检索结果-南通市图书馆

PandaX: a liquid xenon dark matter experiment at CJPL

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2014年第8期57卷 1476-1494页

作者： 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 Shanghai Institute of Applied Physics The Institute of Nuclear and Particle Physics Astronomy and Cosmology (INPAC) and Department of Physics and AstronomyShanghai Jiao Tong University Yalong River Hydropower Development Company Ltd. School of Physics and Key Laboratory of Particle Physics and Particle Irradiation (MOE) Shandong University School of Physics Peking University Department of Physics University of Maryland College Park MD 20742 USA School of Mechanical Engineering Shanghai Jiao Tong University Department of Physics University of Michigan Ann Arbor MI 48109 USA

PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay *** 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 *** experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,*** detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional *** this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented.

关键词： dark matter liquid xenon detector underground experiment time projection chamber

Dynamics behavior of the isoscaling and isotopic effect studied by the Constrained Molecular Dynamics Model

在线全文

学校读者我要写书评

暂无评论

Dynamics behavior of the isoscaling and isotopic effect stud...

Detecting neutrinos from supernova bursts in PandaX-4T

2005年全国核反应会议

作者： Tian Wendong, Ma Yugang, Cai Xiangzhou, Chen Jingen, Chen Jinhui, fang deqing, Guo Wei, Ma Chunwang, Ma Guoliang, Shen Wenqing, Wang Kun, Wei Yibin, YanTingzhi, Zhong Chen, Zuo JiaxuShanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204,Shanghai 201800

The dynamical evolution of isoscaling was studied using theconstrained moleculardynamical model, the simulation was produced at incident energy 25MeV/A, and thecentral collision b=1, on 2 isotopic different reactions 40Ca+ 40Ca, 48Ca+ 48Ca. Isoscaling was observed at different reaction time, the isoscaling properties were analyzed along the time evolution, the analysis demonstrates that for the light fragments, such as Z<10, emitted particles from the composite nuclei system, the isoscaling parameters a and P are independent of the emission time. For the residue nuclei, its isoscaling parameter a increase with the increasing of atomic number Z, and varies a little with the time evolution. But parameter P(for intermediate mass and residue fragments) present complex and different behavior from parameter a.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第7期48卷 14-21页

作者：庞彬宇阿布都沙拉木·阿布都克力木薄子豪陈葳谌勋程晨成兆侃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黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李家富李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳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 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王舟魏月环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姚玉坤喻纯旭袁影苑哲鑫宁张丹张敏桢张鹏张世博张澍张涛张洋张瀛心张园园赵力郑其斌周济芳周宁周小朋周永周钰博 New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai200240China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237ShandongChina School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Nankai UniversityTian

Neutrinos from core-collapse supernovae are essential for understanding neutrino physics and stellar ***-phase xenon dark matter detectors can be used to track explosions of galactic supernovae by detecting neutrinos through coherent elastic neutrino-nucleus *** this study,a variation of progenitor masses and explosion models are assumed to predict neutrino fluxes and spectra,which result in the number of expected neutrino events ranging from 6.6 to 13.7 at a distance of 10 kpc over a 10-s duration with negligible backgrounds at *** specialized triggering alarms for monitoring supernova burst neutrinos are *** efficiency of detecting supernova explosions at various distances in the Milky Way is *** alarms will be implemented in the real-time supernova monitoring system at PandaX-4T in the near future,which will provide supernova early warnings for the astronomical community.

关键词： core-collapse supernovae neutrinos liquid xenon detectors supernova early warnings

在线全文

学校读者我要写书评

暂无评论

中能重离子碎裂反应的同位旋效应及其消失

高能物理与核物理 2000年第10期24卷 949-954页

作者：方德清沈文庆冯军蔡翔舟苏前敏马余刚中国科学院上海原子核研究所上海201800

用修正的统计擦去模型计算了中能重离子碎裂反应产生的同位素分布的同位旋效应 ,发现随着 (Zproj-Z) /Zproj的增大 ,碎裂反应的同位旋效应将逐渐减小直到消失 .同时 ,研究表明碎裂反应的同位旋效应的消失主要是由擦去阶段的几何效应和... 详细信息

用修正的统计擦去模型计算了中能重离子碎裂反应产生的同位素分布的同位旋效应 ,发现随着 (Zproj-Z) /Zproj的增大 ,碎裂反应的同位旋效应将逐渐减小直到消失 .同时 ,研究表明碎裂反应的同位旋效应的消失主要是由擦去阶段的几何效应和随后的蒸发效应导致的 .

关键词：同位旋效应碎裂反应中能重离子

Constraining self-interacting dark matter with the full dataset of PandaX-II

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2021年第11期64卷 2-7页

作者： 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 School of Physics and Astronomy Shanghai Jiao Tong UniversityMOE Key Laboratory for Particle Astrophysics and CosmologyShanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institude Chengdu 610213China Yalong River Hydropower Development Company Ltd.Chengdu 610051China School of Physics Sun Yat-sen UniversityGaungzhou 510275China Tsung-Dao Lee Institute Shanghai 200240China School of Physics Nankai UniversityTianjin 300071China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China School of Physics Beihang UniversityBeijing 100191China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China Shandong Institute of Advanced Technology Jinan 250103China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Physics University of MarylandCollege ParkMaryland 20742USA School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityJinan 250100China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Department of Physics and Astronomy University of CaliforniaRiversideCalifornia 92507USA Center of High Energy Physics Peking UniversityBeijing 100871China

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 *** SIDM models predict the existence of a light force carrier that mediates strong dark matter *** the mediator couples to the standard model particles,it could produce characteristic signals in dark matter direct detection *** 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 *** significant excess over background is found,and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling *** 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.

关键词： dark matter direct detection self-interacting dark matter

在线全文

学校读者我要写书评

暂无评论

塔里木盆地柯坪地区烃源岩评价

新疆石油学院学报 2001年第1期13卷 22-25页

作者：李椿王艳丽杜鸿烈方德庆大庆石油学院石油勘探系黑龙江安达151400

对柯坪地区的烃源岩进行的综合定性研究表明 ,烃源岩可分为寒武系、奥陶系、石炭系和二叠系四套主要源岩层系。其中二叠系烃源岩发育较好、有机质丰度也相对较高 ,但演化程度低 ,使其生油量受到了限制 ;石炭系发育厚度最大 ,但有机质丰... 详细信息

对柯坪地区的烃源岩进行的综合定性研究表明 ,烃源岩可分为寒武系、奥陶系、石炭系和二叠系四套主要源岩层系。其中二叠系烃源岩发育较好、有机质丰度也相对较高 ,但演化程度低 ,使其生油量受到了限制 ;石炭系发育厚度最大 ,但有机质丰度低、类型差 ,其生油能力最低 ;奥陶系源岩虽发育厚度较薄 ,但其中有机质丰度很高、有机质类型很好 ,又正处于生油高峰演化阶段 ,尤其是萨尔干组和印干组生油层是本区最优生油岩 ,因此奥陶系烃源岩是研究区内的最优生油层系 ;最下部的寒武系地层虽发育厚度较大、类型较好 ,但由于有机质丰度低、成熟度过高 ,导致其生油量低于奥陶系源岩。

关键词：塔里木盆地柯坪地区有机质烃源岩定性评价

Molecular orbital study on antiferromagnetic coupling mechanism in a silver(Ⅰ)complex

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2005年第18期50卷 1999-2004页

作者： ZHANG Guiqin HUANG Jiangen HUANG Yuanhe fang Decai ZHANG deqing Department of Chemistry Beijing Normal University Beijing 100875 China Department of Physics Qujing Normal College Qujing 655000 China Department of Chemistry Jinggangshan College Ji'an 343009 China Organic Solids Laboratory Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

The mechanism of antiferromagnetic coupling in an Ag (I) complex of nitronyl nitroxide is investigated by means of the broken-symmetry approach within the density functional method (DFT-BS). The magneto-structural corre-lation and the single-occupied molecular orbital (SOMO) analysis reveal the existence of the antiferromagnetic cou-pling pathway along nitronyl nitroxide units via Ag (I) ion, and that the Ag (I) ion plays an important bridge role. The spin population analysis also shows the existence of spin de-localization along the ONCNO-Ag-ONCNO chain. It is found that the non-typical covalent bonds with major ionic charac-ter between Ag (I) ions and oxygen atoms of nitronyl nitrox-ide units can be used to mediate the spin-spin interaction of nitronyl nitroxides.

关键词：分子轨道反铁磁性耦合装置银化合物密度函数

Waveform simulation in PandaX-4T

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第7期48卷 1-13页

作者：李家富阿卜杜萨拉姆薄子豪陈葳谌勋程晨成赵侃崔祥仪樊英杰方德清耿立升 Karl Giboni 郭绪元韩晨成韩柯何昶达何金荣黄迪黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳庞彬宇祁宁春钱志成任祥祥 Nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王旭王舟魏月环武蒙蒙邬维浩吴渊肖梦姣肖翔燕斌斌阎玺宇杨勇喻纯旭袁影苑哲运有辉曾鑫宁张敏桢张鹏张世博张澍张涛张威张洋张瀛心张园园赵力周济芳周宁周小朋周永周钰博周知震 School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Physics Peking UniversityBeijing 100871China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China Department of Physics University of MarylandCollege ParkMaryland 20742USA Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai200240China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China School of Physics Nankai UniversityTianjin 300071China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China SJTU Paris Elite Institute of Technology Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics Yantai UniversityYantai 264005Ch

Signal reconstruction through software processing is a crucial component of the background and signal models in the PandaX-4T experiment,which is a multi-tonne dark matter direct search *** accuracy of signal reconstruction is influenced by various detector artifacts,including noise,dark count of photomultiplier,photoionization of impurities in the detector,and other relevant *** this study,we presented a detailed description of a semi-data-driven approach designed to simulate a signal *** work provides a reliable model for the efficiency and bias of the signal reconstruction in the data analysis of *** comparing critical variables that relate to the temporal shape and hit pattern of the signals,we found good agreement between the simulation and data.

关键词： dark matter time projection chamber simulation

Some Results on Halo Research at RIBLL

在线全文

学校读者我要写书评

暂无评论

IMP & HIRFL Annual Report 2001年第1期 26-26页

作者： Guo Zhongyan, Xiao Guoqing, Zhan Wenlong, Shen Wenqing, Sun Zhiyu, Li Jiaxing, Wang Quanjin Wang Meng, Chen Zhiqiang, fang deqing, Cai Xiangzhou and Wang Wusheng Institute of Nuclear Physics, Shanghai.

Last years,several experiments about halo nuclei were performed at *** the analyzing and fitting the data by using Glauber theory with some assumptions,following some results were deduced.1.~8B shows a proton halo *** reaction cross section σR of 54 MeV/u^8B on Si was measured as 1634±49 *** density distribution of ~8B was studied through a fitting procedure on the enhancement of the σR at low energies including the high energy data by using Glauber *** result shows a long tail ...

关键词： proton nuclei assumptions deduced nucleus fitting isotopes possibly fitted expanding