基于Pluto事件产生器对兰州强子物理谱仪上主要反应道的模拟研究

郑川; 徐瑚珊; 欧阳珍; 袁小华; 王建松

doi:10.11804/NuclPhysRev.28.02.162

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基于Pluto事件产生器对兰州强子物理谱仪上主要反应道的模拟研究

郑川, 徐瑚珊, 欧阳珍, 袁小华, 王建松

文章导航 > 原子核物理评论 > 2011 > 28(2): 162-167

郑川, 徐瑚珊, 欧阳珍, 袁小华, 王建松. 基于Pluto事件产生器对兰州强子物理谱仪上主要反应道的模拟研究[J]. 原子核物理评论, 2011, 28(2): 162-167. doi: 10.11804/NuclPhysRev.28.02.162

引用本文:

ZHENG Chuan, XU Hu-shan, OUYANG Zhen, YUAN Xiao-hua, WANG Jian-song. Monte Carlo Simulation of Primary Reactions on HPLUS Based on Pluto Event Generator[J]. Nuclear Physics Review, 2011, 28(2): 162-167. doi: 10.11804/NuclPhysRev.28.02.162

Citation:

ZHENG Chuan, XU Hu-shan, OUYANG Zhen, YUAN Xiao-hua, WANG Jian-song. Monte Carlo Simulation of Primary Reactions on HPLUS Based on Pluto Event Generator[J]. Nuclear Physics Review, 2011, 28(2): 162-167. doi: 10.11804/NuclPhysRev.28.02.162

基于Pluto事件产生器对兰州强子物理谱仪上主要反应道的模拟研究

doi: 10.11804/NuclPhysRev.28.02.162

1 中国科学院近代物理研究所, 甘肃兰州 730000; 2 中国科学院研究生院, 北京 100049

Monte Carlo Simulation of Primary Reactions on HPLUS Based on Pluto Event Generator

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

摘要: 为了在 GeV 能区开展核子核子相互作用中强子的产生和衰变的实验研究，将在 HIRFLCSR 主环上建造一台兰州强子物理谱仪（HPLUS）。首先结合 HPLUS 的初步构型阐明了针对不同极角区域的粒子鉴别方法，接着介绍了在蒙特卡罗模拟中使用的 Pluto 事件产生器，并针对 HPLUS上主要的反应道模拟研究了： Pluto 产生的质子质子弹性散射的角分布和实验数据的符合程度；在产生 K 介子的反应道中， HPLUS 前角区对 K 介子的接收度；强子衰变产生光子的最大能量和两个光子的最小夹角随极角区域的变化情况；不同的重建方法对核子激发态质量谱形状的影响。以上研究说明了 Pluto 事件产生器可以满足 HPLUS 模拟的需要。 Hadron Physics Lanzhou Spectrometer (HPLUS) is designed for the study of hadron production and decay from nucleonnucleon interaction in the GeV region. The current formation of HPLUS and the particle identification methods
for three polar angle regions are discussed. The Pluto event generator is applied to simulate the primary reactions on HPLUS， concerning four issues as followed: the agreement on pp elastic scattering angular distribution between Pluto samples and experimental data; the acceptance of charged K mesons in the strangeness production channels for the forward region of HPLUS; the
dependence of the maximum energy of photons and the minimum vertex
angle of two photons on the polar angle; the influence on the mass spectrum of excited states of nucleon with large resonant width from different reconstruction methods. It is proved that the Pluto event generator satisfies the requirements of Monte Carlo simulation for HPLUS.
- 强子物理 /
- 事件产生器 /
- 兰州强子物理谱仪
Abstract: Hadron Physics Lanzhou Spectrometer (HPLUS) is designed for the study of hadron production and decay from nucleonnucleon interaction in the GeV region. The current formation of HPLUS and the particle identification methods
for three polar angle regions are discussed. The Pluto event generator is applied to simulate the primary reactions on HPLUS， concerning four issues as followed: the agreement on pp elastic scattering angular distribution between Pluto samples and experimental data; the acceptance of charged K mesons in the strangeness production channels for the forward region of HPLUS; the
dependence of the maximum energy of photons and the minimum vertex
angle of two photons on the polar angle; the influence on the mass spectrum of excited states of nucleon with large resonant width from different reconstruction methods. It is proved that the Pluto event generator satisfies the requirements of Monte Carlo simulation for HPLUS.
- hadron physics /
- event generator /
- hadron physics lanzhou spectrometer

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基于Pluto事件产生器对兰州强子物理谱仪上主要反应道的模拟研究

doi: 10.11804/NuclPhysRev.28.02.162

1 中国科学院近代物理研究所, 甘肃兰州 730000; 2 中国科学院研究生院, 北京 100049

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2011-06-20

关键词:

强子物理 /

事件产生器 /

兰州强子物理谱仪

摘要: 为了在 GeV 能区开展核子核子相互作用中强子的产生和衰变的实验研究，将在 HIRFLCSR 主环上建造一台兰州强子物理谱仪（HPLUS）。首先结合 HPLUS 的初步构型阐明了针对不同极角区域的粒子鉴别方法，接着介绍了在蒙特卡罗模拟中使用的 Pluto 事件产生器，并针对 HPLUS上主要的反应道模拟研究了： Pluto 产生的质子质子弹性散射的角分布和实验数据的符合程度；在产生 K 介子的反应道中， HPLUS 前角区对 K 介子的接收度；强子衰变产生光子的最大能量和两个光子的最小夹角随极角区域的变化情况；不同的重建方法对核子激发态质量谱形状的影响。以上研究说明了 Pluto 事件产生器可以满足 HPLUS 模拟的需要。 Hadron Physics Lanzhou Spectrometer (HPLUS) is designed for the study of hadron production and decay from nucleonnucleon interaction in the GeV region. The current formation of HPLUS and the particle identification methods
for three polar angle regions are discussed. The Pluto event generator is applied to simulate the primary reactions on HPLUS， concerning four issues as followed: the agreement on pp elastic scattering angular distribution between Pluto samples and experimental data; the acceptance of charged K mesons in the strangeness production channels for the forward region of HPLUS; the
dependence of the maximum energy of photons and the minimum vertex
angle of two photons on the polar angle; the influence on the mass spectrum of excited states of nucleon with large resonant width from different reconstruction methods. It is proved that the Pluto event generator satisfies the requirements of Monte Carlo simulation for HPLUS.