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Amplitude analysis of the decays d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)

Chinese Physics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis X.C.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani d.Bettoni F.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin J.F.Chang W.l.Chang G.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.s.Chen M.l.Chen s.J.Chen s.l.Chen s.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Y.Q.Chen Z.J.Chen Z.Y.Chen s.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.l.dai J.P.dai A.dbeyssi R.E.de Boer d.dedovich C.Q.deng Z.Y.deng A.denig I.denysenko M.destefanis F.de Mori B.Fang s.s.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng Y.T.Feng K.Fischer M.Fritsch C.d.Fu J.l.Fu Y.W.Fu H.Gao Y.N.Gao Yang Gao s.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck B.ding X.X.ding Y.ding Y.ding J.dong l.Y.dong M.Y.dong X.dong M.C.du s.X.du Z.H.duan P.Egorov Y.H.Fan J.Fang JA.Gilman K.Goetzen l.Gong W.X.Gong W.Gradl s.Gramigna M.Greco M.H.Gu Y.T.Gu C.Y.Guan Z.l.Guan A.Q.Guo l.B.Guo M.J.Guo R.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.l.Han T.T.Han X.Q.Hao F.A.Harris K.K.He K.l.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold T.Holtmann P.C.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.l.Hou B.Y.Hu H.M.Hu J.F.Hu T.Hu Y.Hu G.s.Huang K.X.Huang l.Q.Huang X.T.Huang Y.P.Huang T.Hussain F.H\"olzken N.H\"usken N.in der Wiesche M.Irshad J.Jackson s.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.B.Ji X.l.Ji Y.Y.Ji X.Q.Jia Z.K.Jia d.Jiang H.B.Jiang P.C.Jiang s.s.Jiang T.J.Jiang X.s.Jiang Y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson s.Kabana N.Kalantar-Nayestanaki X.l.Kang X.s.Kang M.Kavatsyuk B.C.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner X.Kui A.Kupsc W.K\"uhn J.J.lane P.larin l.lavezzi T.T.lei Z.H.lei H.leithoff M.lellmann T.lenz C.li C.li C.H.li Cheng li d.M.li F.li G.li H.li H.B.li H.J.li H.N.li Hui li J.R.li J.s.li K.li l.J.li l.K.li lei li M.H.li P.R.li Q.M.li Q.X.li R.li s.X.li T.li W.d.li W.G.li X.li X.H.li X.l.li X.Y.li Y Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear Physics sB RAs(BINP) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central south University Changsha 410083China China Center of Advanced science and Technology Beijing 100190China China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GsI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BEsIII detector,a joint amplitude analysis is performed on the decays d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decays d^(0)→a_(1)(1260)π,d^(0)→π(1300)π,d^(0)→ρ(770)ρ(770),and d^(0)→2(ππ)_(s)are observed in both *** the obtained amplitude model,the CP-even fractions of d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of d^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the B^(−)→dK^(−)decay.

关键词： BEsIII d^(0)meson decays amplitude analysis CP-even fraction

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Acute Pilates and plyometric exercise in school-based settings improve attention and mathematics performance in high school students

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sports Medicine and Health science 2024年第2期6卷 185-192页

作者： Muhammed M.Atakan Betül Atakan division of Exercise Nutrition and Metabolism Faculty of Sport SciencesHacettepe UniversityAnkara 06800Turkey Aydınlıkevler Anatolian High school Ministry of National EducationAnkara 06135Turkey

The aim of this study was to examine the effects of acute Pilates and plyometric exercise in a school-based setting on attention and mathematics test performance in high school *** 10th-grade students(21 females and 19 males;age:[15.00.5]years,body mass index:[21.42.8]kg/m2)participated in this crossover and quasiexperimental *** week 1,students were familiarized with the d2 test of attention and Pilates and plyometric exercises activities,and body composition measurements were *** both weeks 2 and 3,students completed the d2 test of attention and mathematics test with 20 questions following a single session of low-to-moderateintensity exercise and a classroom-based non-exercise activity,in a non-randomized *** exercise sessions included 30 mins of plyometric exercises for male students and Pilates exercise for female students,with intensities corresponding to 10–14 on the Borg rating of perceived exertion *** to the nonexercise activity,a 30-min of Pilates and plyometric exercise resulted in significant improvements in attention score(mean difference[Δ]=54.5 score;ps effect sizes[d]=1.26)and concentration performance(Δ=20.7 score;p=0.003;d=0.51).The students scored significantly higher on the mathematics test after participating in the exercise sessions compared to the non-exercise condition(Δ%=11.7;pd=0.76).There were no significant differences between genders(p>0.05).These findings demonstrate the effectiveness of acute light-to-moderate-intensity Pilates and plyometric exercises in school-based settings for improving attention and mathematics performance in adolescents.

关键词： Attention Mathematics Pilates-based exercises Plyometric exercises Adolescents

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Metabolic collaboration between cells in the tumor microenvironment has a negligible effect on tumor growth

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The Innovation 2024年第2期5卷 107-114页

作者： Johan Gustafsson Fariba Roshanzamir Anders Hagnestål sagar M.Patel Oseeyi I.daudu donald F.Becker Jonathan l.Robinson Jens Nielsen department of life sciences Chalmers University of TechnologySE-41296 GothenburgSweden Hagnesia AB SE-43854 HindåsSweden department of Biochemistry and Redox Biology Center University of Nebraska-LincolnLincolnNE 68588USA BioInnovation Institute DK2200 CopenhagenDenmark

The tumor microenvironment is composed of a complex mixture of different cell types interacting under conditions of nutrient deprivation,but the metabolism therein is not fully understood due to difficulties in measuring metabolic fluxes and exchange of metabolites between different cell types in ***-scale metabolic modeling enables estimation of such exchange fluxes as well as an opportunity to gain insight into the metabolic behavior of individual cell ***,we estimated the availability of nutrients and oxygen within the tumor microenvironment using concentration measurements from blood together with a metabolite diffusion *** addition,we developed an approach to efficiently apply enzyme usage constraints in a comprehensive metabolic model of human *** combined modeling reproduced severe hypoxic conditions and the Warburg effect,and we found that limitations in enzymatic capacity contribute to cancer cells’preferential use of glutamine as a substrate to the citric acid ***,we investigated the common hypothesis that some stromal cells are exploited by cancer cells to produce metabolites useful for the cancer *** identified over 200 potential metabolites that could support collaboration between cancer cells and cancer-associated fibroblasts,but when limiting to metabolites previously identified to participate in such collaboration,no growth advantage was *** work highlights the importance of enzymatic capacity limitations for cell behaviors and exemplifies the utility of enzyme-constrained models for accurate prediction of metabolism in cells and tumor microenvironments.

关键词： metabolism effect limitations

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Anaerobic soil disinfestation:A chemical-independent approach to pre-plant control of plant pathogens

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Journal of Integrative Agriculture 2015年第11期14卷 2309-2318页

作者： s l strauss d A Kluepfel UsdA-ARs Crops Pathology and Genetics Research Unit University of California

due to increasing regulations and restrictions, there is an urgent need to develop effective alternatives to chemical-dependent fumigation control of soilborne pests and pathogens. Anaerobic soil disinfestation （Asd） is one such alternative showing great promise for use in the control of soilborne pathogens and pests. This method involves the application of a carbon source, irrigation to field capacity, and covering the soil with a plastic tarp. While the mechanisms of Asd are not completely understood, they appear to be a combination of changes in the soil microbial community composition, production of volatile organic compounds, and the generation of lethal anaerobic conditions. The variety of materials and options for Asd application, including carbon sources, soil temperature, and plastic tarp type, influence the efficacy of pathogen sup- pression and disease control. Currently, both dry （e.g., rice bran） and liquid （e.g., ethanol） carbon sources are commonly used, but with different results depending on environmental conditions. While solarization is not an essential component of Asd, it can enhance efficacy. Understanding the mechanisms that mediate biological changes occurring in the soil during Asd will facilitate our ability to increase Asd efficacy while enhancing its commercial viability.

关键词： anaerobic soil disinfestation biological soil disinfestation soilborne pathogens fumigation

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应用自动化评估软件提高放射技师的乳腺断层摄影筛查能力

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国际医学放射学杂志 2024年第5期 622-623页

作者： G.Gennaro l.Povolo s.d.Genio l.Ciampani C.Fasoli P.Carlevaris 华蓓

目的应用自动化软件评估乳腺断层摄影筛查中摆位和压迫的正确性，提高乳腺放射技师的工作能力。方法采用前瞻性队列的回顾性纵向分析，要求6位具有不同经验

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由超拍电子伏特加速器产生的超高能伽马射线气泡

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science Bulletin 2024年第4期69卷 449-457页

作者： lHAAsO Collaboration Zhen Cao Chuandong Gao Cong li Ruo-Yu liu Ruizhi Yang 不详 Key laboratory of Particle Astrophyics&Experimental Physics division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China school of Astronomy and space science Nanjing UniversityNanjing 210023China University of science and Technology of China Hefei 230026China

We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UHE)up to a few PeV in the direction of the star-forming region Cygnus X,implying the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray energy spectrum of the bubble *** sources,“hot spots”correlated with very massive molecular clouds,and a quasi-spherical amorphousγ-ray emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially associating with a region containing massive OB association(Cygnus OB2)and a microquasar(Cygnus X-3),as well as previously reported multi-TeV sources,an enhanced concentration of UHEγ-rays is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology,and the energy spectrum,are reasonably reproduced by the assumption of a particle accelerator in the core,continuously injecting protons into the ambient medium.

关键词： Cosmic rays γ-rays Interstellar medium star cluster

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Model dependent analysis of d^(+)_(s)→η^(′)l+v_(l) decays in beyond standard model

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Chinese Physics C 2024年第9期48卷 82-95页

作者： s.Mahata M.Mandal H.Mahapatra s.Biswas s.sahoo department of Physics National Institute of Technology Durgapur Durgapur 713209West BengalIndia

Motivated by the recent experimental results of branching fractions for d^(+)_(s)→η^(′)l+v_(l) decays,which deviate from their sM predictions,we hve investigated these decays in W' model and scalar leptoquark model to determine potential signatures of new physics(NP) in semileptonic charm decays induced by c→(s.d.l.v_(l) *** recent experimental results of branching fractions for semileptonic d meson decays,new coupling parameters are predicted for the aforementioned NP *** fraction,forward-backward asymmetry,and lepton polarization asymmetry are examined by considering the predicted NP coupling *** results of branching fractions in scalar leptoquark model are found very close to the experimental results and exist around the range of 1σ *** presented a comparative study of the NP models to check their sensitivity on these *** anticipate that further research on these decays will significantly support our findings.

关键词： charm decay new physics W′boson scalar leptoquark flavour changing charged current

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自主机器人使能技术在制造业中的应用（英文）

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期 403-431页

作者： ERd?s Gábor ABAI Kristóf BEREGI Richárd CsEMPEsZ János CsERTEG Tamás GOdó Gábor HAJós Mátyás HáY Borbála HORVáTH dániel HORVáTH Gergely JUNIKI ádám KEMéNY Zsolt KOVáCs András NACsA János PANITI Imre PEdONE Gianfranco TAKáCs Emma TIPARY Bence ZAHORáN lászló VáNCZA József 匈牙利研究网络计算机科学与控制研究所布达佩斯经济与技术大学制造科学与技术系 EPIC非盈利创新实验室厄特沃什·罗兰大学

自主制造系统的研究既受益于信息物理融合系统这一新技术的推动，也响应工业实际需求的号召。目前，先进的传感器技术、数字孪生、人工智能和新型通信技术可以支持半结构化工业环境中的自主操作，可实现对生产过程的实时监控、情况识别... 详细信息

自主制造系统的研究既受益于信息物理融合系统这一新技术的推动，也响应工业实际需求的号召。目前，先进的传感器技术、数字孪生、人工智能和新型通信技术可以支持半结构化工业环境中的自主操作，可实现对生产过程的实时监控、情况识别和预测、自动和自适应（重新）规划、团队合作，以及通过学习提高性能。本文总结了实现自主工业机器人技术的主要需求，提出了实现此类系统的通用工作流程，并介绍了HUN-REN sZTAKI最近在装配、焊接、打磨、拾取和放置以及机械加工等多个应用领域的广泛实践。这些解决方案的共同点是以通用的数字孪生概念为核心。最后，本文提出实现工业自主机器人解决方案的一般建议，并讨论了未来要研究的一些开放性问题。

关键词：工业机器人自动化数字孪生使能技术

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scientific guidelines for preclinical research on potentised preparations manufactured according to current pharmacopoeias-the PrePoP guidelines

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Journal of Integrative Medicine 2024年第5期22卷 533-544页

作者： Alexander l.Tournier leoni V.Bonamin susann Buchheim-schmidt steven Cartwright Christoph dombrowsky Paul doesburg Carla Holandino Maria Olga Kokornaczyk Everine Bvan de Kraats Jesús Antonio lópez-Carvallo Papiya Nandy JoséManuel Mazón-suástegui Fateme Mirzajani Bernard Poitevin Claudia scherr Karin Thieves sandra Würtenberger stephan Baumgartner Institute of Complementary and Integrative Medicine University of Bern3010 BernBernSwitzerland Institute of Integrative Medicine Witten/Herdecke University58455 WittenNorth Rhine–WestphaliaGermany Homeopathy Research Institute London SW74EFUnited Kingdom Graduate Program on Environmental and Experimental Pathology Paulista UniversitySão Paulo 01504-000São PauloBrazil department of Medical science Deutsche Homöopathie-Union DHU-Arzneimittel GmbH&Co.KG76227 KarlsruheBaden-WürttembergGermany Cherwell laboratory for Fundamental Research in Homeopathy Oxford OX28NUOxforeshireUnited Kingdom society for Cancer Research Hiscia Research Institute4144 ArlesheimBaselSwitzerland laboratório Multidisciplinar de Ciências Farmacêuticas Universidade Federal do Rio de JaneiroRio de Janeiro 21941-902Rio de JaneiroBrazil World Water Community Rotterdam 3029AKthe Netherlands departamento de Acuicultura Facultad de Ciencias del MarUniversidad Católica del Norte1790437 CoquimboElquiChile Centre for Interdisciplinary Research and Education KolkataWest Bengal 700068West BengalIndia laboratorio de Homeopatía Acuícola y semillas Marinas Centro de Investigaciones Biológicas del NoroesteLa Paz 23096Baja California SurMexico Protein Research Center Shahid Beheshti UniversityTehran ***Iran department of Medical laboratory science College of ScienceKnowledge University44001 ErbilErbilIraq sociétésavante d’Homéopathie 75009 ParisFrance sola salus Institute for Homeopathic Research52511 GeilenkirchenNorth Rhine–WestphaliaGermany scientific society for Homeopathy 06366 KöthenSaxony-AnhaltGermany

Objective Pharmacopoeias regulate the manufacture of potentised pharmaceutical preparations used in different branches of complementary and integrative *** physicochemical properties and biological activity of these preparations are often investigated in preclinical research,yet no guidelines for experimental research currently exist in this *** present PrePoP guidelines aim to provide recommendations to promote high-quality,statistically sound,and reproducible preclinical research on potentised *** Input was gathered from researchers nominated by the relevant scientific societies using a simplified delphi consensus approach covering the most relevant aspects of basic research methodology in the field including appropriate controls,sample preparation and handling,and *** three rounds of feedback,a consensus was finally reached on the most important aspects and considerations for conducting high-quality research on potentised *** We present a series of recommendations on a range of topics including experimental controls,system stability,blinding and randomisation,environmental influences,and procedures for the preparation of potentised samples and controls,and we address some specific challenges of this research *** This expert consensus process resulted in a robust set of methodological guidelines for research on potentised preparations and provides a valuable framework that will inform and improve the quality of subsequent research in this emerging field.

关键词： Research guidelines Fundamental research Basic research Complementary and integrative medicine Potentisation Potentised preparations

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Optimization of performance of the KM2A full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 d.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 d.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 s.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 d.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 d.Ruffolo A.sáiz d.semikoz 邵澄宇邵琅 O.shchegolev 盛祥东舒富文宋慧超 Yu.V.stenkin V.stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 lHAAsO Collaboration Key laboratory of Particle Astrophyics&Experimental Physics division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany state Key laboratory of Particle detection and Electronics China University of science and Technology of China Hefei 230026China school of Physical science and Technology&school of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and space science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key laboratory of dark Matter and space Astronomy&Key laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-dao lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(Zhuhai)&school of Physics(Guangzhou)&sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China school of Physics and Astronomy Yunnan UniversityKunming 650091China département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the large High Altitude Air shower Observatory(lHAAsO)has been in operation since July *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from lHAAsO and other experiments.

关键词： γ-ray Crab Nebula significance

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