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β-delayed proton decays near the proton drip line

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Science china({1.,Mechanics & Astronomy) 2005年第3期48卷 257-267页

作者： XU Shuwei 1 , LI Zhankui 1 , XIE Yuanxiang 1 , HUANG Wenxue 1 , SHU Nengchuan 2 , CHEN Yongshou 2 , XU Furong 3 , WANG Kun 4 , PAN Qiangyan 1 , WANG Xudong 1 , YU Yong 1 & XING Yebing 1 1. institute of modern physics, Chinese Academy of Sciences, Lanzhou 730000, china 2. Nuclear physics Department, china institute of Atomic Energy, Beijing 102413, china 3. Department of Technical physics, Peking university, Beijing 100871, china 4. shanghai institute for Nuclear research, shanghai 201800, china 1. institute of {1. physics Chinese Academy of Sciences 730000 Lanzhou China 2. Nuclear physics Department China Institute of Atomic Energy 102413 Beijing China 3. Department of Technical physics Peking University 100871 Beijing China 4. shanghai {1. for Nuclear research 201800 Shanghai China

We briefly reviewed the experimental study on a-delayed proton decays near the proton drip line published by our group during the period of 1.96―2004, namely the first observation of the a-delayed proton decays of 9 new nuclides in the rare-earth region and the new measurements of a-delayed proton decays of 5 nuclides in the mass ～90 region near the N = Z line with the aid of the “p-?” coincidence in combination with a He-jet tape transport system. In the meantime some important experimental technique details were supplemented. The experimental results, including the half -lives, spins, parities, deformations and production reaction cross sections for the 1. nuclei were summarized and compared with the current nuclear-model predictions, and then the following points were represented. (1. The experimental half-lives for 85Mo and 92Rh as well as the predicted “waiting point” nuclei 89Ru and 93Pd are 5―1. times longer than the theoretical predictions given by M?ller et al. using a macroscopic-microscopic model. It considerably influences the predictions of the abundances of the nuclides produced in the rp-process. (2) The current-model predictions are not consistent with the experimental assignments of the spins and parities for the proton drip-line nuclei 1.2Ho and 1.8Pm. However, the nuclear potential energy surface (PES) calculated by using a Woods- Saxon-Strutinsky method reproduced the experimental results. (3) The Alice code overestimated the production reaction cross sections of the studied 9 rare-earth nuclei by one order of magnitude or two, while HIVAP code overestimated them by one order of magnitude approximately.

关键词： proton drip line, β-delayed proton decay, He-jet tape transport system, "p-γ" coincidence, spin, parity, deformation, production reaction cross section.

Ultrafast excitation relaxation in light-harvesting complex LH2 from *** 601

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Science china Chemistry 2004年第3期47卷 192-199页

作者： GUO Lijun1.2, LIU Yuan3, LIU Weimin2, GUO Junhua1. XU Chunhe3 & QIAN Shixiong2 1. School of physics and Information Optoelectronics, Henan {1., Kaifeng 475001. china 2. physics Department, fudan university, shanghai 200433, china 3. shanghai institute of Plant Physiology, Chinese Academy of Sciences, shanghai 200032, china 1. School of physics and Information Optoelectronics Henan University 475001 Kaifeng China 2. physics Department Fudan University 200433 Shanghai China 3. shanghai {1. of Plant Physiology Chinese Academy of Sciences 200032 Shanghai China

The energy relaxation and kinetic evolution of transient spectra of bacteriochloro- phylls (BChls) in light-harvesting complex LH2 from Rb. sphaeroides 601.were investigated using femtosecond pump-probe technique. Upon 783 nm excitation, the energy at B800 BChls ex-periences an intramolecular redistribution with 0.35 ps time constant before transferring to B850 BChls. With tuning the excitation wavelength, the dynamical evolution of excited BChls was clearly observed, which indicates an obvious competition between the ground state bleaching and excited state absorption (ESA) of BChls involved and an isosbestic point near 81. nm, and also demonstrates that from the lower electronic excited state of B800 BChls to the higher exci-tonic state of B850 BChls is an efficient routine for energy transfer. The excitation energy in higher excitonic states of B850 BChls relaxes rapidly to the next lowest excitonic state by inter-conversion, delocalization to adjacent molecular, populating the lowest excitonic state and the change of molecular conformation.

关键词： photosynthesis, light-harvesting complex, energy transfer, ultrafast, dynamics, purple bacteria.

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水下爆炸冲击伤的伤情等级划分

水动力学研究与进展（A辑） 2004年第3期19卷 270-274页

作者：李光华蔺世龙刘景昌李斌陶明德复旦大学力学与工程科学系上海200433 中国人民解放军海军医学研究所上海200433

　本文主要讨论的是水下爆炸冲击伤的伤情等级划分问题。水下爆炸的研究已经近一个世纪了,但是国内进行的研究近年来才开始。我们进行了水下爆炸实验,并对水下爆炸压力波进行了分析,应用一些经验公式和修正公式对实验数据进行处理。由... 详细信息

　本文主要讨论的是水下爆炸冲击伤的伤情等级划分问题。水下爆炸的研究已经近一个世纪了,但是国内进行的研究近年来才开始。我们进行了水下爆炸实验,并对水下爆炸压力波进行了分析,应用一些经验公式和修正公式对实验数据进行处理。由于水下爆炸中影响动物伤情的参数繁多,我们经过分析后,发现将冲量和能流密度作为两个主要因素来考虑是合适的,并由此得出合理的伤情等级划分方法。

关键词：水下爆炸爆炸冲击伤冲击波爆炸生理学能流密度

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冠心病患者劳宫穴红外辐射光谱研究

上海中医药杂志 2004年第4期38卷 52-53页

作者：刘汉平沈雪勇邓海平魏建子周钰赵玲丁光宏黄志明褚君浩上海中医药大学上海201203 复旦大学力学与生物工程学系上海200433 中国科学院上海技术物理研究所上海200083

采用自制高灵敏度PHE2 0 1.表红外光谱仪检测 4 7名健康成年人和 5 1.冠心病患者左侧劳宫穴红外辐射光谱。结果 :劳宫穴红外辐射强度个体差异较大 ,但光谱形态相似 ;在 1.5～6 5 μm、1. 9～ 1. 7μm、1. 5 μm、和 1. 3～ 1. 9μ... 详细信息

采用自制高灵敏度PHE2 0 1.表红外光谱仪检测 4 7名健康成年人和 5 1.冠心病患者左侧劳宫穴红外辐射光谱。结果 :劳宫穴红外辐射强度个体差异较大 ,但光谱形态相似 ;在 1.5～6 5 μm、1. 9～ 1. 7μm、1. 5 μm、和 1. 3～ 1. 9μm共 4 0个检测波长处 ,正常人和冠心病患者左侧劳宫穴红外辐射强度有显著性差异。

关键词：穴位冠心病红外光谱

Search for hidden-charm tetraquark with strangeness in e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.

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Chinese physics C 2023年第3期47卷 1-14页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi E.Bianco 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 常劲帆常万玲车国荣 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 S.K.Choi 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 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 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 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性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤蒋沛成姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson S.Kabana N.Kalantar-Nayestanaki 康晓琳康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz 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 雷天天雷祚弘 H.Leithoff M.Lellmann T.Lenz 李聪李翠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李彦谷李振轩李紫源梁畅梁浩梁昊梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limphirat 林创新林德旭 T.Lin 刘北江刘成刘春秀 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卢泽辉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 裴宇鹏 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 institute of High Energy {1. Beijing 100049China Beihang university Beijing 100191China Beijing institute of PetrochemicalTechnology Beijing 102617China Bochum Ruhr-university D-44780 BochumGermany Carnegie Mellon university PittsburghPennsylvania15213USA Central china Normal {1. Wuhan 430079China Central South university Changsha 410083China china Center of AdvancedScience and Technology Beijing 100190China china {1. of Geosciences Wuhan 430074China COMSATS university Islamabad LahoreCampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan {1. Shanghai 200433China G.I.Budker institute of Nuclear{1. SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany GuangxiNormal 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 Normaluniversity 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 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 institute of {1. physics Lanzhou 730000People's Republic of China institute of {1. and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DAricaChile Jilin Univers

We report a search for a heavier partner of the recently observed Z_(cs)(3985)^(-) state,denoted as Z_(cs)^('-),in the process e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.,based on e^(*)e^(-)collision data collected at the center-of-mass energies of √s=4.661.4.682 and 4.699 GeV with the BESIII *** Z_(cs)^('-) is of interest as it is expected to be a candidate for a hidden-charm and open-strange tetraquark.A partial-reconstruction technique is used to isolate K^(+)recoil-mass spectra,which are probed for a potential contribution from Z_(cs)^('-)→D_(s)^(∗−) D^(∗0 )+ *** find an excess of Z_(cs)^('-)→D_(s)^(*-)-D^(*0)(c.c.)candidates with a significance of 2.1.,after considering systematic uncertainties,at a mass of(41.3.5±0.7_(sat)±4.7_(syst.))MeV/c^(2).As the data set is limited in size,the upper limits are evaluated at the 90%confidence level on the product of the Born cross sections(σ^(Borm))and the branching fraction(B)of Z_(cs)^('-)→D_(s)^(*-)-D^(*0),under different assumptions of the Z_(cs)^('-) mass from 4.1.0 to 4.1.0 MeV and of the width from 1. to 50 MeV at the three center-of-mass *** upper limits of σ^(Born).B are found to be at the level of O(1.pb at each *** data samples are needed to confirm the Z_(cs)^('-) state and clarify its nature in the coming years.

关键词： electron-positron collision BESIl hadron spectroscopy tetraquark