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Observation of a p mass threshold enhancement in ψ′→π+π-J/ψ(J/ψ→γp) decay

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Chinese Physics C 2010年第4期34卷 421-426页

作者：麦迪娜 m. N. Achasov 安磊安琪安正华白景芝班勇 N. Berger 边渐鸣 I. Boyko R. A. Briere V. Bytev 蔡啸曹国富曹学香常劲帆 G. Chelkov 陈刚陈和生陈江川陈丽平陈玛丽陈鹏陈申见陈元柏初元萍 D. Cronin-Hennessy 代洪亮代建平 D. Dedovich 邓子艳 I. Denysenko m. Destefanis 丁勇董燎原董明义杜书先段麦英方建封常青傅成栋傅金林高原宁耿聪 K. Goetzen 龚文煊 m. Greco S. Grishin 顾运厅郭爱强郭立波郭玉萍韩少卿 F. A. harris 何康林何苗何振亚衡月昆侯治龙胡海明胡继峰胡涛胡小为黄彬黄光明黄金书黄性涛黄燕萍姬长胜纪全季晓斌季筱璐贾卢魁姜丽丽江晓山焦健斌金大鹏金山 S. Komamiya W. Kuehn S. Lange 梁干庄李澄李翠李德民李飞李刚李海波李捷李家才李蕾李陆李秋菊李卫东李卫国李晓玲李小男李学潜李秀荣李玉晓李志兵梁昊梁泰然 Y.T. Liang 梁勇飞廖广睿廖小涛刘北江刘春秀刘春燕刘福虎刘芳刘峰刘冠川刘虎刘宏邦刘怀民刘红薇刘健刘觉平刘坤刘魁勇刘树彬刘晓海刘玉斌刘艳芳刘衍文刘勇刘振安鲁公儒吕军光吕绮雯吕晓睿卢云鹏罗成林罗民兴Zhejiang University 罗涛罗小兰马长利马凤才马海龙马秋梅马想马骁妍 m. maggiora 冒亚军毛泽普闵建莫晓虎 N. Yu. muchnoi Y. Nefedov 宁飞鹏 S. L. Olsen 欧阳群 m. Pelizaeus K. Peters 平加伦平荣刚 R. Poling 潘振声祁鸣钱森乔从丰邱进发荣刚阮向东 Sarantsev 邵明沈肖雁盛华义 S. Sonoda S. Spataro B. Spruck 孙德辉孙功星孙俊峰孙胜森孙晓东孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓唐秀福田浩来 D. Toth G. S. Varner 万霞王博群王纪科王科王亮亮王灵淑王平王佩良王强王思广王晓东汪晓莲王雅迪王贻芳王亚乾王铮王志刚王至勇魏代会文硕频 U. Wiedner 伍灵慧吴宁吴元明吴智肖振军谢宇广许国发徐光明徐昊徐敏徐明徐新平徐晔许咨宗薛镇严亮鄢文标颜永红杨洪勋杨明杨璞杨世明杨永栩叶梅叶铭汉俞伯祥喻纯旭俞玲苑长征袁野曾云张丙新张炳云张长春张达华张宏浩章红宇张家文张建勇张景芝张雷张书华张学尧张瑶张银鸿张子平赵川赵海升赵家伟赵京伟赵雷赵玲赵明刚赵强赵书俊赵祥虎赵豫斌赵政国 A. Zhemchugov 郑波郑建平郑阳恒郑志鹏钟彬周莉周中良朱程朱凯朱科军朱启明朱兴旺朱永生朱自安庄建邹冰松邹佳恒左嘉旭 P. Zweber Institute of High Energy Physics CAS G.I. Budker Institute of Nuclear Physics SB RAS (BINP) Guangxi University University of Science and Technology of China Peking University Joint Institute for Nuclear Research Carnegie mellon University the moscow Institute of Physics and Technology Nanjing University University of minnesota the Bogolyubov Institute for Theoretical Physics University of Turin and INFN Liaoning University Zhengzhou University Shanxi University Tsinghua University GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Nankai University Nanjing Normal University University of Hawaii Graduate University of Chinese Academy of Sciences Huazhong Normal University Henan Normal University Shandong University The University of Tokyo Universitaet Giessen The University of Hong Kong Sun Yat-Sen University Sichuan University Guangxi Normal University The Chinese University of Hong Kong Wuhan University Seoul National University Bochum Ruhr-University China Center of Advanced Science and Technology currently at Suzhou University Hunan University

The decay channel ψ′→ π 〉＋π^-J/ψ（J/ψ 〉 γp^-p） is studied using a sample of 1.06 × 10^8 ψ′ events collected by the BESIII experiment at BEPCII. A strong enhancement at threshold is observed in the p^-p invariant mass spectrum. The enhancement can be fitted with an S-wave Breit-Wigner resonance function with a resulting peak mass of m = 1861-13^＋6 （stat）-26^＋7 （syst） meV/c^2 and a narrow width that is Г 〈 38 meV/c^2 at the 90% confidence level. These results are consistent with published BESII results. These mass and width values do not match with well established mesons.

关键词： p^-p threshold enhancement

轨道交通的产学研新模式——麻省理工学院/波多黎各地铁项目简介

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城市交通 2007年第3期5卷 8-13页

作者： Jose m.Izquierdo-Encarnaci Lydia Elena mercado Benjamn Colucci Frederick P.Salvucci andNigel H.m.Wilson 郭湛波多黎各公共事务部圣胡安00940 DmJm.harris公司圣胡安00918 波多黎各大学土木工程系玛雅贯兹00681 麻省理工学院麻省剑桥02139

波多黎各于20世纪90年代初才开始发展城市轨道交通,但因为善于利用后发优势,通过产学研的结合,充分考虑了地铁工程的多学科特性,走出一条有波多黎各特色的道路,成为美国和国际公共交通领域技术交流的典范。主要介绍了其产学研的项目,它... 详细信息

波多黎各于20世纪90年代初才开始发展城市轨道交通,但因为善于利用后发优势,通过产学研的结合,充分考虑了地铁工程的多学科特性,走出一条有波多黎各特色的道路,成为美国和国际公共交通领域技术交流的典范。主要介绍了其产学研的项目,它由负责地铁项目的政府主管部门、波多黎各大学和美国麻省理工学院共同组织实施,历经地铁前期规划、修建、调试、运营和政策分析等全部过程,共13年的时间。这种方式提高了工程的质量和施工效率,推动当地轨道交通辅助产业的发展,加快了新技术的应用及研究,培养了一大批轨道交通的规划运营人才,为拉丁美洲城市轨道交通建设提供了一个新模式。波多黎各的经验对于我国当前的城市轨道交通建设同样具有借鉴意义。

关键词：波多黎各轨道交通产学研

髋关节假体周围感染一期翻修的10年随访结果

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临床骨科杂志 2019年第2期22卷 238-238页

作者： Zahar A Klaber I Gerken A m 胡孔足(摘译) 不详

作者回顾性分析了85例髋关节假体周围感染一期翻修的10~11年随访结果,采用带抗生素骨水泥假体翻修。结果发现,10年无感染生存率为94%,无手术干预生存率为75.9%。harris评分从43分提高到75分。一期翻修术后再次翻修的指针主要是关节不稳... 详细信息

作者回顾性分析了85例髋关节假体周围感染一期翻修的10~11年随访结果,采用带抗生素骨水泥假体翻修。结果发现,10年无感染生存率为94%,无手术干预生存率为75.9%。harris评分从43分提高到75分。一期翻修术后再次翻修的指针主要是关节不稳定(10/20)。因此作者认为,髋关节假体周围感染一期翻修疗效可靠。

关键词：髋关节假体随访结果翻修术感染周围 harris评分抗生素骨水泥关节不稳定

髋关节融合后全髋置换术:长期临床与影像结果

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临床骨科杂志 2021年第3期24卷 415-415页

作者： GRAPPIOLO G BRUNO C F LOPPINI m 胡孔足(摘译) 不详

作者分析了57例(59髋)髋关节融合后全髋置换术患者资料。平均随访13年,harris评分和VAS评分分别从术前(46.0±16.7)分、(4.4±1.5)分提高到(80.8±18.8)分、(2.1±1.4)分。23例有Trendelenburg步态,29例发现异位骨化。总共29.8%出现并... 详细信息

作者分析了57例(59髋)髋关节融合后全髋置换术患者资料。平均随访13年,harris评分和VAS评分分别从术前(46.0±16.7)分、(4.4±1.5)分提高到(80.8±18.8)分、(2.1±1.4)分。23例有Trendelenburg步态,29例发现异位骨化。总共29.8%出现并发症。吸烟和类风湿性关节炎是Trendelenburg步态的危险因素。假体生存率:5年为98.7%,10年为92.4%,15年为82.1%,20~25年为73.4%。作者认为,髋关节融合前手术是假体失效的危险因素。

关键词：全髋置换术 harris评分髋关节融合类风湿性关节炎异位骨化假体失效危险因素步态

Observation of e^(+)e^(-)→pppñπ-+c.c.

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Chinese Physics C 2023年第4期47卷 16-25页

作者：麦迪娜 m.N.Achasov P.Adlarson m.Albrecht R.Aliberti A.Amoroso 安美儒安琪白旭红白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger m.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko m.Destefanis F.De mori 丁勇董静董燎原董明义董翔杜书先 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer m.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.m.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl m.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩婷婷韩文颖郝喜庆 F.A.harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold m.Himmelreich 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl m.Irshad J.Jackson S.Jaeger S.Janchiv 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜侯兵姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert 柯百谦 I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff m.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.Li J.Q.Li 李静舒李井文李科 L.J.Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limphirat 林创新林德旭 T.Lin 刘北江刘春秀 D.Liu 刘福虎刘芳刘峰 G.m.Liu H.Liu, 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.maas m.maggiora S.maldaner S.malde Q.A.malik A.mangoni 冒亚军毛泽普 S.marcello 孟召霞 J.G.messchendorp G.mezzadri H.miao 闵天觉 R.E.mitchell 莫晓虎 N.Yu.muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak m.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F.Redmer 任旷洁 A.Rivetti V.Rodin m.Rolo 荣刚 Ch.Ros Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany 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 COmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia 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 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 I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly Institute of modern Physics Lanzhou 730000China B Ulaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou University Lanzhou 730000China Liaoning Normal Unive

Using data taken at 29 center-of-mass energies between 4.16 and 4.70 GeV with the BESⅢdetector at the Beijing Electron Positron Collider corresponding to a total integrated luminosity of approximately 18.8 fb^(-1),the process e^(+)e^(-)→pppñπ+*** observed for the first time with a statistical significance of 11.5σ.The average Born cross sections in the energy ranges of(4.160,4.380)GeV,(4.400,4.600)GeV and(4.610,4.700)GeV are measured to be(21.5±5.7±1.2)fb,(46.3±10.6±2.5)fb and(59.0±9.4±3.2)fb,respectively,where the first uncertainties are statistical and the second are *** line shapes of the pñ and ppπ^(-)invariant mass spectra are consistent with phase space distributions,indicating that no hexaquark or di-baryon state is observed.

关键词： multi-baryon channel hexaquark di-baryon states cross section measurement

母体特征联合宫颈长度在预测双胎妊娠自发早产中的作用

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世界核心医学期刊文摘（妇产科学分册） 2006年第9期2卷 22-22页

作者： To m.S. Fonseca E.B. molina F.S. K.H.Nicolaides 柳蕴 harris Birthright Research Centre for Fetal medicine King's College Hospital Medical School LondonUnited Kingdom Dr

Objective: The purpose of this study was to examine the value of combining maternal characteristics and measurement of cervical length at 22 to 24 weeks in the prediction of spontaneous early preterm delivery. Study design: Cervical length was measured by transvaginal sonography at 22 to 24 weeks in 1163 twin pregnancies attending for routine antenatal care. Logistic regression analysis was used to examine the effect of maternal demographic characteristics and cervical length on the risk of spontaneous early preterm delivery. Results: The rate of spontaneous delivery before 32 weeks was 6.5% . The rate of early delivery was inversely related to cervical length,and for a false-positive rate of 10% , the detection rate of early delivery was 65.3% . The respective detection rate for maternal characteristics and obstetric history was 26.4% . Logistic regression analysis demonstrated that the only significant independent predictor of spontaneous early delivery was cervical length. Conclusion: In twins, the prediction of spontaneous early preterm delivery by measurement of cervical length at 22 to 24 weeks is not improved by maternal characteristics.

关键词：宫颈长度预测价值双胎妊娠早产率自发母体 logistic回归分析 Logistic回归分析