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人类脂肪组织抽吸物中脂肪细胞、血管间质成分和脂肪来源干细胞凋亡和坏死的分析

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中国美容整形外科杂志 2013年第11期24卷 I0023-I0023页

作者： Wei Z.Wang, Xin—Hua Fang Shelley J.williams Linda L.Stephenson Richard C.Baynosa Nancy Wong kayvan T.khiabani 魏峰(译者) 高景恒(译者) 袁继龙(译者) 内华达大学医学院外科中心整形外科美国内华达州拉斯维加斯《中国美容整形外科杂志》编辑部辽宁省人民医院整形外科

背景与目的脂肪来源干细胞（adipose-derived stem cells，ADSCs）已成为研究最多的成体干细胞。笔者对人类脂肪组织抽吸物中脂肪细胞、血管间质成分（stromal vascular fraction，SVF）和ADSCs凋亡和坏死进行分析。方法通过标准的吸脂... 详细信息

背景与目的脂肪来源干细胞（adipose-derived stem cells，ADSCs）已成为研究最多的成体干细胞。笔者对人类脂肪组织抽吸物中脂肪细胞、血管间质成分（stromal vascular fraction，SVF）和ADSCs凋亡和坏死进行分析。方法通过标准的吸脂术获取人类脂肪抽吸物（n=8）。将SVF从脂肪细胞中分离出来，并通过培养纯化ADSCs。通过一组干细胞标记物来确认培养的ADSCs的表面表型。从SVF中可分离出3种干细胞亚群（CD90^＋／CIM5^-，CDl05^＋／CD45^-及CD34^＋／CD31^-）。利用流式细胞术分析，通过膜联蛋白V／碘化丙啶检验确定细胞凋亡和细胞死亡。结果由倍增时间以及油红O染色和碱性磷酸酶染色均为阳性证明，培养的ADSCs具有长期增殖和分化的能力。从脂肪抽吸物中获取的各部分细胞中，脂肪细胞出现（19．7±3．7）％凋亡和（1．1±0．3）％坏死；SVF（22．0±6．3）％凋亡和（11．2±1．9）％坏死；SVF的坏死率较脂肪细胞高（P〈0．05）。在SVF细胞中，（51．1±3．7）％细胞表达CD90^＋／CD45^-，（7．5±1．0）％细胞表达CDl05^＋／CD45^-，而（26．4±3．8）％细胞表达CD34^＋／CD31^-。表达CD34^＋／CD31^-与表达CDl05^＋／CD45^-的ADSCs相比，其细胞凋亡和细胞坏死的概率均较低（P〈0．05）。结论与脂肪细胞相比，ADSCs有较高的细胞凋亡和细胞坏死发生概率。而在ADSCs亚群之间，细胞凋亡和细胞坏死的程度也明显不同。

关键词：脂肪抽吸物脂肪细胞细胞凋亡脂肪组织间质成分坏死率人类血管

Evidence of a J/ψΛstructure and observation of excited■^(-)states in the■b^(-)→J/ψΛk^(-) decay

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Science Bulletin 2021年第13期66卷 1278-1287,M0003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 S.Baker 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 E.Bertholet 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.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 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.Crkovská M.Cruz Torres R.Currie C.L.Da Silva E.Dall’ Centro Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de 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) BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-ringuet(llr) PalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany Max-Planck-Institut für kernphysik(MPIk) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universität 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 FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Cagliari MonserratoItaly 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 KrakówPoland AGH-University of Science and Techno

First evidence of a structure in the J/ψΛinvariant mass distribution is obtained from an amplitude analysis of■b^(-)J/ψΛk^(-)*** observed structure is consistent with being due to a charmonium pentaquark with strangeness with a significance of 3.1r including systematic uncertainties and lookelsewhere *** mass and width are determined to be 4458:8±2:9t4:7-1:1 MeV and 17:3±6:5t8:0-5:7 MeV,respectively,where the quoted uncertainties are statistical and *** structure is also consistent with being due to two *** addition,the narrow excited■^(-)states,N■(1690)and■(1820),are seen for the first time in a■b^(-)decay,and their masses and widths are measured with improved *** analysis is performed using pp collision data corresponding to a total integrated luminosity of 9 fb^(-1),collected with the LHCb experiment at centre-of-mass energies of 7,8 and 13 TeV.

关键词： QCD Exotics Pentaquark Spectroscopy Quarkonium Particle and resonance production

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X-连锁高度近视伴有视锥功能异常

美国医学会眼科杂志（中文版） 2005年第1期17卷 64-64页

作者： TerriLYoung SamirS.Deeb ShawnM.Ronan AndrewT.Dewant AlisonB.Alvear GenaroS.Scavello PrasunaC.Paluru MarciaS.Brott TakaakiHayashi Ann NancyBenegas MarianneSchwartz LarryD.Atwood williams.Oetting ThomasRosenberg ArnoG.Motulsky RichardA.king 李扬

目的：流行性肌痛性眼病(BED)包括X-连锁高度近视，高度散光，视神经发育不良，继发的异常光反应出现的视网膜电流图闪动，以及绿色盲。该病定位于染色体Xq28，并且被最早认为是高度近视位点(MYPl)。我们研究了来自明尼苏达的一个家族... 详细信息

目的：流行性肌痛性眼病(BED)包括X-连锁高度近视，高度散光，视神经发育不良，继发的异常光反应出现的视网膜电流图闪动，以及绿色盲。该病定位于染色体Xq28，并且被最早认为是高度近视位点(MYPl)。我们研究了来自明尼苏达的一个家族，具有相似X连锁的基因显型，并且具有丹麦血统。所有被影响的男性均为红色盲而不是绿色盲。

关键词：高度近视功能异常色盲肌痛视网膜电流图视神经发育不良散光继发男性

Abstracts from the 15th International Myopia Conference

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维普期刊数据库

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Eye and Vision 2016年第1期3卷 211-221页

作者： Alexandra Benavente-Perez Ann Nour Tobin Ansel kathleen Abarr Luying Yan keisha Roden David Troilo Chanyi Lu Miaozhen Pan Min Zheng Jia Qu Xiangtian Zhou Christine F. Wildsoet Fan Lu Jie Chen Jinhua Bao Liang Hu Qinmei Wang Zibing Jin Frances Rucker Stephanie Britton Stephan Hanowsky Molly Spatcher Hui-Ying kuo Ching-Hsiu ke I-Hsin kuo Chien-Chun Peng Han-Yin Sun Ian G. Morgan Jeremy A. Guggenheim Rupal L. Shah Cathy williams Jinglei Yang Peter S. Reinach Sen Zhang Wenfeng Sun Bo Liu Fen Li Xiaoqing Li Aihua Zhao Tianlu Chen Wei Jia Jun Jiang Haoran Wu kazuo Tsubota Hiroko Ozawa Hidemasa Torii Shigemasa Takamizawa Toshihide kurihara kazuno Negishi klaus Graef Daniel Rathbun Frank Schaeffel Ladan Ghodsi William k. Stell Machelle T. Pardue Ranjay Chakraborty Han na Park Curran S. Sidhu P. Michael Iuvone Michael J Collins Nethrajeith Srinvasalu Sally A. McFadden Paul N. Baird Pablo Artal Pauline Cho SW Cheung Pei-Chang Wu Quan V. Hoang Duk C. Lee Erica G. Landis Michael A. Bergen Curran Sidhu Samer Hattar Richard A. Stone Ravi Metlapally Ruiqin Li Qinglin Xu Hong Zhong Chenglin Pan Weizhong Lan Xiaoning Li Ling Chen Zhikuan Yang Scott A. Read Seang-Mei Saw Shi-Jun Weng Xiao-Hua Wu kang-Wei Qian Yun-Yun Li Guo-Zhong Xu Furong Huang Xiong-Li Yang Yong-Mei Zhong Earl L Smith, III Baskar Arumugam Li-Fang Hung Lisa A. Ostrin klaus Trier Monica Jong Brien A. Holden Thomas Chuen Lam Samantha Shan Bing Zuo Dennis Yan-yin Tse Jingfang Bian king-kit Li Quan Liu Chi-ho To Timothy J. Gawne John T. Siegwart, Jr. Alexander H. Ward Thomas T. Norton Yan Zhang Yue Liu Carol Ho Eileen Phan Abraham Hang Emily Eng Christine Wildsoet Department of Biological Sciences SUNY College of Optometry New York NY 10036 USA School of Optometry and Ophthalmology and Eye Hospital Wenzhou Medical University Wenzhou Zhejiang 325027 China Center for Eye Disease & Development School of Optometry & Vision Science Program University of California Berkeley Berkeley CA 94720-2020 USA Wenzhou Medical University Wenzhou Zhejiang 325027 China Biomedical Science and Disease New England College of Optom Boston MA USA School of Optometry Chung Shan Medical University Taichung City 402 Taiwan Institute of Medicine Chung Shan Medical University Taichung City 402 Taiwan Division of Biochemistry and Molecular Biology Research School of Biology Australian National University Canberra Australia State key Laboratory of Ophthalmology and Division of Preventive Ophthalmology Zhongshan Ophthalmic Center Sun Yat-Sen University Guangzhou China School of Optometry & Vision Sciences Cardiff University Cardiff UK School of Social and Community Medicine University of Bristol Bristol UK School of and Eye Hospital Wenzhou Medical University Wenzhou Zhejiang 325027 China State key Laboratory Cultivation Base and key Laboratory of Vision Science Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology and Optometry Wenzhou Zhejiang 325027 People’s Republic of China Shanghai key Laboratory of Diabetes Mellitus and Center for Translational Medicine Shanghai Jiao Tong University Affiliated Sixth People’s Hospital Shanghai 200233 China Eye Hospital of Wenzhou Medical University Wenzhou Zhejiang 325027 China Department of Ophthalmology Keio University School of Medicine Shinjuku-ku Tokyo 160-8582 Japan General Medicine Ichikawa Medical Center Urayasu City Chiba 279-0001 Japan Ophthalmic Research Institute University of Tuebingen 72076 Tuebingen Germany Bernstein Center for Computational Neuroscience Tuebingen 72076 Tuebingen Germany Werner Reichardt Centre for Integrative Neuroscience Otfried-Mueller-Straße 25 Tueb

To assess the peripheral refractive changes that occur when eye growth decelerates in *** We measured peripheral refraction and on-axis vitreous chamber depth on a total of 53 marmosets;36 treated monocularly for 12 weeks 9 hrs/day(26 with-5 D contact lenses,10 with+5 D)and 17 untreated *** the 26 marmosets treated with-5 D,10 wore contact lenses 9 hrs/day without interruptions and were mea-sured at the end of 10 weeks of treatment(T10)and after 4 weeks of recovery(R14).Eight had both contact lenses removed for 30 mins twice/day(mid-morning and mid-afternoon)during the first four weeks of treatment(early interruption group)and eight had the lenses removed during the second four weeks of treatment(late interruption group).The two interruption groups were measured after 4,8 and 12 weeks of treatment only(T4,T8,T12).

关键词： removed treatment untreated

综合性卒中中心医疗质量的度量标准：对脑卒中联盟综合性卒中中心推荐意见的详细随访美国心脏协会／美国卒中协会对医疗专业人员的声明

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维普期刊数据库

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国际脑血管病杂志 2011年第3期19卷 169-194页

作者：何晟(译) 蔡可夫(译) 张元媛(译) 胡旻婧(译) 倪耀辉(译) 芮瑛(译) 柯开富(译) Dana Leifer Dawn M. Bravata J.J. (Buddy) Connors Ⅲ Judith A. Hinchey Edward C. Jauch S. Claibome Johnston Richard Latchaw William kikosky Christopher Ogilvy Adrian I. Qureshi Debbie Summers Gene Y. Sung Linda S. williams Richard Zorowitz 南通大学附属医院神经内科 226001 代表美国心脏协会卒中委员会特别写作组、周围动脉粥样硬化性疾病工作组、心血管外科和麻醉委员会以及心血管护理委员会

背景卒中是一种主要的残疾和死亡原因。脑卒巾联盟提议，建立初级卒中中心（primary stroke center，PSC）和综合性卒中中心（comprehensive stroke center，csc）以分别为需要基本或高级下预的卒中患者提供适当的医疗服务。从2003年开... 详细信息

背景卒中是一种主要的残疾和死亡原因。脑卒巾联盟提议，建立初级卒中中心（primary stroke center，PSC）和综合性卒中中心（comprehensive stroke center，csc）以分别为需要基本或高级下预的卒中患者提供适当的医疗服务。从2003年开始，美国医疗卫生机构认证联合委员会和各州已指定了一些PSC，目前正在考虑CSC的指定工作。为了推进该过程，我们提出了一套CSC应追踪监测医疗质量并促进质量改进的标准和相关数据。方法和结果我们分析了现有指南、综述和其他文献，以识别区分CSC与PSC的主要特征；起草了一套标准和相关数据元素，以评价这些卒中医疗方面的关键部分；然后通过反复修改达成共识。我们提出的这套标准和相关数据元素，涵盖了CSC内缺血性脯血管病、非外伤性蛛网膜下腔出血和腩出血患者专、№医疗的主要方面。结论我们提出这套标准，旨在为CSC的标准化数据采集提供一个框架，以促进当地医疗质量改进，并允许对来自不同CSC的数据进行合并分析。这将有助于将来CSC国家执行标准的制定。

关键词：美国心脏协会科学声明脑血管病脑出血缺血性卒中医疗卫生系统患者医疗大学医疗中心

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质子发射核151Lu的衰变研究

质子发射核151Lu的衰变研究

Search for the doubly heavy baryon Ξ_(bc)^(+)→ decaying to J/ψΞ_(c)^(+)

第十五届全国核结构大会

作者： F.Wang B.Sun Z.Liu C.Scholey S.F.Ashley L.Bianco D.M.Cullen I.J.Cullen I.G.Darby S.Eeckhaudt A.B.Garnsworthyand W.Gelletly M.B.Gomez-Hornillos T.Grahn P.T.Greenlees D.G.Jenkins G.A.Jones P.Jones D.T.Joss R.Julin S.Juutinen S.kettelhut S.khan A.kishada M.Leino M.Niikura M.Nyman R.D.Page J.Pakarinen S.Pietri Z.Podolyak P.Rahkila S.Rigby J.Saren T.Shizuma J.Simpson J.Sorri S.Steer N.J.Thompson J.Uusitalo P.M.Walker S.williams School of Physics and Nuclear Energy Engineering Beihang University Institute of Modern Physics Chinese Academy of Sciences Department of Physics University of Surrey Guildford Surrey GU2 7XH UK Department of Physics University of JyvaskylaJyvaskyla FI-40014 Finland Department of Physics University of Manchester Manchester M13 9PL UK

质子发射核为研究质子滴线附近的核结构提供了重要信息[1]。1981年,在德国GSI的SHIP的速度选择器上,发现了第一个基态质子发射核151Lu。近期又发现151Lu存在一个短寿命的低自旋同核异能态。基于WkB和DWBA理论,简单估计球形核的h11/2和d...

质子发射核为研究质子滴线附近的核结构提供了重要信息[1]。1981年,在德国GSI的SHIP的速度选择器上,发现了第一个基态质子发射核151Lu。近期又发现151Lu存在一个短寿命的低自旋同核异能态。基于WkB和DWBA理论,简单估计球形核的h11/2和d3/2带,可以得到基态为Ep=1223ke V,t1/2=280ms以及同核异能态Ep=1310ke V,t1/2=16μs[2-4]。151Lu激发态的首次跃迁测量是在橡树

关键词：

来源： cnki会议评论

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cnki会议

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中国物理C:英文版 2023年第9期47卷 1-13页

作者： R.Aaij A.S.W.Abdelmotteleb C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi H.Afsharnia C.Agapopoulou C.A.Aidala S.Aiola Z.Ajaltouni S.Akar k.Akiba J.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle S.Amato J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite M.Barbetti R.J.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.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 N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev N.Bondar S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez P.Camargo Magalhaes P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo 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 Centro Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School of Physics State key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany Max-Planck-Institut für kernphysik(MPIk) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universität 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 FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universitàdegli Studi di Padova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma La Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic Physics AmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer Scienc

A first search for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of 4.3(2.8) and 4.1(2.4) standard deviations at masses of 6571 and 6694 MeV/c2, respectively. Upper limits are set on the Ξ+bc baryon production cross-section times the branching fraction relative to that of the B+c→J/ψD+s decay at centre-of-mass energies of 8 and 13 TeV, in the Ξ+bc and in the B+c rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c, respectively. Upper limits are presented as a function of the Ξ+bc mass and lifetime.

关键词： QCD B physics charm physics spectroscopy

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景德镇陶瓷大学国际陶艺工作室作品选登

陶瓷学报 2021年第2期42卷 F0004-F0004页

作者： [冰岛]埃尔瓦·厄恩·克雅尔坦森 [英国]彼得·弗雷泽·比尔德 [澳大利亚]戴安娜·曼努埃拉·威廉姆斯 [德国]杰里特·格林 [葡萄牙]索菲亚·贝卡 [美国]马修·李·凯莱赫 [丹麦]梅特·玛雅·格雷格森不详

Search for the doubly heavy baryons Ω^(0)_(bc) and E^(0)_(bc) decaying to Λ^(+)_(c)π^(-) and E^(+)_(c)π^(-)

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Chinese Physics C 2021年第9期45卷 10-21页

作者： R.Aaij C.Abelian Beteta T.Ackernley B.Adeva M.Adinolfi H.Afshamia C.A.Aidala S.Aiola Z.Ajaltouni S.Aka J.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche G.Alkhazov P.Alvarez Cartelie 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.Beminghoff 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.Bjorn 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.Camiti 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.Crkovska M.Cruz Torres R.Currie C.L.Da Silva E.Dall'Occo J.Dalseno C.D'Ambrosi Centro Brasileiro de Pesquisas Fisicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute of High Energy Physics(IHEP) BeijingChina School of Physics State key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University ofChinese Academy of Sciences BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance Universite Clermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universite Paris-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/FN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany Max-Planck-Institut für kemphysik(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 FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universita degli Studi di Padova Universita e INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma La Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic Physics AmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer ScienceKr

The first search for the doubly heavyΩ^(0)_(bc)baryon and a search for the E^(0)_(bc)baryon 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 fb^(-1).The baryons are reconstructed via their decays to Λ^(+)_(c)π^(-)and E^(+)_(c)π^(-).No significant excess is fbund for invariant masses between 6700 and 7300 MeV/c^(2),in a rapidity range from 2.0 to 4.5 and a transverse momentum range from 2 to 20 MeV/*** limits are set on the ratio of the Ω^(0)_(bc)and E^(0)_(bc)production cross-section times the branching fraction to Λ^(+)_(c)π^(-)(E^(+)_(c)π^(-))relative to that of the Λ^(0)_(b)(E^(0)_(b))baryon,for different lifetime hypotheses,at 95%confidence *** upper limits range from 0.5 x 10^(-4)to 2.5 x 10^(-4)for theΩ^(0)_(bc)→Λ^(+)_(c)π^(-)(E^(0)_(bc)→Λ^(+)_(c)π^(-))decay,and from 1.4x 10^(-3)to 6.9 x 10^(-3)for theΩ^(0)_(bc)→E^(+)_(c)π^(-)(E^(0)_(bc)→E^(+)_(c)π^(-))decay,depending on the considered mass and lifetime of theΩ^(0)_(bc)(E^(0)_(bc))baryon.

关键词： B physics quarkonium spectroscopy heavy quark production