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国家自然科学基金(10935008): 作品数：11被引量：0H指数：0; 导出分析报告; 相关作者：张子平郭晗苑长征李科刘超更多>>; 相关机构：中国科学技术大学中国科学院山东大学更多>>; 相关期刊：《物理》《Chinese Physics C》《中国科学技术大学学报》更多>>; 相关主题：ΠDECAYSBESBELLE英文更多>>; 相关领域：理学天文地球更多>>

Evidence for resonant structures in e^+e^-→π^+π^-h_c: 《Chinese Physics C》2014年第4期1-4,共4页苑长征; Supported by Ministry of Science and Technology of China(2009CB825203);National Natural Science Foundation of China(NSFC)(10825524,10935008,11235011); ： The cross sections of e＋e-→π＋π-hc at center-of-mass energies from 3.90 to 4.42 GeV were measured by the BESIII and the CLEO-c experiments. Resonant structures are evident in the e＋e-→π＋π-hc line shape. Th...; 关键词：CHARMONIUM chramoniumlike states e＋e- annihilation EXOTICS HYBRIDS

用e^+e^-→D*^+D*^-检验一个微扰QCD预言(英文): 《中国科学技术大学学报》2014年第3期214-216,共3页郭晗张子平; Supported by National Natural Science Foundation of China(10935008); 计算了e+e-→D*+D*-过程的微分截面,以D*介子的电磁形状因子表示.代入微扰QCD预言的电磁形状因子比值,得到的角分布与中心系能量为10.58 GeV的实验测量不一致.; 关键词：D＊介子电磁形状因子微扰QCD

BESⅢ实验首次观测到Y(4260)→γX(3872)辐射跃迁: 《物理》2014年第3期199-201,共3页刘智青李科苑长征黄性涛; 国家重点基础研究发展计划(批准号:2009CB825203);国家自然科学基金(批准号:11235011,10935008,10825524,10979033);教育部世纪优秀人才支持计划(批准号:NCET-13-0342)资助项目; 随着我国北京正负电子对撞机（BEPCII）上的北京谱仪（BESIII）实验和日本高能加速器研究机构（KEK）的Belle实验发现带电奇特强子态ZC（3900）[1]，研究奇特态粒子成为粒子物理学研究领域中当前最热门的课题之一。究竟什么是奇特态粒...; 关键词：实验发现辐射跃迁北京正负电子对撞机粒子物理学观测高能加速器研究机构北京谱仪

A scenario for high accuracy τ mass measurement at BEPC-Ⅱ: 《Chinese Physics C》2012年第7期573-577,共5页M. N. Achasov V. E. Blinov 蔡啸傅成栋 F. A. Harris Q. Liu 莫晓虎 N. Yu. Muchnoi I. B. Nikolaev 秦庆 A. G. Shamov K. Yu. Todyshev 王贻芳张建勇; Supported by National Natural Science Foundation of China (10775412, 10825524, 10935008);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825203, 2009CB825206);the Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29);RFBR 08-02-00328-a, 08-02-00251-a, 08-02-92200-NSFC-a;SB RAS joint project No. 32 for fundamental researcher with CAS;Department of Energy (DE-FG02-04ER41291) (U. Hawaii); Scenarios for the τ mass measurement at the upgraded Beijing Electron-Positron Collider （BEPC- II ） are studied. A nested minimization procedure is used to optimize the data taking plan. It is found that by using f...; 关键词：τ mass scan optimization uncertainty

Branching fraction of the isospin violating process φ→ωπ^0: 《Chinese Physics C》2011年第6期543-544,共2页苑长征莫晓虎王平; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524, 10935008);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825206);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); We have examined the parametrization of the e^＋e^- → ωπ0 cross section in the vicinity of the φ resonance and the extraction of the branching fraction of the isospin violating process φ → ωπ0 from experimenta...; 关键词：multiple solution φ resonance branching ratio

Fast computation of observed cross section for ψ′ → PP decays: 《Chinese Physics C》2011年第5期411-418,共8页王博群莫晓虎王平班勇; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524, 10835001, 10935008);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825200, 2009CB825206);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); It has been conjectured that the relative phase between strong and electromagnetic amplitudes is universally -90° in charmonium decays. ψ′ decaying into a pseudoscalar pair provides a possibility to test this conje...; 关键词：cross section narrow resonance pseudoscalar pair e ＋ e - collider

Belle实验中神经元网络和Fisher判别方法应用于压制连续过程本底的比较(英文): 《中国科学技术大学学报》2011年第1期62-65,共4页刘超张子平; Supported by NSFC(10935008,10875115);the Doctoral Program of Chinese Education Ministry(20070358060); 在Belle实验B±→K±ω道的物理分析中,对神经元网络法和Fisher判别法在压制连续过程本底应用中的性能进行了比较研究.应用神经元网络法可以获得对BB信号事例42.3%的选择效率和99.2%的连续过程本底排除水平;应用Fisher判别法可以获得5...; 关键词：神经元网络法 Fisher判别法 Belle实验 B介子衰变

Kinematics of τ two-body decay near τ threshold at BESⅢ: 《Chinese Physics C》2010年第11期1671-1679,共9页莫晓虎; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524, 10935008);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825206);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); The kinematic properties of two-body decay near τ threshold are studied according to the special capacity of the BEPC accelerator and the BESⅢ detector.Explicitly presented are the transformations of energy and mome...; 关键词：KINEMATICS τ threshold energy distribution energy spread

Combined fit to BABAR and Belle Data on e^+e^- →φπ^+π^- and φf_0(980): 《Chinese Physics C》2010年第8期1045-1051,共7页沈成平苑长征; Supported by Department of Energy,(DE-FG02-04ER41291 (U Hawaii));National Natural Science Foundation of China(10825524,10935008);Major State Basic Research Development Program (2009CB825203); A combined fit is performed to the BABAR and Belle measurements of the e^＋e^- →φπ^＋π^- and φf0（980） cross sections for center-of-mass energy between threshold and 3.0 GeV. The resonance parameters of the φ（...; 关键词：Y（2175） φ（1680） combined fit

XYZ particles at Belle: 《Chinese Physics C》2010年第6期615-620,共6页沈成平; Supported by National Natural Science Foundation of China (10825524,10935008);Department of Energy (DE-FG02-04ER41291) (U Hawaii); In this paper, I review recent progress in the study of the XYZ particles at Belle. I only focus on studies with charmonium and one or more light mesons in the final states. This covers the X（3872）, X（3915）, Y（4...; 关键词：X（3872） X（3915） Y（4140） X（4350） charged Z

国家自然科学基金(10935008)