First dark matter search results from the PandaX-Ⅰ experiment

查看全文 作　　者：XIAO [1]MengJiao;XIAO [1]Xiang;ZHAO [1]Li;CAO [2]XiGuang;CHEN [1]Xun;CHEN [3]YunHua;CUI [1]XiangYi;FANG [2]DeQing;FU [1]ChangBo;GIBONI Karl [1]L.;GONG [1]HaoWei;GUO [1]GuoDong;HU [1]Jie;HUANG [4]XingTao;JI [1,5,6]XiangDong;JU [7]YongLin;LEI [1]SiAo;LI [1]ShaoLi;LIN [1]Qing;LIU [7]HuaXuan;LIU [1]JiangLai;LIU [1]Xiang;LORENZON [8]Wolfgang;MA [2]YuGang;MAO [5]YaJun;NI [1]KaiXuan;PUSHKIN [1,8]Kirill;REN [4]XiangXiang;SCHUBNELL [8]Michael;SHEN [3]ManBing;STEPHENSON [8]Scott;TAN [6]AnDi;TARL [8]Greg;WANG [2]HongWei;WANG [3]JiMin;WANG [4]Meng;WANG [1]XuMing;WANG [7]Zhou;WEI [1]YueHuan;WU [3]ShiYong;XIE [1]PengWei;YOU [3]YingHui;ZENG [3]XiongHui;ZHANG [7]Hua;ZHANG [1]Tao;ZHU [3]ZhongHua

机构地区：[1]The Institute of Nuclear and Particle Physics,Astronomy and Cosmology (INPAC) and Department of Physics and Astronomy,Shanghai Jiao Tong University;[2]Shanghai Institute of Applied Physics,Chinese Academy of Sciences;[3]Yalong River Hydropower Development Company,Ltd.;[4]School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE),Shandong University;[5]School of Physics,Peking University;[6]Department of Physics,University of Maryland,College Park,MD,20742,USA;[7]School of Mechanical Engineering,Shanghai Jiao Tong University;[8]Department of Physics,University of Michigan,Ann Arbor,MI,48109,USA

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2014年第57卷第11期,共7页

基　　金：supported by the 985-Ⅲ grant from Shanghai Jiao Tong University;the National Basic Research Program of China from Ministry of Science and Technology of China (Grant No.2010CB833005);the National Natural Science Foundation of China (Grant No.11055003);the Office of Science and Technology in Shanghai Municipal Government (Grant No.11DZ2260700);support from China Postdoctoral Science Foundation (Grant No.2014M551395);sponsored by Shandong University;Peking University;the University of Maryland;the University of Michigan 摘　　要：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. 关键词：实验室工作搜索结果暗物质散射截面置信水平低质量 DM 氙气

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First dark matter search results from the PandaX-Ⅰ experiment

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