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Search for the rare decay B^(0)→J/ψФ

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Chinese Physics C 2021年第4期45卷 47-60页

作者： R.Aaij C.Abellin Beteta T.Ackernley B.Adeva M.Adinolfi H.Afsharnial 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.Bachmaver J.J.Back S.Baker P.Baladron Rodriguez V.Balagura W.Baldinit 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.Bedeschis I.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella E.Bertholet A.Bertolin C.Betancourt F.Betti M.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker S.Bifani P.Billoir M.Birch F.C.R.Bishop A.Bizzeti M.Biorn 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 Rodriguezs M.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura C.Burr A.Burschee 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 A.Camboni P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbonel 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 Ph.Charpentier G.Chatzikonstantinidis C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.-G.Chitic 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.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu n.Cooke G.Coombs G.Corti C.M.Costa Sobral B.Couturier D.C.Craik J.Crkovska M.Cruz Centro Brasileiro de Pesquisas Fisicas(CBPF) Riode JaneiroBrazil Universidade Federal do Riode Janeiro(UFRJ) Riode JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School of Physics State Key Laboratory of nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BejingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Clermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universitq Paris-Saclay CNRS/IN2P3IJCLabOrsayFrance LPnHE Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany Max-Planck-Institut fir Kernphysik(MPIK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland InFn Sezione di Bari BariItaly InFn Sezione di Bologna BolognaItaly InFn Sezione di Ferrara FerraraItaly InFn Sezione di Firenze FirenzeItaly InFn Laboratori nazionali di Frascati Frascatiltaly InFn Sezione di Genova GenovaItaly InFn Sezione di Milano Bicocca Milanolaly InFn Sezione di Milano MilanoItaly InFn Sezione di Cagliari Monserratoltaly Universita degli Studi di Padova Universita e INFNPadovaPadovaItaly InFn Sezione di Pisa PisaItaly InFn Sezione di Roma Tor Vergata RomaItaly InFn Sezione di Roma La Sapienza RomaItaly nikhef national Institute for Subatomic Physics AmsterdamNetherlands nikhef national Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands Henryk niewodniczanski Institute of nuclear Physics Polish Academy of Sciences KrakowPoland AGH-University of Science and Technology Faculty of Physics and Applied Computer Science

A search for the rare decay B^(0)→J/ψФis performed using Pp collision data collected with the LHCb dete-ctor at centre-of-mass energies of 7,8 and 13 TeV,corresponding to an integrated luminosity of9 *** significant signal of the decay is observed and an upper limitof 1.1x 10^(-7)at 90%confidence level is set on the branching fraction.

关键词： B physics flavour physics rare decay ω-Фmixing branching fraction

与启东肝癌防治研究所协作的20年:约翰霍普金斯大学的经验

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中国肿瘤 2012年第10期21卷 732-743页

作者：托马斯.肯瑟勒盼鹊西亚.英格纳约翰.格鲁普曼约翰霍普金斯大学布隆伯格公共卫生学院环境卫生学系美国巴尔的摩21205

值启东肝癌防治研究所建所40周年之际,就约翰霍普金斯大学和启东肝癌防治研究所在过去 20 年中在肝癌病因学和预防协作研究方面的共识和亮点作一报道。共同的科学目标、努力的工作以及深厚的友谊是取得成功的动力。

关键词：肝癌化学预防黄曲霉毒素启东

叶绿酸对肝癌高发区黄曲霉毒素暴露人群的干预研究

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中国肿瘤 2004年第5期13卷 270-272页

作者：王金兵 Patricia A.Egner 朱源荣张宝初吴燕张启南钱耕荪旷双远 Stephen J.Gange Lisa P.Jacobson Kathy J.Helzlsoure George S.Bailey john D.Groopman Thomas W.Kensler 江苏省启东肝癌防治研究所江苏启东226200 Bloomberg School of Public Health johns Hopkins University 上海市肿瘤研究所上海200032

[目的]评估叶绿酸能否降低肝癌高危人群尿中黄曲霉毒素(AFT)鄄n7鄄鸟嘌呤的水平。[方法]采用随机双盲、以安慰剂为对照的预防干预试验。将180名健康成人随机分成叶绿酸干预组(服用100mg叶绿酸)和安慰剂对照组。采用顺序免疫亲和色谱法... 详细信息

[目的]评估叶绿酸能否降低肝癌高危人群尿中黄曲霉毒素(AFT)鄄n7鄄鸟嘌呤的水平。[方法]采用随机双盲、以安慰剂为对照的预防干预试验。将180名健康成人随机分成叶绿酸干预组(服用100mg叶绿酸)和安慰剂对照组。采用顺序免疫亲和色谱法和液相色谱法结合电子喷射质谱法测定尿中AFT鄄n7鄄鸟嘌呤的变化。[结果]在169份尿样中,105份检出AFT鄄n7鄄鸟嘌呤。叶绿酸组尿中AFT鄄n7鄄鸟嘌呤比安慰剂组下降了55%(P=0.036)。未见副作用。[结论]应用叶绿酸或富含叶绿素的食物进行预防干预是可能阻断肝癌的有效手段。

关键词：肝细胞肿瘤黄曲霉毒素叶绿酸黄曲霉毒素-n^7-鸟嘌呤干预

An Earth-mass planet in a time of COVID-19:KMT-2020-BLG-0414Lb

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Research in Astronomy and Astrophysics 2021年第9期21卷 243-261页

作者： Weicheng Zang Cheongho Han Iona Kondo Jennifer C.Yee Chung-Uk Lee Andrew Gould Shude Mao Leandro de Almeida Yossi Shvartzvald Xiangyu Zhang Michael D.Albrow Sun-Ju Chung Kyu-Ha Hwang Youn Kil Jung Yoon-Hyun Ryu In-Gu Shin Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W.Pogge john Drummond Thiam-Guan Tan JoséDias do nascimento Júnior Dan Maoz Matthew T.Penny Wei Zhu Ian A.Bond Fumio Abe Richard Barry David P.Bennett Aparna Bhattacharya Martin Donachie Hirosane Fujii Akihiko Fukui Yuki Hirao Yoshitaka Itow Rintaro Kirikawa naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Greg Olmschenk Clément Ranc nicholas J.Rattenbury Yuki Satoh Hikaru Shoji Stela Ishitani Silva Takahiro Sumi Daisuke Suzuki Yuzuru Tanaka Paul J.Tristram Tsubasa Yamawaki Atsunori Yonehara Andreea Petric Todd Burdullis Pascal Fouqué Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Chungbuk National UniversityCheongju 28644Republic of Korea Department of Earth and Space Science Graduate School of ScienceOsaka UniversityToyonakaOsaka 560-0043Japan Center for Astrophysics j Harvard&Smithsonian 60 Garden St.CambridgeMA 02138USA Korea Astronomy and Space Science Institute Daejon 34055Republic of Korea University of Science and Technology Korea(UST)217 Gajeong-ro Yuseong-guDaejeon 34113Republic of Korea Max-Planck-Institute for Astronomy Königstuhl 1769117 HeidelbergGermany Department of Astronomy Ohio State University140 W.18th Ave.ColumbusOH 43210USA national Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Universidade Federal do Rio Grande do norte(UFRn) Departamento de F´1sica59078-970NatalRNBrazil Department of Particle Physics and Astrophysics Weizmann Institute of ScienceRehovot 76100Israel University of Canterbury Department of Physics and AstronomyPrivate Bag 4800Christchurch 8020New Zealand School of Space Research Kyung Hee UniversityYonginKyeonggi 17104Republic of Korea Possum Observatory PatutahiGisbourneNew Zealand Perth Exoplanet Survey Telescope PerthAustralia School of Physics and Astronomy Tel-Aviv UniversityTel-Aviv 6997801Israel Department of Physics and Astronomy Louisiana State UniversityBaton RougeLA 70803 USA Canadian Institute for Theoretical Astrophysics University of Toronto60 St George StreetTorontoON M5S 3H8Canada Institute of natural and Mathematical Sciences Massey UniversityAuckland 0745New Zealand Institute for Space-Earth Environmental Research Nagoya UniversityNagoya 464-8601Japan Code 667 NASA Goddard Space Flight CenterGreenbeltMD 20771USA Department of Astronomy University of MarylandCollege ParkMD 20742USA Department of Physics University of AucklandPrivate Bag 92019AucklandNew Zealand Department of Earth and Planetary Science Graduate School of ScienceThe University of Tokyo7-3-1 Hongo

We report the discovery of KMT-2020-BLG-0414 Lb,with a planet-to-host mass ratio q2=0.9-1.2×10-5=3-4 q⊕at 1σ,which is the lowest mass-ratio microlensing planet to *** with two other recent discoveries(4?q/q⊕?6),it fills out the previous empty sector at the bottom of the triangular(log s,log q)diagram,where s is the planet-host separation in units of the angular Einstein radiusθ***,these discoveries call into question the existence,or at least the strength,of the break in the mass-ratio function that was previously suggested to account for the paucity of very low-q *** to the extreme magnification of the event,Amax~1450 for the underlying single-lens event,its light curve revealed a second companion with q3~0.05 and|log s3|~1,i.e.,a factor~10 closer to or farther from the host in *** measurements of the microlens parallaxπE and the angular Einstein radiusθE allow estimates of the host,planet and second companion masses,(M1,M2,M3)~(0.3 M⊙,1.0 M⊕,17 MJ),the planet and second companion projected separations,(a⊥,2,a⊥,3)~(1.5,0.15 or 15)au,and system distance DL~1 *** lens could account for most or all of the blended light(I~19.3)and so can be studied immediately with high-resolution photometric and spectroscopic observations that can further clarify the nature of the *** planet was found as part of a new program of high-cadence follow-up observations of high-magnification *** detection of this planet,despite the considerable difficulties imposed by COVID-19(two KMT sites and OGLE were shut down),illustrates the potential utility of this program.

关键词： gravitational lensing:micro

补充维生素D预防骨折——随机对照试验汇总分析

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美国医学会杂志（中文版） 2006年第4期25卷 248-248页

作者： Heike A. Bischoff-Ferrari Waiter C. Willett john B. Wong 苗峥（译）

背景：对于脊椎以外的骨折而言，补充口服维生素D的预防作用和用量仍无定论。目的：评估补充维生素D在预防老年髋骨骨折和非脊椎骨折方面的效果。数据来源：使用MEDLInE、Cochrance对照试验记录（1960～2005年）以及EMBASE（1991-2005... 详细信息

背景：对于脊椎以外的骨折而言，补充口服维生素D的预防作用和用量仍无定论。目的：评估补充维生素D在预防老年髋骨骨折和非脊椎骨折方面的效果。数据来源：使用MEDLInE、Cochrance对照试验记录（1960～2005年）以及EMBASE（1991-2005年），对英文和非英文文章进行系统回顾。通过与临床专家接触，通过检索美国社会骨和骨矿研究协会提供的参考文献和摘要（1995～2004年）．进一步寻找更多的研究。检索词包括随机对照试验（randomized controlled trial，RCT）、临床对照试验、随机分配、双盲法、维生素D3、维生素D2；25-羟基维生素D、骨折、人类、老年、摔倒和骨密度。研究选取：纳入的研究仅限于口服补充维生素D（维生素D3、维生素D2、补钙或不补钙）与补钙或安慰剂比较的双盲RCTs。试验于检查髋部骨折或非脊椎骨折的老年人（年龄≥60岁）中进行。数据提取：两位作者根据预先规定独立提取相关数据，其中包括研究质量指标。数据综合：所有的汇总分析均以随机效应模型为基础。5项有关髋部骨折的RCTs（n=9294）和7项有关非脊椎骨折危险的RCTs（n=9820）符合我们的纳入标准。所有试验均使用了维生素D3。对髋部和非脊椎骨折预防研究的异质性亦进行观察，用低剂量（400IU／d）和高剂量（700～800IU／d）分别合并RCTs后异质性消失。与补钙或安慰剂相比，每天服700～800IU的维生素D可使髋部骨折的相对危险（relative risk，aa）下降26％（3项RCTs共计5572人；RR，0．74；95％可信区间[confidence interval，CI]，0．61～0．88），使非脊椎骨折的相对危险下降23％（5项RCTs共计6098人；RR，0．77；95％CI，0．68～0．87）。每天服400IU的维生素D（2项RCTs共计3722人；髋部骨折RR，1．15；95％CI，0．88～1．50；非脊椎骨折RR，1．03；95％CI，0．86—1．24）未见明显获益。结论：口服补充维生素D（700～800IU／d）可以降低尚能活动的老人或慈善机构收容的老年人发生髋部骨折和脊椎以外骨折的危险，每天口服400IU维生素D并不足以预防骨折。

关键词：随机对照试验维生素D3 脊椎骨折预防作用汇总分析 25-羟基维生素D interval 临床对照试验 MEDLInE 髋部骨折

nature：大规模研究揭示生命所必需的基因

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现代生物医学进展 2016年第31期16卷 I0002-I0003页

作者： Dickinson, Mary E. Flenniken, Ann M. Ji, Xiao Teboul, Lydia Wong, Michael D. White, Jacqueline K. Meehan, Terrence F. Weninger, Wolfgang J. Westerberg, Henrik Adissu, Hibret Baker, Candice n. Bower, Lynette Brown, James M. Caddle, L. Brianna Chiani, Francesco Clary, Dave Cleak, James Daly, Mark J. Denegre, James M. Doe, Brendan Dolan, Mary E. Edie, Sarah M. Fuchs, Helmut Gailus-Durner, Valerie Galli, Antonella Gambadoro, Alessia Gallegos, Juan Guo, Shiying Horner, neil R. Hsu, Chih-Wei johnson, Sara J. Kalaga, Sowmya Keith, Lance C. Lanoue, Louise Lawson, Thomas n. Lek, Monkol Mark, Manuel Arschall, Susan M. Mason, Jeremy McElwee, Melissa L. newbigging, Susan nutter, Lauryl M. J. Peterson, Kevin A. Ramirez-Solis, Ramiro Rowland, Douglas J. Ryder, Edward Samocha, Kaitlin E. Seavitt, john R. Selloum, Mohammed Szoke-Kovacs, Zsombor Tamura, Masaru Trainor, Amanda G. Tudose, Ilinca Wakana, Shigeharu Warren, Jonathan Wendling, Olivia West, David B. Wong, Leeyean Yoshiki, Atsushi MacArthur, Daniel G. Tocchini-Valentini, Glauco P. Gao, Xiang Flicek, Paul Bradley, Allan Skarnes, William C. Justice, Monica J. Parkinson, Helen E. Moore, Mark Wells, Sara Braun, Robert E. Svenson, Karen L. de Angelis, Martin Hrabe Herault, Yann Mohun, Tim Mallon, Ann-Marie Henkelman, R. Mark Brown, Steve D. M. Adams, David J. Lloyd, K. C. Kent McKerlie, Colin Beaudet, Arthur L. Bucan, Maja Murray, Stephen A. Dept Mol Physiol & Biophys Houston TX 77030 USA Toronto Ctr Phenogen Toronto ON M5T 3H7 Canada Mt Sinai Hosp Toronto ON M5G 1X5 Canada Univ Penn Perelman Sch Med Genom & Computat Biol Program Philadelphia PA 19104 USA Med Res Council Harwell Mammalian Genet Unit Harwell OX11 0RD Oxon England Mary Lyon Ctr Harwell OX11 0RD Oxon England Hosp Sick Children Mouse Imaging Ctr Toronto ON M5T 3H7 Canada Wellcome Trust Sanger Inst Wellcome Trust Genome Campus Cambridge CB10 1SA England European Bioinformat Inst European Mol Biol Lab Wellcome Trust Genome Campus Cambridge CB10 1SD England Med Univ Vienna Ctr Anat & Cell Biol A-1090 Vienna Austria Hosp Sick Children 555 Univ Ave Toronto ON M5G 1X8 Canada Jackson Lab 600 Main St Bar Harbor ME 04609 USA Univ Calif Davis Mouse Biol Program Davis CA 95618 USA Italian natl Res Council CnR Inst Cell Biol & Neurobiol Monterotondo Mouse Clin I-00015 Monterotondo Italy Massachusetts Gen Hosp Analyt & Translat Genet Unit Boston MA 02114 USA Broad Inst MIT & Harvard Program Med & Populat Genet Cambridge MA 02142 USA German Res Ctr Environm Hlth Helmholtz Zentrum Munchen Inst Expt Genet D-85764 Neuherberg Germany German Mouse Clin D-85764 Neuherberg Germany Baylor Coll Med Dept Mol & Human Genet Houston TX 77030 USA nanjing Univ Nanjing Biomed Res Inst Collaborat Innovat Ctr Genet & Dev SKL Pharmaceut Biotechnol & Model Anim Res Ctr Nanjing 210061 Jiangsu Peoples R China Univ Strasbourg ICS Infrastruct Natl PHENOMIN F-67404 Illkirch Graffenstaden France Univ Strasbourg INSERM CNRS IGBMC F-67404 Illkirch Graffenstaden France RIKEn BioResource Ctr Tsukuba Ibaraki 3050074 Japan Childrens Hosp Oakland Res Inst Oakland CA 94609 USA IMPC San Anselmo CA 94960 USA Tech Univ Munich Sch Life Sci Weihenstephan Chair Expt Genet D-81675 Freising Weihenstephan Germany German Ctr Diabet Res DZD D-85764 Neuherberg Germany Francis Crick Inst Mill Hill Lab Mill Hill London NW1 1AT England Univ Penn Perlman

在哺乳动物基因组中。大约三分之一的基因是生命所必需的。在一项新的研究中，来自美国贝勒医学院等多个机构的研究人员描述了这些基因的大规模发现。以及它将如何影响对哺乳动物发育和人类疾病的理解。相关研究结果在线发表在nature期... 详细信息

在哺乳动物基因组中。大约三分之一的基因是生命所必需的。在一项新的研究中，来自美国贝勒医学院等多个机构的研究人员描述了这些基因的大规模发现。以及它将如何影响对哺乳动物发育和人类疾病的理解。相关研究结果在线发表在nature期刊上，论文标题为“High—throughput discovery of novel developmental phenotypes”。

关键词：动物基因组生命哺乳动物研究人员人类疾病医学院

美洲钩虫第三期幼虫cDnA库的构建及分析(英文)

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中国寄生虫学与寄生虫病杂志 2000年第1期18卷 26-29页

作者：詹斌 johnHawdon 单强任海南强慧琴肖树华李铁华冯正 PeterHotez 中国预防医学科学院寄生虫病研究所上海200025 美国耶鲁大学医学院公共卫生与流行病学系 ct06520

[目的 ]构建美洲钩虫cDnA库从而获得该钩虫的基因结构信息以便从中寻找目的基因。 [方法 ]从美洲钩虫第三期幼虫中提取mRnA ,以mRnA为模板合成cDnA并连接入载体λZAPII以构建cDnA库 ,随机从该cDnA库中挑选单克隆进行测序获得EST并与基... 详细信息

[目的 ]构建美洲钩虫cDnA库从而获得该钩虫的基因结构信息以便从中寻找目的基因。 [方法 ]从美洲钩虫第三期幼虫中提取mRnA ,以mRnA为模板合成cDnA并连接入载体λZAPII以构建cDnA库 ,随机从该cDnA库中挑选单克隆进行测序获得EST并与基因库中现有基因进行比较推导其编码蛋白。 [结果 ]成功地构建了美洲钩虫cDnA库 ,未扩增库的滴度为 1× 10 7,插入基因片断的大小为 75 0～ 30 0 0bp .,库的重组率高 ,并从库中获得 11个EST序列 ,其中 7个与现有基因库中的某些功能蛋白有同源性。 [结论 ]首次构建了代表性较高的美洲钩虫cDnA库并从中鉴定出某些功能基因。

关键词：美洲钩虫幼虫 cDnA库构建 ESTs

Search for the doubly heavy baryons Ωbc0 and Ξbc0 decaying to Λc+π- and Ξc+π-

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Chinese Physics C 2021年第9期45卷 14-25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 *** D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.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 A.Camboni 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 Ph.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.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu n.Cooke G.Coombs G.Corti C.M.Costa Sobral B.Couturier D.C.Craik J.Crkovská M.Cruz Torres R.Currie C.L.Da Silva E.Dall'Occo J.Dalseno C.D'Amb University of Edinburgh Horia Hulubei national Institute of Physics and nuclear Engineering InFn Sezione di Bari Università di Bari Los Alamos national Laboratory (LAnL) Van Swinderen Institute University of Groningen Universiteit Maastricht AGH-University of Science and Technology Faculty of Physics and Applied Computer Science Université Clermont Auvergne Università di Cagliari Institute for nuclear Research of the national Academy of Sciences (KInR) School of Physics University College Dublin nSC Kharkiv Institute of Physics and Technology (nSC KIPT) InFn Sezione di Perugia STFC Rutherford Appleton Laboratory School of Physics and Astronomy Monash University novosibirsk State University CnRS/In2P3 Department of Physics and Astronomy Uppsala University Università di Genova School of Physics State Key Laboratory of nuclear Physics and Technology Peking University national Center for nuclear Research (nCBJ) Università di Roma Tor Vergata Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio) Universidade Federal do Triangulo Mineiro (UFTM) Institute of Particle Physics LPC Central China normal University Hangzhou Institute for Advanced Study UCAS Instituto de Fisica Corpuscular Centro Mixto Universidad de Valencia-CSIC nikhef national Institute for Subatomic Physics and VU University Amsterdam national Research Tomsk Polytechnic University AGH-University of Science and Technology Faculty of Computer Science Electronics and Telecommunications University of Michigan Università di Siena Università di Padova Scuola normale Superiore national Research Centre Kurchatov Institute Università degli Studi di Milano MSU-Iligan Institute of Technology (MSU-IIT) Università di Firenze InFn Sezione di Roma La Sapienza Institut für Physik Universit?t Rostock InFn Sezione di Milano Departamento de Fisica Universidad nacional de Colombia Universit?t Bonn-Helmholtz-Institut für Strahlen und Kernphysik Hanoi University of Science Università di Pisa P.n. Lebedev Physical Institute Russian Academy of Science (LPI RAS) Università

The first search for the doubly heavy Ωbc0baryon and a search for the Ξbc0baryon are performed using pp collision data collected via the LHCb experiment from 2016 to 2018 at a centre-of-mass energy of 13 TeV,corresponding to an integrated luminosity of 5.2 *** baryons are reconstructed via their decays to ∧c+π-andΞc+π-.no significant excess is found for invariant masses between 6700 and 7300 MeV/c2,in a rapidity range from2.0 to 4.5 and a transverse momentum range from 2 to 20 MeV/*** limits are set on the ratio of the Ωbc0andΞbc0production cross-section times the branching fraction to ∧c+π-（Ξc+π-） relative to that of the ∧b0（Ξb0） baryon,for different lifetime hypotheses,at 95% confidence *** upper limits range from 0.5×10-4to 2.5×10-4for theΩbc0→∧c+π-(Ξbc0→∧c+π-) decay,and from 1.4×10-3to 6.9×10-3for the Ωbc0→Ξc+π-(Ξbc0→Ξc+π-) decay,depending on the considered mass and lifetime of the Ωbc0(Ξbc0) baryon.

关键词： B physics quarkonium spectroscopy heavy quark production

如是之屋——来自中国乡村的20个自建房故事

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建筑实践 2019年第8期2卷 32-35页

作者：林君翰索尼·德瓦巴克图尼伊娃·赫仑特(采访) 丽贝卡·希施贝格(采访) 香港大学香港大学"城村架构"设计研究室

除却造就形式化的同一标准,建筑还可以带来丰富多样的生活方式——这才是乡村真正的需求。""这场可以被称为世界上最快最大规模的城市化进程,也造成了一代人精神的极速现代化。当代中国社会似乎正在审慎地探寻——在这个极其现代的环境... 详细信息

除却造就形式化的同一标准,建筑还可以带来丰富多样的生活方式——这才是乡村真正的需求。""这场可以被称为世界上最快最大规模的城市化进程,也造成了一代人精神的极速现代化。当代中国社会似乎正在审慎地探寻——在这个极其现代的环境下,‘中国’到底意味着什么。

关键词：巴克图 frame