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Mineralogical and geochemical evidence for coupled bacterial uranium mineralization and hydrocarbon oxidation in the Shashagetai deposit,NW China

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Mineralogical and geochemical evidence for coupled bacterial...

2,2′-二取代-1,1′-联萘化合物的NMR研究

中国科学院地质与地球物理研究所2007学术年会

作者： Chunfang Cai~(a,*),Hailiang dong~b,Hongtao Li~a,Xinjian Xiao~c, Guanxi Ou~c,Chunming Zhang~d a Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,P.O.Box 9825, Beitucheng Xilu No.19,Chaoyang district,Beijing 100029,PR China b department of Geology,Miami University,Oxford,OH 45056,USA c Beijing Research Institute of Uranium Geology,Beijing 100029,PR China d Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University),Ministry of Education, Jingzhou,Hubei 434023,PR China

Unusual mineral structures have recently been found in a sandstone-hosted roll-type uranium deposit in the Middle Jurassic Zhiluo Formation in the Shashagetai deposit,the northern Ordos basin,NW *** structures possess a chemical composition and crystal structure characteristic of mineral coffinite[(USiO)(OH)],which occurs as nanoparticles with size ranging from 5 to 25 *** structures are interpreted to be fossilized microorganisms,based on mineralogical biosignatures including morphology,size,occurrence of biogenic coffinite as nano-crystals,and biological elements such as *** intimate intergrowth of coffinite with secondary pyrite of bacterial origin,as defined by lowδS values,and calcite cements with petroleum-derived carbon supports its biogenic *** inclusions in the host sandstone are characterized by abundant n-alkanes,slightly increased Pr/nC and Ph/nC ratios,significant amounts of demethylated hopanes and tricyclic terpanes,and the existence of unresolved complex *** characteristics are interpreted to be a result of mixing of an earlier,heavily degraded oil with a later charged fresh oil;subsequently the oils were slightly *** lines of evidence lead to the proposal that the reduction of sulfate and oxidization of petroleum are likely synchronous with reduction of hexavalent[U(Ⅵ)]to tetravalent[U(Ⅳ)]uranium by sulfate-reducing bacteria(SRB).The discovery of a natural association of microorganism-like structures,a uranium mineral,and biodegraded petroleum has implications for uranium biomineralization and fossil fuel exploration.

关键词： Uranium deposit Anaerobic petroleum oxidation Sulfate-reducing bacteria Nanoparticle Microfossil Sulfur isotopes

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分析测试学报 1998年第1期17卷 9-13页

作者：钟世舟祝亚非许遵乐张小蘅中山大学测试中心中山大学化学系西蒙弗雷舍大学化学/生物化学系

用二维核磁共振谱（ＣＯＳＹ、ＨＭＱＣ、ＨＭＢＣ、ＦＧ＿ＨＭＢＣ）进一步研究了２，２′－二羟基－１，１′－联萘（１）、２，２′－二甲氧基－１，１′－联萘（２）、２，２′－亚甲二氧基－１，１′－联萘（３）、２，２′－亚乙... 详细信息

用二维核磁共振谱（ＣＯＳＹ、ＨＭＱＣ、ＨＭＢＣ、ＦＧ＿ＨＭＢＣ）进一步研究了２，２′－二羟基－１，１′－联萘（１）、２，２′－二甲氧基－１，１′－联萘（２）、２，２′－亚甲二氧基－１，１′－联萘（３）、２，２′－亚乙二氧基－１，１′－联萘（４）、２－羟基－２′－甲氧基－１，１′－联萘（５）、２－羟基－２′－乙氧基－１，１′－联萘（６）、２－羟基－２′－异丙氧基－１，１′－联萘（７）、２－羟基－２′－丁氧基－１，１′－联萘（８）和２－羟基－２′－氧乙酸基－１，１′－联萘（９）等９个２，２′－二取代－１，１′－联萘化合物，确定了它们的氢谱和碳谱谱峰的归属，指出联萘化合物的立体结构、萘环的磁各向异性对质子谱有明显的影响，特别是Ｈ８（Ｈ８′）；而其对环碳的影响可以忽略。

关键词：二维核磁共振谱联萘衍生物 NMR

完全闭塞血管用激光导丝行血管成型术的临床试验

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岭南心血管病杂志 2001年第2期7卷 151-151页

作者： P.W.Serruys J.N.Hamburger J.J.Koolen J.Fajadet M.Haude H.Klues R.Seabra-Gomes T.Corcos C.Hamm L.Pizzuli B.Meier d.Mathey E.Flleck Y.Taeymans R.Melkert Y.Teunissen R.simon 陈爱华 department of interventional Cardiology.Heart Centre of the University Hospital Rotterdam

目的该随机试验用于评估激光导丝在治疗慢性冠状动脉闭塞方面的安全性和疗效.方法和结果 18个欧洲中心的303例患有慢性冠状动脉闭塞的病人,被随机分为激光导丝治疗组(n=144)或常规导丝治疗组(机械导丝,n=159).研究初级终点,即在X线曝光... 详细信息

目的该随机试验用于评估激光导丝在治疗慢性冠状动脉闭塞方面的安全性和疗效.方法和结果 18个欧洲中心的303例患有慢性冠状动脉闭塞的病人,被随机分为激光导丝治疗组(n=144)或常规导丝治疗组(机械导丝,n=159).研究初级终点,即在X线曝光时间30min内,通过指定的导丝到达闭塞远端的真腔为治疗成功.激光导丝与机械导丝的成功率比较:52.8%(n=76)vs 47.2%(n=75),P=0.33.继初始导丝试通后的严重不良事件分别为0(激光导丝)和0.6%(机械导丝).179例病人血管成型术(在导丝成功穿通后进行)成功(成功率91%,激光导丝n=79,机械导丝n=100).149例病人(79%)随后置入支架.6个月时的血管造影随访,两者的再狭窄率(激光导丝比机械导丝:45.5%vs38.3%,P=0.72)或再闭塞率(25.8%vs16.1%,P=0.15)方面的差异未达到统计学意义.在1个月、6个月和12个月随访时,心绞痛和无事件生存率为69%、35%和24%(激光导丝)比74%、40%和31%(机械导丝).

关键词：慢性完全冠状动脉闭塞随机试验激光血管成型术治疗

Sub-percent precision measurement of neutrino oscillation parameters with JUNO

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Chinese Physics C 2022年第12期46卷 28-49页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello Muhammad Akram Abid Aleem 安丰鹏安琪 Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André didier Auguste 白伟东 Nikita Balashov Wander Baldini Andrea Barresi davide Basilico Eric Baussan Marco Bellato Antonio Bergnoli Thilo Birkenfeld Sylvie Blin david Blum simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Jose Busto Ilya Butorov Anatael Cabrera Barbara Caccianiga 蔡浩蔡啸蔡严克蔡志岩 Riccardo Callegari Antonio Cammi Agustin Campeny 曹传亚曹国富曹俊 Rossella Caruso Cédric Cerna Chi Chan 常劲帆 Yun Chang 陈国明陈平平 Po-An Chen 陈少敏 Xurong Chen 陈义学陈羽陈志源陈梓康程捷程雅苹 Yu Chin Cheng Alexey Chetverikov davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti di Lorenzo daniele Corti Flavio dal Corso Olivia dalager Christophe de La Taille 邓智邓子艳 Wilfried depnering Marco diaz Xuefeng ding 丁雅韵 Bayu dirgantara Sergey dmitrievsky Tadeas dohnal dmitry dolzhikov Georgy donchenko 董建蒙 Evgeny doroshkevich Marcos dracos Frédéric druillole 杜然杜书先 Stefano dusini Martin dvorak Timo Enqvist Heike Enzmann Andrea Fabbri donghua Fan 樊磊方建方文兴 Marco Fargetta dmitry Fedoseev 费政勇 Li-Cheng Feng 冯启春 Richard Ford Amélie Fournier 甘浩男高峰 Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Nunzio Giudice Maxim Gonchar 龚光华宫辉 Yuri Gornushkin Alexandre Göttel Marco Grassi Vasily Gromov 顾旻皓谷肖飞古宇关梦云管宇铎 Nunzio Guardone 郭聪郭竞渊郭万磊 Xinheng Guo 郭宇航 Paul Hackspacher Caren Hagner 韩然 Yang Han 何苗 Wei He Tobias Heinz Patrick Hellmuth 衡月昆 Rafael Herrera 贺远强侯少静 Yee Hsiung Bei-Zhen Hu 胡航 Jianrun Hu 胡俊胡守扬胡涛胡宇翔胡焯钧黄桂鸿黄翰雄黄凯旋黄文昊 Xin Huang 黄性涛黄永波惠加琪霍雷霍文驹 Cédric Huss Safeer Hussain Ara Ioannisian Roberto Isocrate Beatrice Jelmini Ignacio Jeria 季筱璐贾慧慧贾俊基蹇司玉蒋荻蒋炜江晓山荆小平 Cécile Jollet Jari Joutsenvaara Leonidas Kalousis Philipp Kampmann 康丽 Rebin Karaparambil Narine Kazarian Amina Khatun Yerevan Physics Institute YerevanArmenia UniversiéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro Rio de JaneiroBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa Maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChinaand Key Laboratory of Particle Physics and Particle Irradiation of Ministry of EducationShandong UniversityQingdaoChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi'an Jiaotong University Xi'anChina Xiamen University XiamenChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhou

JUNO is a multi-purpose neutrino observatory under construction in the south of *** publication presents new sensitivity estimates for the measurement of the △m_(31)^(2),△m_(21)^(2),sin^(2)θ_(12),and sin^(2)θ_(13) oscillation parameters using reactor antineutrinos,which is one of the primary physics goals of the *** sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site,the nuclear reactors in the surrounding area and beyond,the detector response uncertainties,and the reactor antineutrino spectral shape constraints expected from the TAO satellite *** is found that the △m_(21)^(2) and sin^(2)θ_(12) oscillation parameters will be determined to 0.5%precision or better in six years of data *** the same period,the △m_(31)^(2) parameter will be determined to about 0.2%precision for each mass ordering *** new precision represents approximately an order of magnitude improvement over existing constraints for these three parameters.

关键词： neutrino oscillation reactor antineutrino precision measurement JUNO

Feasibility and physics potential of detecting ^(8)B solar neutrinos at JUNO

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Chinese Physics C 2021年第2期45卷 93-110页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Sebastiano Aiello Muhammad Akram Nawab Ali Fengpeng An Guangpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André didier Auguste Andrej Babic Wander Baldini Andrea Barresi Eric Baussan Marco Bellato Antonio Bergnoli Enrico Bernieri david Biare Thilo Birkenfeld Sylvie Blin david Blum simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Max Buesken Mario Buscemi Jose Busto Ilya Butorov Anatael Cabrera Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Jinfan Chang Yun Chang Pingping Chen Po-An Chen Shaomin Chen Shenjian Chen Xurong Chen Yi-Wen Chen Yixue Chen Yu Chen Zhang Chen Jie Cheng Yaping Cheng Alexander Chepurnov davide Chiesa Pietro Chimenti Artem Chukanov Anna Chuvashova Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti di Lorenzo daniele Corti Salvatore Costa Flavio dal Corso Christophe de La Taille Jiawei deng Zhi deng Ziyan deng Wilfried depnering Marco diaz Xuefeng ding Yayun ding Bayu dirgantara Sergey dmitrievsky Tadeas dohnal Georgy donchenko Jianmeng dong damien dornic Evgeny doroshkevich Marcos dracos Frédéric druillole Shuxian du Stefano dusini Martin dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Lukas Fajt donghua Fan Lei Fan Can Fang Jian Fang Marco Fargetta Anna Fatkina dmitry Fedoseev Vladko Fekete Li-Cheng Feng Qichun Feng Richard Ford Andrey Formozov Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Alexandre Göttel Christoph Genster Marco Giammarchi Agnese Giaz Nunzio Giudice Franco Giuliani Maxim Gonchar Guanghua Gong Hui Gong Oleg Gorchakov Yuri Gornushkin Marco Grassi Christian Grewing Maxim Gromov Vasily Gromov Minghao Gu Xiaofei Gu Yu Gu Mengyun Guan Nunzio Guardone Maria Gul Cong Guo Jingyuan Guo Wanlei Guo Xinheng Guo Yuhang Guo Paul Hackspacher Caren Hagner Ran Han Yan Yerevan Physics Institute YerevanArmenia UniversitéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro RioBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa Maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi’an Jiaotong University Xi’anChina Xiamen University XiamenChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhouChina Institute of Physics National Chiao-Tung University Hsinchu National United University Miao-Li department of Physics National T

The Jiangmen Underground Neutrino Observatory(JUNO)features a 20 kt multi-purpose underground liquid scintillator sphere as its main *** of JUNO's features make it an excellent location for^8B solar neutrino measurements,such as its low-energy threshold,high energy resolution compared with water Cherenkov detectors,and much larger target mass compared with previous liquid scintillator *** this paper,we present a comprehensive assessment of JUNO's potential for detecting^8B solar neutrinos via the neutrino-electron elastic scattering process.A reduced 2 MeV threshold for the recoil electron energy is found to be achievable,assuming that the intrinsic radioactive background^(238)U and^(232)Th in the liquid scintillator can be controlled to 10^(-17)g/*** ten years of data acquisition,approximately 60,000 signal and 30,000 background events are *** large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter,which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation *** m^(2)_(21)=4.8times10^(-5);(7.5times10^(-5))eV^(2),JUNO can provide evidence of neutrino oscillation in the Earth at approximately the 3sigma(2sigma)level by measuring the non-zero signal rate variation with respect to the solar zenith ***,JUNO can simultaneously measuredelta m^2_(21)using^8B solar neutrinos to a precision of 20% or better,depending on the central value,and to sub-percent precision using reactor antineutrinos.A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of delta m^2_(21)reported by solar neutrino experiments and the KamLANd experiment.

关键词： neutrino oscillation solar neutrino JUNO

JUNO sensitivity on proton decay p→νK^(+)searches

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Chinese Physics C 2023年第11期47卷 7-22页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello Muhammad Akram 安丰鹏安琪 Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André didier Auguste Nikita Balashov Wander Baldini Andrea Barresi davide Basilico Eric Baussan Marco Bellato Antonio Bergnoli Thilo Birkenfeld Sylvie Blin david Blum simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Mario Buscemi Jose Busto Ilya Butorov Anatael Cabrera Barbara Caccianiga 蔡浩蔡啸蔡严克蔡志岩 Riccardo Callegari Antonio Cammi Agustin Campeny 曹传亚曹国富曹俊 Rossella Caruso Cédric Cerna 常劲帆 Yun Chang 陈平平 Po-An Chen 陈少敏陈旭荣 Yi-Wen Chen 陈义学陈羽陈长程捷程雅苹 Alexey Chetverikov davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti di Lorenzo daniele Corti Flavio dal Corso Olivia dalager Christophe de La Taille 邓智邓子艳 Wilfried depnering Marco diaz Xuefeng ding 丁雅韵 Bayu dirgantara Sergey dmitrievsky Tadeas dohnal dmitry dolzhikov Georgy donchenko 董建蒙 Evgeny doroshkevich Marcos dracos Frédéric druillole 杜然杜书先 Stefano dusini Martin dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Ulrike Fahrendholz 范东华樊磊方建方文兴 Marco Fargetta dmitry Fedoseev Li-Cheng Feng 冯启春 Richard Ford Amélie Fournier 甘浩男 Feng Gao Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Agnese Giaz Nunzio Giudice Maxim Gonchar 龚光华宫辉 Yuri Gornushkin Alexandre Göttel Marco Grassi Christian Grewing Vasily Gromov 顾旻皓谷肖飞古宇关梦云 Nunzio Guardone Maria Gul 郭聪郭竞渊郭万磊郭新恒郭宇航 Paul Hackspacher Caren Hagner 韩然 Yang Han Muhammad Sohaib Hassan 何苗何伟 Tobias Heinz Patrick Hellmuth 衡月昆 Rafael Herrera 贺远强侯少静 Yee Hsiung Bei-Zhen Hu 胡航胡健润胡俊胡守扬胡涛胡宇翔胡焯钧黄春豪黄桂鸿黄翰雄黄文昊黄鑫黄性涛黄永波惠加琪霍雷霍文驹 Cédric Huss Safeer Hussain Ara Ioannisian Roberto Isocrate Beatrice Jelmini Kuo-Lun Jen Ignacio Jeria 季筱璐吉星曌贾慧慧贾俊基蹇司玉蒋荻蒋炜江晓山金如意荆小平 Cécile Jollet Jari Joutsenvaara Sirichok Jungthawan Leonidas Kalousis Philipp Ka Pontificia Universidad Católica de Chile SantiagoChile IPHC Universitéde StrasbourgCNRS/IN2P3F-67037 StrasbourgFrance Pakistan Institute of Nuclear Science and Technology IslamabadPakistan INFN Catania and dipartimento di Fisica e Astronomia dell Universitàdi Catania CataniaItaly East China University of Science and Technology ShanghaiChina University of Science and Technology of China HefeiChina Joint Institute for Nuclear Research DubnaRussia INFN Sezione di Milano and dipartimento di Fisica dell Universitàdi Milano MilanoItaly department of Physics Faculty of ScienceChulalongkorn UniversityBangkokThailand IJCLab UniversitéParis-SaclayCNRS/IN2P391405 OrsayFrance department of Physics and Earth Science University of Ferrara and INFN Sezione di FerraraFerraraItaly INFN Milano Bicocca and University of Milano Bicocca MilanoItaly INFN Sezione di Padova PadovaItaly III.Physikalisches Institut B RWTH Aachen UniversityAachenGermany Eberhard Karls Universität Tübingen Physikalisches InstitutTübingenGermany Institute of High Energy Physics BeijingChina SUBATECH Universitéde NantesIMT AtlantiqueCNRS-IN2P3NantesFrance Univ.Bordeaux CNRSLP2IUMR 5797F-33170 GradignanFrance department of Physics National Taiwan UniversityTaipei dipartimento di Fisica e Astronomia dell’Universitàdi Padova and INFN Sezione di Padova PadovaItaly University of Roma Tre and INFN Sezione Roma Tre RomaItaly Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Wuhan University WuhanChina INFN Milano Bicocca and Politecnico of Milano MilanoItaly National United University Miao-Li dongguan University of Technology DongguanChina Tsinghua University BeijingChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Institute of Physics National Yang Ming Chiao Tung UniversityHsinchu North China Electric Power University BeijingChina Sun Yat-Sen University GuangzhouChina Beijing Institute of Spacecraft Environment Engineering BeijingChina Universidade Estadual de Londrina LondrinaBrazil INFN Sez

The Jiangmen Underground Neutrino Observatory(JUNO)is a large liquid scintillator detector designed to explore many topics in fundamental *** this study,the potential of searching for proton decay in the p→νK^(+)mode with JUNO is *** kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for ***,the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed *** on these advantages,the detection efficiency for the proton decay via p→νK^(+)is 36.9%±4.9%with a background level of 0.2±0.05(syst)±0.2(stat)events after 10 years of data *** estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 years,which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies.

关键词： proton decay grand unified theories JUNO liquid scintillator detector