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Almond diversity and homozygosity define structure, kinship, inbreeding, and linkage disequilibrium in cultivated germplasm, and reveal genomic associations with nut and seed weight

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Horticulture Research 2021年第1期8卷 223-234页

作者： Stefano Pavan Chiara delvento Rosa Mazzeo Francesca Ricciardi Pasquale Losciale Liliana Gaeta nunzio d’Agostino Francesca Taranto Raquel Sanchez-Perez Luigi Ricciardi Concetta Lotti department of Soil Plant and Food ScienceUniversity of Bari Aldo MoroVia Amendola 165/ABari 70126Italy Institute of Biomedical Technologies National Research Council(CNR)Via Amendola 122/DBari 70126Italy department of the Sciences of Agriculture Food and EnvironmentUniversity of FoggiaVia Napoli 25Foggia 71100Italy Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment(CREA-AA) Bari 70125Italy department of Agricultural Sciences University of Naples Federico IIPortici 80055Italy Institute of Biosciences and Bioresources National Research Council of ItalyPortici 80055Italy CEBAS-CSIC.Campus Universitario de Espinardo 30100 EspinardoSpain

Almond[Prunus dulcis Miller(***)]is the main tree nut species ***,genotyping-by-sequencing(GBS)was applied to 149 almond cultivars from the ex situ collections of the Italian Council for Agricultural Research(CREA)and the Spanish National Research Council(CSIC),leading to the detection of 93,119 single-nucleotide polymorphisms(SNPs).The study of population structure outlined four distinct genetic groups and highlighted diversification between the Mediterranean and Californian gene *** on SNP diversity and runs of homozygosity(ROHs)allowed the definition of kinship,inbreeding,and linkage disequilibrium(Ld)decay in almond cultivated ***-year phenotypic observations,gathered on 98 cultivars of the CREA collection,were used to perform a genome-wide association study(GWAS)and,for the first time in a crop species,homozygosity mapping(HM),resulting in the identification of genomic associations with nut,shell,and seed *** GWAS and HM suggested that loci controlling nut and seed weight are mostly ***,this study provides insights on the almond cultivation history and delivers information of major interest for almond genetics and *** a broader perspective,our results encourage the use of ROHs in crop science to estimate inbreeding,choose parental combinations minimizing the risk of inbreeding depression,and identify genomic footprints of selection for specific traits.

关键词： linkage structure Italian

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Transcriptome reprogramming,epigenetic modifications and alternative splicing orchestrate the tomato root response to the beneficial fungus Trichoderma harzianum

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Horticulture Research 2019年第1期6卷 1792-1806页

作者： Monica de Palma Maria Salzano Clizia Villano Riccardo Aversano Matteo Lorito Michelina Ruocco Teresa docimo Anna Lisa Piccinelli nunzio d’Agostino Marina Tucci Institute of Biosciences and BioResources Research Division PorticiNational Research Council80055 PorticiItaly department of Agricultural Sciences University of Naples Federico II80055 PorticiItaly Institute for Sustainable Plant Protection National Research Council80055 PorticiItaly department of Pharmacy University of Salerno84084 FiscianoItaly CREA Research Centre for Vegetable and Ornamental Crops84098 Pontecagnano FaianoItaly

Beneficial interactions of rhizosphere microorganisms are widely exploited for plant biofertilization and mitigation of biotic and abiotic *** provide new insights into the onset of the roots–beneficial microorganisms interplay,we characterised the transcriptomes expressed in tomato roots at 24,48 and 72 h post inoculation with the beneficial fungus Trichoderma harzianum T22 and analysed the epigenetic and post-trascriptional regulation *** detected 1243 tomato transcripts that were differentially expressed between Trichoderma-interacting and control roots and 83 *** transcripts that were differentially expressed between the three experimental time *** with Trichoderma triggered a transcriptional response mainly ascribable to signal recognition and transduction,stress response,transcriptional regulation and *** tomato roots,salicylic acid,and not jasmonate,appears to have a prominent role in orchestrating the interplay with this beneficial *** regulation of many nutrient transporter genes indicated a strong effect on plant nutrition processes,which,together with the possible modifications in root architecture triggered by ethylene/indole-3-acetic acid signalling at 72 h post inoculation may concur to the well-described growth-promotion ability of this ***,***-induced defence priming and stress tolerance may be mediated by the induction of reactive oxygen species,detoxification and defence genes.A deeper insight into gene expression and regulation control provided first evidences for the involvement of cytosine methylation and alternative splicing mechanisms in the plant–Trichoderma interaction.A model is proposed that integrates the plant transcriptomic responses in the roots,where interaction between the plant and beneficial rhizosphere microorganisms occurs.

关键词： roots programming promotion

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Nb微合金化对环焊焊接接头热影响区显微组织的影响

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焊管 2018年第8期41卷 65-68页

作者：孙宏(编译) 郑青昊(编译) 宗秋丽(编译) SCHINO A d PAOLO E nunzio d 渤海装备华油钢管有限公司河北青县062658 不详

为了研究Nb的微合金化(w(Nb)=0.07%~0.10%)对大直径X80管线钢管环焊缝焊接接头热影响区(HAZ)显微组织及性能的影响,通过EBSd、显微硬度和夏比冲击试验分析了两种X80管线钢管环焊缝HAZ显微组织变化、显微硬度分布及韧脆转变特性。通过对... 详细信息

为了研究Nb的微合金化(w(Nb)=0.07%~0.10%)对大直径X80管线钢管环焊缝焊接接头热影响区(HAZ)显微组织及性能的影响,通过EBSd、显微硬度和夏比冲击试验分析了两种X80管线钢管环焊缝HAZ显微组织变化、显微硬度分布及韧脆转变特性。通过对比发现,Nb含量严重影响HAZ的贝氏体板条束和贝氏晶粒尺寸,具有较高Nb含量(w(Nb)=0.10%)的组织晶粒尺寸更加细小。研究结果表明,高的Nb含量显著改善了管线钢焊接接头HAZ的冲击韧性和硬度性能。

关键词：环焊缝热影响区冶金显微组织力学性能沉淀相

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Nano albumin bound-paclitaxel in pancreatic cancer: Current evidences and future directions

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World Journal of Gastroenterology 2017年第32期23卷 5875-5886页

作者： Guido Giordano Massimo Pancione nunzio Olivieri Pietro Parcesepe Marianna Velocci Tania di Raimo Luigi Coppola Giuseppe Toffoli Mario Rosario d’Andrea Medical Oncology Unit San Filippo Neri Hospital CRO Aviano National Cancer Institute department of Sciences and Technologies University of Sannio department of Biochemistry and Molecular Biology II Faculty of PharmacyComplutense University department of Biology University of Naples department of Pathology and diagnostics University of Verona Strada Anatomic Pathology Unit San Filippo Neri00135 RomaItaly Experimental and Clinical Pharmacology Unit CRO-National Cancer Institute Via F

Pancreatic cancer(PdAC) is an aggressive and chemoresistant disease, representing the fourth cause of cancer related deaths in western countries. Majority of patients have unresectable, locally advanced or metastatic disease at time of diagnosis and the 5-year survival rate in these conditions is extremely low. For more than a decade gemcitabine has been the cornerstone of metastatic PdAC treatment, although survival benefit was very poor. PdAC cells are surrounded by an intense desmoplastic reaction that may create a barrier to the drugs penetration within the tumor. Recently PdAC stroma has been addressed as a potential therapeutic target. Nano albumin bound(Nab)-paclitaxel is an innovative molecule depleting tumor stroma, through interaction between albumin and secreted protein acidic and rich in cysteine. Addition of nab-paclitaxel to gemcitabine has showed activity and efficacy in metastatic PdAC first-line treatment improving survival and overall response rate vs gemcitabine alone in the MPACT phase Ⅲ study. This combination represents one of the standards of care in advanced PdAC therapy and is suitable to a broader spectrum of patients compared to other schedules. Nab-paclitaxel is under investigation as a backbone of chemotherapy in novel combinations with target agents or immunotherapy in locally advanced or metastatic PdAC. In this article, we provide an updated and critical overview about the role of nab-paclitaxel in PdAC treatment based on the latest advances in preclinical and clinical research. Furthermore, we focus on the use of nab-paclitaxel within the context of metastatic PdAC treatment landscape and we discuss about future implications in the light of current clinical ongoing trials.

关键词： Nano albumin bound-paclitaxel Pancreatic cancer Metastatic disease Gemcitabine Folfirinox

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Biochemical sensing exploiting plasmonic sensors based on gold nanogratings and polymer optical fibers

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Photonics Research 2021年第7期9卷 1397-1408页

作者： FRANCESCO ARCAdIO LUIGI ZENI dOMENICO MONTEMURRO CATERINA ERAMO STEFANIA dI RONZA CHIARA PERRI GIROLAMO d’AGOSTINO GUIdO CHIARETTI GIOVANNI PORTO nunzio CENNAMO department of Engineering University of Campania Luigi VanvitelliAversa 81031Italy department of Physics E.Pancini University of Naples Federico IINaples 80126Italy Moresense Srl Filarete FoundationMilan 20139Italy

In this work,we present a novel biochemical sensing approach based on a plasmonic sensor chip,combined with a specific receptor,excited and interrogated via a custom 3d-printed holder through a transmission-based experimental setup,exploiting polymer optical fibers. The setup is designed to measure a disposable plasmonic chip based on a gold nanograting fabricated on a polymethylmethacrylate substrate. The examined sensor configurations here presented are simulated,realized,and experimentally tested. More specifically,first,a numerical analysis is carried out by changing several sensor parameters,then an experimental optical characterization of different sensor configurations is reported. Finally,to test the biosensing capabilities of the proposed method,as a proof of concept,we deposit on the best sensor configuration a biomimetic receptor specific for bovine serum albumin detection. The experimental results demonstrate that the proposed sensor shows an ultra-low limit of detection,equal to about 37 pmol/L.

关键词： exploit optical polymer

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HIV-induced membraneless organelles orchestrate post-nuclear entry steps

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Journal of Molecular Cell Biology 2022年第11期14卷 9-23页

作者： Viviana Scoca Renaud Morin Maxence Collard Jean-Yves Tinevez Francesca di nunzio Advanced Molecular Virology Unit Department of VirologyInstitut PasteurUniversitéParis Cité75015 ParisFrance Imactiv-3d 1 Place Pierre Potier31106 ToulouseFrance Image Analysis Hub/C2RT Institut PasteurUniversitéParis Cité75015 ParisFrance

HIV integration occurs in chromatin sites that favor the release of high levels of viral progeny;alternatively, the virus is alsoable to discreetly coexist with the host. The viral infection perturbs the cellular environment inducing the remodelling of thenuclear landscape. Indeed, HIV-1 triggers the nuclear clustering of the host factor CPSF6, but the underlying mechanism ispoorly understood. Our data indicate that HIV usurps a recently discovered biological phenomenon, called liquid–liquid phaseseparation, to hĳack the host cell. We observed CPSF6 clusters as part of HIV-induced membraneless organelles (HIV-1 MLOs) inmacrophages, one of the main HIV target cell types. We describe that HIV-1 MLOs follow phase-separation rules and representfunctional biomolecular condensates. We highlight HIV-1 MLOs as hubs of nuclear reverse transcription, while the double-strandedviral dNA, once formed, rapidly migrates outside these structures. Transcription-competent proviruses localize outside but nearHIV-1 MLOs in LEdGF-abundant regions, known to be active chromatin sites. Therefore, HIV-1 MLOs orchestrate viral events priorto the integration step and create a favorable environment for the viral replication. This study uncovers single functional host–viralcomplexes in their nuclear landscape, which is markedly restructured by HIV-1.

关键词： HIV nuclear condensates nuclear remodelling phase separation reverse transcription

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dynamical evolution of Ge quantum dots on Si(111):From island formation to high temperature decay

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Aggregate 2022年第4期3卷 114-120页

作者： Navathej Preetha Genesh Fabrizio de Marchi Stefan Heun Stefano Fontana Rachid Belkhou Rahul Purandare nunzio Motta Anna Sgarlata Massimo Fanfoni Jennifer MacLeod Oliver MacLean Federico Rosei CentreÉnergie Matériaux et TélécommunicationsInstitut National de la Recherche ScientifiqueQuébecCanada NEST Istituto Nanoscienze-CNR and Scuola Normale SuperiorePisaItaly Sincrotrone Trieste SCpA BasovizzaItaly LURE UniversitéParis-SudOrsay CedexFrance School of Chemistry and Physics and Centre for Materials Science Queensland University of TechnologyBrisbaneAustralia dipartimento di Fisica Universitàdi Roma“Tor Vergata”RomeItaly Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal UniversityChangchunP.R.China

Heteroepitaxial growth is a process of profound fundamental importance as well as an avenue to realize nanostructures such as Ge/Si quantum dots(Qds),with appealing properties for applications in opto-and ***,controlling the Ge/Si Qd size,shape,and composition remains a major obstacle to their practical ***,Ge nanostructures on Si(111)were investigated in situ and in real-time by low energy electron microscopy(LEEM),enabling the observation of the transition from wetting layer formation to 3d island growth and *** island size,shape,and distribution depend strongly on the growth *** the deposition temperature increases,the islands become larger and sparser,consistent with Brownian nucleation and capture *** 550◦C,two distinct Ge/Si nanostructures are formed with bright and dark appearances that correspond to flat,atoll-like and tall,faceted islands,*** annealing,the faceted islands increase in size at the expense of the flat ones,indicating that the faceted islands are thermodynamically more *** contrast,triangular islands with uniform morphology are obtained from deposition at 600◦C,suggesting that the growth more closely follows the ideal *** annealing,the islands formed at 600◦C initially show no change in morphology and size and then rupture simultaneously,signaling a homogeneous chemical potential of the *** observations reveal the role of dynamics and energetics in the evolution of Ge/Si Qds,which can serve as a step towards the precise control over the Ge nanostructure size,shape,composition,and distribution on Si(111).

关键词： epitaxial growth GeSi heterostructures low energy electron microscopy

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Effect of Q＆P Process on 0.15C-MnSi Steels

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材料科学与工程（中英文A版） 2016年第2期6卷 113-116页

作者： Andrea di Schino Paolo Emilio di nunzio Sabrina Mengaroni Pablo Rodriguez-Calvillo Jose Maria Cabrera dipartimento di Ingegneria Universith degli Studi di Perugia Via G. Duranti 93 Perugia 06125 Italy Centro Sviluppo Materiali SpA Via di Castel Romano 100Roma 00128 Italy Arcelor Mittal Global R&d Gent Belgium departamento de Ciencia de los Materiales e Ingenieria Metal{trgica Universitat Politecnica de Catalunya Barcelona Spain

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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 Fengpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André didier Auguste Weidong Bai 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 Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Riccardo Callegari Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Chi Chan Jinfan Chang Yun Chang Guoming Chen Pingping Chen Po-An Chen Shaomin Chen Xurong Chen Yixue Chen Yu Chen Zhiyuan Chen Zikang Chen Jie Cheng Yaping Cheng 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 Zhi deng Ziyan deng Wilfried depnering Marco diaz Xuefeng ding Yayun ding Bayu dirgantara Sergey dmitrievsky Tadeas dohnal dmitry dolzhikov Georgy donchenko Jianmeng dong Evgeny doroshkevich Marcos dracos Frédéric druillole Ran du Shuxian du Stefano dusini Martin dvorak Timo Enqvist Heike Enzmann Andrea Fabbri donghua Fan Lei Fan Jian Fang Wenxing Fang Marco Fargetta dmitry Fedoseev Zhengyong Fei Li-Cheng Feng Qichun Feng Richard Ford Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi nunzio Giudice Maxim Gonchar Guanghua Gong Hui Gong Yuri Gornushkin Alexandre Göttel Marco Grassi Vasily Gromov Minghao Gu Xiaofei Gu Yu Gu Mengyun Guan Yuduo Guan nunzio Guardone Cong Guo Jingyuan Guo Wanlei Guo Xinheng Guo Yuhang Guo Paul Hackspacher Caren Hagner Ran Han Yang Han Miao He Wei He Tobias Heinz Patrick Hellmuth Yuekun Heng Rafael Herrera YuenKeung Ho 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

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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

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