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Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli m.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik m.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot m. Ait Tamlihat B. Aitbenchikh I. Aizenberg m. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt m. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi m. Algren m. Alhroob B. Ali H.m.J. Ali S. Ali S.W. Alibocus m. Aliev G. Alimonti W. Alkakhi C. Allaire B.m.m. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani m. Alvarez Estevez A. Alvarez Fernandez m. Alves Cardoso m.G. Alviggi m. Aly Y. Amaral Coutinho A. Ambler C. Amelung m. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel m.T. Anthony E. Antipov m. Antonelli F. Anulli m. Aoki T. Aoki J.A. Aparisi Pozo m.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin m. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia m. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.m. Baldin P. Balek E. Ballabene F. Balli L.m. Baltes W.K. Balunas J. Balz E. Banas m. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak m. Barakat E.L. Barberio D. Barberis m. Barbero m.Z. Barel K.N. Barends T. Barillari m-S. Barisits T. Barklow P. Baron D.A. Baron mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING

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Fungitoxicity of methyl Iodide, Sulfuryl Fluoride, and methyl Bromide to Ceratocystis fagacearum in Red Oak, maple, Poplar, birch and Pine Wood

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American Journal of Plant Sciences 2011年第2期2卷 268-275页

作者： Kayimbi m. Tubajika Alan V. Barak 不详

The threat of wood-inhabiting fungi to American hardwood forests, lumber industries, and tourism has enormous eco-nomic significance, and the aesthetic and dollar values of properties are potentially disastrous. The efficacy of methyl iodide (meI) and sulfuryl fluoride (SF) for eradicating wood-inhabiting fungus, Ceratocystis fagacearum was assessed in wood blocks of birch, maple, poplar and red pine based on in-vitro experiments. In a series of replicated controlled experiments, wood blocks were inoculated with a 1g macerated mycelium/spores mixture of C. fagacearum and fumigated with 160 and 240 g/m3 of meI, SF and methyl bromide (meBr) as control) for 24, 48, and 72 hours. Analysis of variance showed that fumigant types, fumigant concentrations, and exposure time as well as their interactions (C x T) had an effect on C. fagacearum recovery on tested wood species. Colonization of birch, maple, red pine, and poplar by C. fagacearum was significantly greater in non-fumigated samples than fumigated samples. C. fagacearum was greatly inhibited by meI than SF in all wood species tested. Overall, the C x T products of ≤ 4.108 g-h/m3 for meI and ≤ 8.755 g-h/m3 for SF were not effective in killing the fungus. These results suggest that longer treatment exposure time might achieve the goal of complete eradication of C. fagacearum and imply that meI performed as well as meBr in killing the fungus in some wood species by exposure time combination. Overall, meI was most effective in killing the fungus than SF under the conditions of this study with potential implications for quarantine use.

关键词： Disease Control Quarantine Treatment Fumigation Quercus Rubra

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AIPL1突变患者先天性Leber黑蒙表现型

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美国医学会眼科杂志（中文版） 2005年第2期17卷 119-120页

作者： Sharola Dharmaraj Ban P. Leroy melanie m. Sohocki Robert K. Koenekoop Isabelle Perrault Khalid Anwar Shagufta Khaliq R. Summathi Devi David G. birch Elaine De Pool Natalio Izquierdo Lionel Van maldergem mohammad Ismail Annette m. Payne Graham E. Holder Shomi S. Bhattacharya Alan C. Bird Josseline Kaplan Irene H. maumenee 刘欣怡（译）

目的：叙述26例先证者中芳香族羟基碳氢化合物受体蛋白样1蛋白质（AIPL1）突变的先天性Leber黑蒙（LCA）的表现型，并比较其他LCA相关性基因的表现型。叙述杂合子携带者的视网膜电图（ERG）。

关键词： Leber黑蒙表现型先天性突变患者碳氢化合物相关性基因视网膜电图受体蛋白蛋白质

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Search for the doubly charmed baryon ?cc+

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Science China(Physics,mechanics & Astronomy) 2021年第10期Mechanics & Astronomy) .卷 6-17页

作者： R. Aaij C. Abellán Beteta T. Ackernley B. Adeva m. Adinolfi H. Afsharnia C. A. Aidala S. Aiola Z. Ajaltouni S. Akar J. Albrecht F. Alessio m. Alexander A. Alfonso Albero Z. Aliouche G. Alkhazov P. Alvarez Cartelle S. Amato Y. Amhis L. An L. Anderlini A. Andreianov m. Andreotti F. Archilli A. Artamonov m. Artuso K. Arzymatov E. Aslanides m. Atzeni B. Audurier S. Bachmann m. Bachmayer J. J. Back P. Baladron Rodriguez V. Balagura W. Baldini J. Baptista Leite R. J. Barlow S. Barsuk W. Barter m. Bartolini F. Baryshnikov J. m. Basels G. Bassi B. Batsukh A. Battig A. Bay m. Becker F. Bedeschi I. Bediaga A. Beiter V. Belavin S. Belin V. Bellee K. Belous I. Belov I. Belyaev G. Bencivenni E. Ben-Haim A. Berezhnoy R. Bernet D. Berninghoff H. C. Bernstein C. Bertella A. Bertolin C. Betancourt F. Betti I. Bezshyiko S. Bhasin J. Bhom L. Bian m. S. Bieker S. Bifani P. Billoir m. birch F. C. R. Bishop A. Bitadze A. Bizzeti m. Bj?rn m. P. Blago T. Blake F. Blanc S. Blusk D. Bobulska J. A. Boelhauve O. Boente Garcia T. Boettcher A. Boldyrev A. Bondar N. Bondar S. Borghi m. Borisyak m. Borsato J. T. Borsuk S. A. Bouchiba T. J. V. Bowcock A. Boyer C. Bozzi m. J. Bradley S. Braun A. Brea Rodriguez m. Brodski J. Brodzicka A. Brossa Gonzalo D. Brundu A. Buonaura C. Burr A. Bursche A. Butkevich J. S. Butter J. Buytaert W. Byczynski S. Cadeddu H. Cai R. Calabrese L. Calefice L. Calero Diaz S. Cali R. Calladine m. Calvi m. Calvo Gomez P. Camargo magalhaes P. Campana A. F. Campoverde Quezada S. Capelli L. Capriotti A. Carbone G. Carboni R. Cardinale A. Cardini I. Carli P. Carniti L. Carus K. Carvalho Akiba A. Casais Vidal G. Casse m. Cattaneo G. Cavallero S. Celani J. Cerasoli A. J. Chadwick m. G. Chapman m. Charles P. Charpentier G. Chatzikonstantinidis C. A. Chavez Barajas m. Chefdeville C. Chen S. Chen A. Chernov V. Chobanova S. Cholak m. Chrzaszcz A. Chubykin V. Chulikov P. Ciambrone m. F. Cicala X. Cid Vidal G. Ciezarek P. E. L. Clarke m. Clemencic H. V. Clif J. Closier J. L. Cobbledick V. Coco J. A. B. Coelho J. Cogan E. Cogneras L. Nikhef National Institute for Subatomic Physics Physik-Institut Universit?t Zürich Oliver Lodge Laboratory University of Liverpool Instituto Galego de Física de Altas Enerxías (IGFAE) Universidade de Santiago de Compostela H.H. Wills Physics Laboratory University of Bristol Université Clermont Auvergne University of michigan Ann Arbor United States INFN Sezione di milano University of Cincinnati Fakult?t Physik Technische Universit?t Dortmund European Organization for Nuclear Research (CERN) School of Physics and Astronomy University of Glasgow ICCUB Universitat de Barcelona Department of Physics and Astronomy University of manchester Petersburg Nuclear Physics Institute NRC Kurchatov Institute (PNPI NRC KI) Cavendish Laboratory University of Cambridge Universidade Federal do Rio de Janeiro (UFRJ) Université Paris-Saclay INFN Sezione di Firenze INFN Sezione di Ferrara Physikalisches Institut Ruprecht-Karls-Universit?t Heidelberg Institute for High Energy Physics NRC Kurchatov Institute (IHEP NRC KI) Syracuse University Yandex School of Data Analysis Aix marseille Univ Laboratoire Leprince-Ringuet CNRS/IN2P3 Ecole Polytechnique Institut Polytechnique de Paris Institute of Physics Ecole Polytechnique Fédérale de Lausanne (EPFL) Department of Physics University of Warwick Centro Brasileiro de Pesquisas Físicas (CBPF) Imperial College London INFN Sezione di Genova National University of Science and Technology “mISIS” I. Physikalisches Institut RWTH Aachen University INFN Sezione di Pisa INFN Sezione di Cagliari Institute of Nuclear Physics moscow State University (SINP mSU) Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI) INFN Laboratori Nazionali di Frascati LPNHE Sorbonne Université Paris Diderot Sorbonne Paris Cité Universita degli Studi di Padova Universita e INFN Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences School of Physics and Technology Wuhan University University of Birmingham Università di modena e Reggio Emilia Department of Physics U

A search for the doubly charmed baryon ?cc+with the decay mode ?cc+→Ξc+K-π+is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb-1. No significant signal is observed within the invariant mass range of 3.6 to 4.0 GeV/c2. Upper limits are set on the ratio R of the production cross-section times the total branching fraction of the ?cc+→Ξc+K-π+decay with respect to the Ξcc++→Λc+K-π+π+decay. Upper limits at 95% credibility level for R in the range 0.005 to 0.11 are obtained for diferent hypotheses on the ?cc+mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15 GeV/c.

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Effect of mulching on Uptake of Copper and Nickel from Smelter-Polluted-Soil by Planted Tree Seedlings

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Open Journal of Air Pollution 2013年第3期2卷 56-62页

作者： Eva Komanicka Helja-Sisko Helmisaari markus Hartman Tiina m.Nieminen Department of Geochemistry Faculty of Natural SciencesComenius University BratislavaBratislavaSlovakia Finnish Forest Research Institute MetlaVantaaFinland Department of Forest Sciences University of HelsinkiHelsinkiFinland

Our aim was to determine the long-term effect of a mulching treatment on copper (Cu) and nickel (Ni) uptake by tree seedlings (Pinus sylvestris L. and Betula pubescens Ehrh.) from smelter-polluted forest soil in southwesternFinland. A mulch cover spread onto polluted barren soil did not have a clear positive impact on the biomass production and it did not decrease metal uptake by planted tree seedlings during a ten-year study period. In contrast, the Cu uptake by the above-ground parts of birch was increased as a result of mulching, although there were weak indications of slightly reduced availability of Cu and Ni to roots in the case of both species. As Cu and Ni concentrations of foliage and bark have been shown to be strongly affected by surface deposited metal containing aerosols, only the woody compartments were used as indicators of metal uptake from soil. The Cu:Ni ratios of woody compartments were lower than those predicted by the Cu:Ni ratios of soil suggesting that the soil extraction method used gives an underestimation of available Ni in relation to Cu. The lower soil Niexch concentrations on the mulched plots compared to the controls were in agreement with the slightly lower root Ni concentrations in the mulch treatments.

关键词： Bioavailability Biocompost birch Forest Soil Pine Restoration Wood Chips

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Natural Regeneration on Planted Clearcuts—The Easy Way to mixed Forest?

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Open Journal of Forestry 2016年第4期6卷 281-294页

作者： Emma Holmström Per magnus Ekö Karin Hjelm matts Karlsson Urban Nilsson Southern Swedish Forest Research Centre Swedish University of Agricultural Science Alnarp Sweden Skogforsk Sval&oumlv Sweden

Establishing mixed stands by stimulating natural in combination with planting could potentially ensure adequate stocking and meet shifting demands for forest products. Two long-term experiments were separately established in former Norway spruce (Picea abies L. Karst) stands in southern Sweden to be able to evaluate mixed forest establishment and management. The treatment plots were treated with different intensity of soil scarification (disc trenching, soil inversion and control) to test effects of soil disturbance on regeneration success. Five years later, both experiments were used for a first evaluation, where seedlings of all naturally regenerated tree species were counted together with estimates of the cover and height of other vegetation. This was made in sample plots in symmetric grids. Testing the effects of scarification and distance to seed source on natural regeneration of silver birch (Betula pendula Roth.) and downy birch (B. pubescens Ehrh.) showed that both scarification type and degree of soil disturbance significantly affected seedling counts but only if seed sources were close. In conclusion, conventional management practices for regenerating coniferous forest may be suitable for establishing mixed forest stands with combinations of planted and naturally regenerated seedlings.

关键词： Betula birch Soil Scarification Seed Dispersal

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人工模拟降水条件下旱作农田土壤“birch效应”及其响应机制

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生态学报 2016年第2期36卷 306-317页

作者：陈荣荣刘全全王俊刘文兆 Upendra m. Sainju 西北大学城市与环境学院西安710127 中国科学院水利部水土保持研究所杨凌712100 USDA-ARS Northern Plains Agricultural Research Laboratory Sidney MT 59270 USA

降水事件引起干土复湿刺激土壤CO_2,脉冲释放的现象被称为"birch效应",其作用机制可能是降水刺激土壤"底物供给"增加或引起土壤"微生物胁迫"所致。为深入了解土壤"birch效应"对降水格局改变的响应过程及内在机制,在冬小麦拔节期和夏闲... 详细信息

降水事件引起干土复湿刺激土壤CO_2,脉冲释放的现象被称为"birch效应",其作用机制可能是降水刺激土壤"底物供给"增加或引起土壤"微生物胁迫"所致。为深入了解土壤"birch效应"对降水格局改变的响应过程及内在机制,在冬小麦拔节期和夏闲期分别进行了不同降水量(1-32 mm)人工模拟降水实验,系统观测了降水后0-72 h土壤呼吸及土壤碳组分变化特征,结果表明:土壤呼吸随降水量的增大而增强,1-16 mm降水土壤呼吸峰值出现在降水后4h,而32 mm降水土壤呼吸峰值出现时间滞后了4 h。与较小降水量相比,较大的降水量能增加土壤呼吸但会推迟土壤呼吸峰值出现时间。土壤呼吸速率峰值(SRP)与降水量(P)呈幂相关(拔节期:SR-P=0.97P^(0.09),R^2=0.5,Pbirch效应"是由"微生物胁迫"所致。而在夏闲期,当降水量小于8 mm时土壤呼吸与微生物量碳相关性显著,即以微生物胁迫机制占主导;8 mm降水处理下土壤呼吸与氯仿熏蒸-K_2SO_4提取态有机碳相关性达到极显著水平,指示则为两种机制共同起作用,而当降水量大于16 mm时,土壤呼吸主要与可提取态有机碳显著相关,"birch"效应转为以底物供给机制占主导。与夏闲期相比,冬小麦拔节期作物生长会削弱"birch效应",并改变其响应机制。

关键词：模拟降水土壤呼吸 birch效应底物供给微生物胁迫

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西班牙西北部San Isidro和Leitariegos地区全新世孢粉学的比较研究(英文)

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古生物学报 2003年第1期42卷 111-117页

作者： m.A.FOmBELLA BLANCO E.GARCIA-ROVES FERNADEZ E.PUENTE GARCIA 里昂大学生物系西班牙里昂24071

文中报道了西班牙西北部San Isidro和Leitariegos地区两口钻井全新世孢粉学比较研究的结果。孢粉分析结果显示了两地孢粉组合成分上的不同。根据从San Isidro地区泥炭沼泽获得的孢粉组合中乔木和灌木花粉百分含量变化,建立了两个组合带... 详细信息

文中报道了西班牙西北部San Isidro和Leitariegos地区两口钻井全新世孢粉学比较研究的结果。孢粉分析结果显示了两地孢粉组合成分上的不同。根据从San Isidro地区泥炭沼泽获得的孢粉组合中乔木和灌木花粉百分含量变化,建立了两个组合带。孢粉植物群代表了一个松属占统治地位的森林,桦属、栎属、榛属等花粉含量变化序列可能和气温升高,降雨量增加有关。根据乔木花粉相对丰度变化,Leitariegos地区钻井剖面建立了3个孢粉组合。桦本属花粉含量增加说明是桦树林,栎属和榛属花粉居次要地位,松属花粉含量下降。文中还总结了两个孢粉序列所反映的人类活动、植被演替以及地形景观改变等之间的关系。两地钻井剖面底部碳同位素年代测定表明二者的底部并不同时。

关键词：西班牙全新世孢粉组合植被史 Leitariegos地区 SanIsidro地区

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用于配抄液体包装纸板原纸的SCAN云杉CTmP和桦木BKP浆料性能的研究

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北方造纸 1995年第4期16卷 14-18页

作者：刘晏 Kaunu.,m 中国林业科学研究院林产化学工业研究所

本文阐述了使用ＳＣＡＮ云杉ＣＴＭＰ和桦木ＢＫＰ配抄液体包装纸板（ＬＰＢ）时，浆料的配比和游离度对液体包装纸板芯层和液体包装纸板原纸物理强度指标的影响。通过实验及电子显微镜和光学显微镜对ＬＰＢ原纸表面和截面的纤维结合形... 详细信息

本文阐述了使用ＳＣＡＮ云杉ＣＴＭＰ和桦木ＢＫＰ配抄液体包装纸板（ＬＰＢ）时，浆料的配比和游离度对液体包装纸板芯层和液体包装纸板原纸物理强度指标的影响。通过实验及电子显微镜和光学显微镜对ＬＰＢ原纸表面和截面的纤维结合形态的观察，证明了用ＣＴＭＰ代替漂白化学浆与桦木ＢＫＰ配抄ＬＰＢ芯层是可行的，并探索了ＣＴＭＰ适宜的配用量及合理的游离度范围。

关键词：纸板液体包装纸板化学浆 SCAN云杉桦木 BKP浆

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LiDAR Helps Differentiate Stand Health and Productivity Levels within a Northern Hardwood Forest

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Open Journal of Forestry 2020年第1期10卷 66-80页

作者： Christopher F. Hansen Paul G. Schaberg Allan m. Strong Shelly A. Rayback Gary J. Hawley Rubenstein School of Environment and Natural Resources The University of Vermont Burlington VT USA USDA Forest Service Northern Research Station Burlington VT USA Geography Department The University of Vermont Burlington VT USA

Light detection and ranging (LiDAR) data can provide detailed information about three-dimensional forest structure. However, links between forest structure and tree function have not been fully evaluated using LiDAR. We assessed the relationship of LiDAR-derived structural categories to tree health and productivity on 36 hardwood plots at the Hubbard Brook Experimental Forest, New Hampshire, USA. We established nine plot replicates for each of four LiDAR-based vegetation categories: 1) high crown and high understory closure;2) high crown and low understory closure;3) low crown and high understory closure;and 4) low crown and low understory closure. Ground-based measures of canopy structure, site, stand and individual tree measures were collected on plots during summer 2012. Significant differences among LiDAR categories were found for several response variables. Lower basal area increment for sugar maple (Acer saccharum), decreased foliar nutrition for yellow birch (Betula alleghaniensis), and lower overall crown health were all associated with high understory closure provided that overstory closure was also high. These results suggest that LiDAR measures can be used to assess competitive interactions between overstory and understory vegetation, and that LiDAR shows promise for identifying stands with reduced health and productivity due to factors such as competition or overstocking.

关键词： Basal Area Increment Crown Health Foliar Nutrition Tree Function Tree mortality

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