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国家自然科学基金(10491303): 作品数：37被引量：10H指数：2; 导出分析报告; 相关作者：苑长征莫晓虎平荣刚张学尧何康林更多>>; 相关机构：中国科学院山东大学北京大学中国科学技术大学更多>>; 相关期刊：《物理》《核电子学与探测技术》《Chinese Physics C》更多>>; 相关主题：BES英文DECAYΠBEPC更多>>; 相关领域：理学自动化与计算机技术轻工技术与工程天文地球更多>>

Study of radiation background at the north crossing point of the BEPC in collision mode被引量：1: 《Chinese Physics C》2011年第7期642-655,共14页莫晓虎张建勇张清江 Achasov Mikhail 蔡啸傅成栋 Harris Fred 刘倩 Muchnoi Nikolay 秦庆屈化民王贻芳徐金强张天保; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825200, 2009CB825203,2009CB825206);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); Understanding the radiation background at the north crossing point （NCP） in the tunnel of BEPCII is crucial for the performance safety of the High Purity Germanium （HPGe） detector, and in turn of great significanc...; 关键词：radiation dose shielding thickness photon and neutron background NaI（T1） detector

Effects due to a Pu-C source on a HPGe detector and the corresponding neutron shielding被引量：1: 《Chinese Physics C》2011年第7期660-667,共8页张建勇傅成栋莫晓虎张子良李道武王宝义; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524);Instrument Developing Project of Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825200, 2009CB825203,2009CB825206);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); A gamma spectrum of a Pu-C source is measured using a p-type HPGe detector, whose three peaks （full energy, single-escape and double-escape peak） can be used as a calibration source for the beam energy measurement s...; 关键词：Pu-C source HPGe detector neutron shielding

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

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

Calibration of RPC-based muon detector at BESⅢ: 《Chinese Physics C》2010年第3期344-353,共10页谢宇广李卫东梁羽铁尤郑昀冒亚军张家文边渐鸣曹国富曹学香陈申见邓子艳傅成栋高原宁何康林何苗花春飞黄彬黄性涛季晓斌李飞李海波刘春秀刘怀民刘秋光刘锁刘英杰马秋梅马想毛泽普莫晓虎潘明华庞彩莹平荣刚秦亚红邱进发孙胜森孙永昭王纪科王亮亮文硕频伍灵慧徐敏严亮苑长征袁野张炳云张长春张建勇张学尧张瑶郑阳恒朱科军朱永生朱志丽邹佳恒; Supported by CAS Knowledge Innovation Project(U-602, U-34);National Natural Science Foundation of China (10491300,10491303, 10605030, 10835001, 10821063);100 Talents Program of CAS (U-25 and U-54);National Basic Research Program of China (2009CB825208); The calibration algorithm for RPC-based muon detector at BESIII has been developed. The calibration method, calibration error and algorithm performance are studied. The primary results of efficiency and noise at layer...; 关键词：CALIBRATION RPC BESIII muon detector EFFICIENCY noise

Lagrange multiplier method used in BESⅢ kinematic fitting: 《Chinese Physics C》2010年第2期204-209,共6页严亮何康林李卫国边渐鸣傅成栋黄彬刘颖吕绮雯宁飞鹏孙胜森徐敏张建勇朱永生; Supported by National Natural Science Foundation of China (10491300,10491303,10735080);Research and Development Project of Important Scientific Equipment of CAS (H7292330S7); In this paper, the kinematic fitting with the Lagrange multiplier method has been studied for BESⅢ experiment. First we introduce the Lagrange multiplier method and implement kinematic constraints. Then we present th...; 关键词：BESⅢ kinematic fitting Lagrange multiplier

Absolute photon energy calibration for the BESⅢ EMC: 《Chinese Physics C》2010年第1期72-77,共6页边渐鸣何康林李卫国胡涛傅成栋黄彬刘颖吕绮雯宁飞鹏宋文博孙胜森徐敏言杰严亮; Supported by CAS Knowledge Innovation Project (U-602, U-34);National Natural Science Foundation of China (10491300,10491303, 10605030) ;100 Talents Program of CAS (U-25 and U-54); The absolute energy calibration with photons from π0＇s for the BESⅢ EMC is discussed. Using 3 million hadronic events, the preliminary results are presented. Precision of about 1% in the photon energy measurement i...; 关键词：electromagnetic calorimeter absolute energy calibration π0 decay.

Measurement of radiation dose at the north interaction point of BEPC Ⅱ: 《Chinese Physics C》2009年第10期914-921,共8页莫晓虎张建勇张天保张清江 Achasov Mikhail 傅成栋 Muchnoi Nikolay 秦庆屈化民王贻芳吴靖民徐金强俞伯祥; Supported by National Natural Science Foundation of China (10491303, 10775412, 10825524);Instrument Developing Projectof Chinese Academy of Sciences (YZ200713);Major State Basic Research Development Program (2009CB825206);KnowledgeInnovation Project of Chinese Academy of Sciences (KJCX2-YW-N29); The technique details for measuring radiation dose are expounded. The results of gamma and neutron radiation levels are presented and the corresponding radiation shielding is discussed based on the simplified estimati...; 关键词：radiation dose shielding thickness photon background NaI（T1） detector

BESⅢ track fitting algorithm被引量：2: 《Chinese Physics C》2009年第10期870-879,共10页王纪科毛泽普边渐鸣曹国富曹学香陈申见邓子艳傅成栋高原宁何康林何苗花春飞黄彬黄性涛季晓斌李飞李海波李卫东梁羽铁刘春秀刘怀民刘锁刘英杰马秋梅马想冒亚军莫晓虎潘明华庞彩莹平荣刚秦亚红邱进发孙胜森孙永昭王亮亮文硕频伍灵慧谢宇广徐敏严亮尤郑昀苑长征袁野张炳云张长春张建勇张学尧张瑶郑阳恒朱科军朱永生朱志丽邹佳恒; Supported by CAS Knowledge Innovation Project(U-602, U-34);National Natural Science Foundation of China (10491300,10491303, 10605030);100 Talents Program of CAS (U-25, U-54); A track fitting algorithm based on the Kalman filter method has been developed for BESⅢ of BEPCⅡ. The effects of multiple scattering and energy loss when the charged particles go through the detector, non-uniformity...; 关键词：BESⅢ main drift chamber track fitting algorithm Kalman filter method

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