from the PandaX-Ⅰ experiment显示文摘We report on the first dark-matter(DM)search results from PandaX-I,a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory.In the 37-kg liquid xenon target with 17.4 live-days of exposure,no DM particle candidate event was found.This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results.The minimum upper limit,3.7×10-44cm2,for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49 GeV/c2at 90%confidence level. | XIAO MengJiao XIAO Xiang ZHAO Li CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HU Jie HUANG XingTao JI XiangDong JU YongLin LEI SiAo LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing STEPHENSON Scott TAN AnDi TARL Greg WANG HongWei WANG JiMin WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIE PengWei YOU YingHui ZENG XiongHui ZHANG Hua ZHANG Tao ZHU ZhongHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，11： | 10 |
| 2 | PandaX: a liquid xenon dark matter experiment at CJPL显示文摘PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay search.The central vessel was designed to accommodate a staged target volume increase from initially 120 kg(stage I)to 0.5 t(stage II)and eventually to a multi-ton scale.The experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,China.The detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional scintillation.In this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented. | CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HE Ming HU Jie HUANG XingTao JI XiangDong JU YongLin LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing SHI YuJie STEPHENSON Scott TAN AnDi TARLé Greg WANG HongWei WANG JiMing WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIAO MengJiao XIAO Xiang XIE PengWei YE Tao YOU YingHui ZEN XiongHui ZHANG Hua ZHANG Tao ZHAO HaiYing ZHAO Li ZHOU XiaoPeng ZHU ZhongHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，8： | 9 |
| 3 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 6 |
| 4 | A LN2-based cooling system for a next-generation liquid xenon dark matter detector显示文摘In recent years, cooling technology for liquid xenon(LXe) detectors has advanced driven by the development of dark matter(DM) detectors with target mass in the 100–1000 kg range. The next generation of DM detectors based on LXe will be in the 50,000 kg(50 t)range requiring more than 1 k W of cooling power. Most of the prior cooling methods become impractical at this level.For cooling a 50 t scale LXe detector, a method is proposed in which liquid nitrogen(LN2) in a small local reservoir cools the xenon gas via a cold finger. The cold finger incorporates a heating unit to provide temperature regulation. The proposed cooling method is simple, reliable, and suitable for the required long-term operation for a rare event search. The device can be easily integrated into present cooling systems, for example the ‘‘Cooling Bus’ ’employed for the Panda X I and II experiments. It is still possible to cool indirectly with no part of the cooling or temperature control system getting in direct contact with the clean xenon in the detector. Also, the cooling device can be mounted at a large distance, i.e., the detector is cooled remotely from a distance of 5–10 m. The method was tested in a laboratory setup at Columbia University to carry out different measurements with a small LXe detector and behaved exactly as predicted. | Karl Ludwig Giboni Pratibha Juyal Elena Aprile Yun Zhang Junji Naganoma | 2020 | Nuclear Science and Techniques2020，31，8： | 2 |
| 5 | Erratum:A Search for Solar Axions and Anomalous Neutrino Magnetic Moment with the Complete PandaX-Ⅱ Data[CHIN.PHYS.LETT.38(2021)011301]显示文摘In our published letter,[1]we have identified a minor error in Figs.2 and 3.Instead,we have 2111 events in these two plots with 646,249,382,and 834 events in Run 9(20.0 ton·day),Run 10(19.4 ton·day),Run 11–1(24.2 ton·day),and Run 11–2(37.1 ton·day).The mistake is due to an incorrect application of a small energy non-linearity(known as the BLS non-linearity)in making plots,but has no impact to the final results.Figures 2 and 3 are now updated in this note. | 周小朋 曾鑫宁 宁旭阳 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 程晨 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄焱 黄彦霖 黄周 季向东 巨永林 李帅杰 刘华萱 刘江来 芦晓盈 马文博 马余刚 冒亚军 孟月 倪恺翔 宁金华 任祥祥 商长松 申国防 司琳 谈安迪 王安庆 王宏伟 王萌 王秋红 王思广 王为 王秀丽 王舟 武蒙蒙 吴世勇 邬维浩 夏经铠 肖梦姣 谢鹏伟 燕斌斌 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 张丹 张涛 赵力 郑其斌 周济芳 周宁 | 2021 | Chinese Physics Letters2021，38，10： | 2 |
| 6 | Panda X-III: Searching for neutrinoless double beta decay with high pressure ^(136)Xe gas time projection chambers显示文摘Searching for the neutrinoless double beta decay(NLDBD)is now regarded as the topmost promising technique to explore the nature of neutrinos after the discovery of neutrino masses in oscillation experiments.Panda X-III(particle and astrophysical xenon experiment III)will search for the NLDBD of136Xe at the China Jin Ping Underground Laboratory(CJPL).In the first phase of the experiment,a high pressure gas Time Projection Chamber(TPC)will contain 200 kg,90%136Xe enriched gas operated at10 bar.Fine pitch micro-pattern gas detector(Microbulk Micromegas)will be used at both ends of the TPC for the charge readout with a cathode in the middle.Charge signals can be used to reconstruct the electron tracks of the NLDBD events and provide good energy and spatial resolution.The detector will be immersed in a large water tank to ensure~5 m of water shielding in all directions.The second phase,a ton-scale experiment,will consist of five TPCs in the same water tank,with improved energy resolution and better control over backgrounds. | Xun Chen Chang Bo Fu Javier Galan Karl Giboni Franco Giuliani Ling Hui Gu Ke Han Xiang Dong Ji Heng Lin Jiang Lai Liu Kai Xiang Ni Hiroki Kusano Xiang Xiang Ren Shao Bo Wang Yong Yang Dan Zhang Tao Zhang Li Zhao Xiang Ming Sun Shou Yang Hu Si Yu Jian Xing Long Li Xiao Mei Li Hao Liang Huan Qiao Zhang Ming Rui Zhao Jing Zhou Ya Jun Mao Hao Qiao Si Guang Wang Ying Yuan Meng Wang Amir N.Khan Neill Raper Jian Tang Wei Wang Jia Ning Dong Chang Qing Feng Cheng Li Jian Bei Liu Shu Bin Liu Xiao Lian Wang Dan Yang Zhu Juan F.Castel Susana Cebri'an Theopisti Dafni Javier G.Garza Igor G.Irastorza Francisco J.Iguaz Gloria Luz ′on Hector Mirallas Stephan Aune Eric Berthoumieux Yann Bedfer Denis Calvet Nicole d'Hose Alain Delbart Maria Diakaki Esther Ferrer-Ribas Andrea Ferrero Fabienne Kunne Damien Neyret Thomas Papaevangelou Franck Sabatie Maxence Vanderbroucke AnDi Tan Wick Haxton Yuan Mei Chinorat Kobdaj Yu-Peng Yan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，6： | 2 |
| 7 | Searching for neutrino-less nouble neta necay of 136Xe with PandaX-Ⅱ liquid xenon detector显示文摘We report the Neutrino-less Double Beta Decay(NLDBD)search results from PandaX-II dual-phase liquid xenon time projection chamber.The total live time used in this analysis is 403.1 days from June 2016 to August 2018.With NLDBD-optimized event selection criteria,we obtain a fiducial mass of 219 kg of natural xenon.The accumulated xenon exposure is 242 kg·yr,or equivalently 22.2 kg·yr of 136Xe exposure.At the region around 136Xe decay Q-value of 2458 keV,the energy resolution of PandaX-II is 4.2%.We find no evidence of NLDBD in PandaX-II and establish a lower limit for decay half-life of 2.1 ×10^23 yr at the 90%confidence level,which corresponds to an effective Majorana neutrino mass mββ<(1.4-3.7) eV.This is the first NLDBD result reported from a dual-phase xenon experiment. | 倪恺翔 赖奕辉 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 崔祥仪 樊英杰 方德清 符长波 耿立升 Karl Giboni Franco Giuliani 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄焱 黄彦霖 黄周 吉鹏 季向东 巨永林 梁昆 刘华萱 刘江来 马文博 马余刚 冒亚军 孟月 Parinya Namwongsa 宁金华 宁旭阳 任祥祥 商长松 司琳 谈安迪 王安庆 王宏伟 王萌 王秋红 王思广 王秀丽 王舟 武蒙蒙 吴世勇 夏经铠 肖梦姣 谢鹏伟 燕斌斌 杨继军 杨勇 喻纯旭 袁鞠敏 张丹 张宏光 张涛 赵力 郑其斌 周济芳 周宁 周小朋 | 2019 | Chinese Physics C2019，43，11： | 1 |
| 8 | PandaX实验的进展与展望显示文摘PandaX是位于四川的中国锦屏地下实验室(CJPL)内的,利用氙作为工作物质,探测暗物质等其它极稀有事件的大型地下粒子探测实验计划。Panda X探测器中的氙工作在气液两相的模式。通过检测液相和气相中闪烁光强的比例,实现对目标粒子包括WIMP和Axion等疑似信号的鉴别。Panda X已顺利完成了有效区体积约为120 kg氙的一期计划,目前正在运行实施有效区体积约为500 kg氙的二期计划。在WIMP质量为45 Ge V/c^2附近,探测灵敏度达2.97×10^(-45)cm^2(90%置信度),没有发现WIMP疑似信号。本工作介绍了Panda X一期和二期的进展,以及后续升级计划,其中包括升级Panda X的时间投影室至4吨,建造用于屏蔽岩石放射性本底的水屏蔽,以及^(136)Xe双贝塔衰变的研究计划等。 | 符长波 陈勋 陈云华 崔祥仪 方德清 Karl Giboni Franco Giuliani 韩柯 季向东 巨永林 刘江来 马余刚 冒亚军 任祥祥 谈安迪 王宏伟 王萌 王秋宏 王思广 吴士勇 肖梦蛟 谢鹏伟 杨勇 张宏光 张涛 赵力 周宁 周小鹏 PandaX-II项目合作组 | 2017 | 原子核物理评论2017，34，3： | 0 |
| 9 | An improved evaluation of the neutron background in the PandaX-Ⅱ experiment显示文摘In dark matter direct detection experiments,neutron is a serious source of background,which can mimic the dark matter-nucleus scattering signals.In this paper,we present an improved evaluation of the neutron background in the PandaX-II dark matter experiment by a novel approach.Instead of fully relying on the Monte Carlo simulation,the overall neutron background is determined from the neutron-induced high energy signals in the data.In addition,the probability of producing a dark-matter-like background per neutron is evaluated with a complete Monte Carlo generator,where the correlated emission of neutron(s)andγ(s)in the(α,n)reactions and spontaneous fissions is taken into consideration.With this method,the neutron backgrounds in the Run 9(26-ton-day)and Run 10(28-ton-day)data sets of PandaX-II are estimated to be(0.66±0.24)and(0.47±0.25)events,respectively. | QiuHong Wang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui YingJie Fan DeQing Fang ChangBo Fu LiSheng Geng Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo Ke Han ChangDa He Di Huang Yan Huang YanLin Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju YiHui Lai Kun Liang HuaXuan Liu JiangLai Liu WenBo Ma YuGang Ma YaJun Mao Yue Meng Parinya Namwongsa KaiXiang Ni JinHua Ning XuYang Ning XiangXiang Ren ChangSong Shang Lin Si AnDi Tan AnQing Wang HongWei Wang Meng Wang SiGuang Wang XiuLi Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu Jumin Yuan Dan Zhang HongGuang Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，3： | 0 |
| 10 | Constraining self-interacting dark matter with the full dataset of PandaX-II显示文摘Self-interacting dark matter(SIDM)is a leading candidate proposed to solve discrepancies between predictions of the prevailing cold dark matter theory and observations of galaxies.Many SIDM models predict the existence of a light force carrier that mediates strong dark matter self-interactions.If the mediator couples to the standard model particles,it could produce characteristic signals in dark matter direct detection experiments.We report searches for signals of SIDM models with a light mediator using the full dataset of the PandaX-II experiment,basing on a total exposure of 132 tonne-days.No significant excess over background is found,and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling strength.We further combine the PandaX-II constraints and those from observations of the light element abundances in the early universe,and show that direct detection and cosmological probes can provide complementary constraints on dark matter models with a light mediator. | Jijun Yang Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Shengming He Di Huang Yan Huang Ran Huo Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Qing Lin Huaxuan Liu Jianglai Liu Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Nasir Shaheed Kaixiang Ni Jinhua Ning Xuyang Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang QiuHong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Yong Yang Chunxu Yu Hai-Bo Yu Jumin Yuan Ying Yuan Xinning Zeng Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，11： | 0 |
| 11 | A Search for Solar Axions and Anomalous Neutrino Magnetic Moment with the Complete Panda X-Ⅱ Data显示文摘We report a search for new physics signals using the low energy electron recoil events in the complete data set from PandaX-Ⅱ,in light of the recent event excess reported by XENON1 T.The data correspond to a total exposure of 100.7 ton·day with liquid xenon.With robust estimates of the dominant background spectra,we perform sensitive searches on solar axions and neutrinos with enhanced magnetic moment.It is found that the axionelectron coupling gAe<4.6×10^(-12) for an axion mass less than 0.1 keV/c^(2) and the neutrino magnetic moment μv<4.9×10^(-11)μB at 90%confidence level.The observed excess from XENON1 T is within our experimental constraints. | 周小朋 曾鑫宁 宁旭阳 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 程晨 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄焱 黄彦霖 黄周 季向东 巨永林 李帅杰 刘华萱 刘江来 芦晓盈 马文博 马余刚 冒亚军 孟月 倪恺翔 宁金华 任祥祥 商长松 申国防 司琳 谈安迪 王安庆 王宏伟 王萌 王秋红 王思广 王为 王秀丽 王舟 武蒙蒙 吴世勇 邬维浩 夏经铠 肖梦姣 谢鹏伟 燕斌斌 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 张丹 张涛 赵力 郑其斌 周济芳 周宁 | 2021 | Chinese Physics Letters2021，38，1： | 0 |
| 12 | Determination of responses of liquid xenon to low energy electron and nuclear recoils using a PandaX-Ⅱ detector显示文摘We present a systematic determination of the responses of PandaX-Ⅱ,a dual phase xenon time projection chamber detector,to low energy recoils.The electron recoil(ER) and nuclear recoil(NR) responses are calibrated,respectively,with injected tritiated methane or 220Rn source,and with 241Am-Be neutron source,in an energy range from 1-25 keV(ER) and 4-80 keV(NR),under the two drift fields,400 and 317 V/cm.An empirical model is used to fit the light yield and charge yield for both types of recoils.The best fit models can describe the calibration data significantly.The systematic uncertainties of the fitted models are obtained via statistical comparison to the data. | 燕斌斌 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 程晨 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄沛尧 黄焱 黄彦霖 黄周 季向东 巨永林 李帅杰 刘江来 雷卓群 马文博 马余刚 冒亚军 孟月 倪恺翔 宁金华 宁旭阳 任祥祥 商长松 司琳 申国防 谈安迪 王安庆 王宏伟 王萌 王秋红 王思广 王为 王秀丽 王舟 武蒙蒙 吴世勇 邬维浩 夏经铠 肖梦姣 谢鹏伟 严锐 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 樊英杰 曾鑫宁 张丹 张涛 赵力 郑其斌 周济芳 周宁 周小朋 | 2021 | Chinese Physics C2021，45，7： | 0 |
| 13 | Study of background from accidental coincidence signals in the PandaX-Ⅱexperiment显示文摘Ⅰ.INTRODUCTION The direct detection of dark matter particles,especially the weakly interacting massive particles(WIMPs),is being actively carried out by a couple of experiments worldwide[1].In recent years,the PandaX-Ⅱ experiment located in the China Jinping Underground Laboratory(CJPL)[1-3],which uses the technology of dual phase liquid xenon time projection chambers(TPCs),has pushed the limits of the cross section between WIMPs and nucleons to a new level for most of the possible WIMP masses;other experiments of the same type are also being performed[4–10]. | 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 程晨 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄焱 黄彦霖 黄周 季向东 巨永林 李帅杰 刘华萱 刘江来 马文博 马余刚 冒亚军 孟月 倪恺翔 宁金华 宁旭阳 任祥祥 商长松 司琳 申国防 谈安迪 王安庆 王宏伟 王萌 王秋红 王思广 王为 王秀丽 王舟 武蒙蒙 吴世勇 邬维浩 夏经铠 肖梦姣 谢鹏伟 燕斌斌 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 曾鑫宁 张丹 张涛 赵力 郑其斌 周济芳 周宁 周小朋 | 2022 | Chinese Physics C2022，46，10： | 0 |
| 14 | Determination of Double Beta Decay Half-Life of 136Xe with the PandaX-4T Natural Xenon Detector显示文摘Precise measurement of two-neutrino double beta decay(DBD)half-life is an important step for the searches of Majorana neutrinos with neutrinoless double beta decay.We report the measurement of DBD half-life of 136xe using the Pandax-4T dual-phase Time Projection Chamber(TPC)with 3.7-tonne natural xenon and the first 94.9-day physics data release. | Lin Si Zhaokan Cheng Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yujun Mao Yue Meng Nasir Shaheed Xiaofeng Shang Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Guofang Shen Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Zhe Yuan Dan Zhang Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou | 2023 | Research2023，，2： | 0 |
| 15 | Results of dark matter search using the full PandaX-Ⅱ exposure显示文摘We report the dark matter search results obtained using the full 132 ton·day exposure of the PandaX-II experiment,including all data from March 2016 to August 2018.No significant excess of events is identified above the expected background.Upper limits are set on the spin-independent dark matter-nucleon interactions.The lowest 90%confidence level exclusion on the spin-independent cross section is 2.2×10−46 cm2 at a WIMP mass of 30 GeV/c2. | 王秋红 阿布都沙拉木·阿布都克力木 陈葳 谌勋 陈云华 程晨 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩柯 何昶达 黄迪 黄焱 黄彦霖 黄周 季向东 巨永林 李帅杰 刘华萱 刘江来 马文博 马余刚 冒亚军 孟月 倪恺翔 宁金华 宁旭阳 任祥祥 商长松 司琳 申国防 谈安迪 王安庆 王宏伟 王萌 王思广 王为 王秀丽 王舟 武蒙蒙 吴世勇 邬维浩 夏经铠 肖梦姣 谢鹏伟 燕斌斌 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 曾鑫宁 张丹 张涛 赵力 郑其斌 周济芳 周宁 周小朋 | 2020 | Chinese Physics C2020，44，12： | 0 |
| 16 | Neutron-induced nuclear recoil background in the PandaX-4T experiment显示文摘Neutron-induced nuclear recoil background is critical to dark matter searches in the PandaX-4T liquid xenon experiment.In this study,we investigate the features of neutron background in liquid xenon and evaluate its contribution in single scattering nuclear recoil events using three methods.The first method is fully based on Monte Carlo simulations.The last two are data-driven methods that also use multiple scattering signals and high energy signals in the data.In the PandaX-4T commissioning data with an exposure of 0.63 tonne-year,all these methods give a consistent result,i.e.,there are 1.15±0.57 neutron-induced backgrounds in the dark matter signal region within an approximated nuclear recoil energy window between 5 and 100 keV. | 黄周 申国防 王秋红 阿布都沙拉木·阿布都克力木 薄子豪 陈葳 谌勋 陈云华 程晨 成云珊 崔祥仪 樊英杰 方德清 符长波 付孟婷 耿立升 Karl Giboni 顾琳慧 郭绪元 韩晨成 韩柯 何昶达 何金荣 黄迪 黄彦霖 侯汝全 季向东 巨永林 李晨翔 李名川 李舒 李帅杰 林箐 刘江来 芦晓盈 罗棱尹 马文博 马余刚 冒亚军 孟月 宁旭阳 祁宁春 钱志成 任祥祥 Nasir Shaheed 商长松 司琳 孙文良 谈安迪 陶奕 王安庆 王萌 王少博 王思广 王为 王秀丽 王舟 武蒙蒙 邬维浩 夏经铠 肖梦姣 肖翔 谢鹏伟 燕斌斌 颜玺雨 杨继军 杨勇 喻纯旭 袁鞠敏 袁影 张丹 张敏祯 张鹏 张涛 赵力 郑其斌 周济芳 周宁 周小朋 周永 | 2022 | Chinese Physics C2022，46，11： | 0 |
| 17 | Screener3D:a gaseous time projection chamber for ultra-low radioactive material screening显示文摘In experiments searching for rare signals,background events from the detector itself are some of the major factors limiting search sensitivity.Screening for ultra-low radioactive detector materials is becoming ever more essential.We propose to develop a gaseous time projection chamber(TPC)with a Micromegas readout for radio screening.The TPC records three-dimensional trajectories of charged particles emitted from a flat sample placed in the active volume of the detector.The detector can distinguish the origin of an event and identify the particle types with information from trajectories,which significantly increases the screening sensitivity.For a particles from the sample surface,we observe that our proposed detector can reach a sensitivity higher than 100 l Bq m-2 within two days. | Hai-Yan Du Cheng-Bo Du Karl Giboni Ke Han Sheng-Ming He Li-Qiang Liu Yue Meng Shao-Bo Wang Tao Zhang Li Zhao Ji-Fang Zhou | 2021 | Nuclear Science and Techniques2021，32，12： | 0 |
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