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Non-perturbative Aspects of QCD and Parameterized Quark Propagator

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Communications in Theoretical Physics 2008年第1期49卷 181-188页

作者： ZHOU Li-Juan GU Yun-Ting MA Wei-Xing MENG Cheng-Ju pan ji-huan Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou545006 China Department of Physics Guangxi University Nanning 530004 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China Department of Physics Hechi College Yizhou 546300 Guangxi China

Based on the Global Color Symmetry Model, the non-perturbative Q, CD vacuum is investigated in the parameterized fully dressed quark propagator. Our theoretical predictions for various quantities characterized the QCD vacuum are in agreement with those predicted by many other phenomenologieal QCD inspired models. The successful predictions clearly indicate the extensive validity of our parameterized quark propagator used here. A detailed discussion on the arbitrariness in determining the integration cut-off parameter ofμ in calculating QCD vacuum condensates and a good method, which avoided the dependence of calculating results on the cut-off parameter is also strongly recommended to readers.

关键词： global color symmetry model parameterized quark propagator non-perturbative QCD vacuumand vacuum condensate

Photoproduction of Vector Meson φ off Deuteron in QCD Inspired Model

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Communications in Theoretical Physics 2009年第8期52卷 295-301页

作者： MENG Cheng-Ju pan ji-huan PENG jin-Song MA Wei-Xing YUAN Tong-Quan Department of Physics and Electronic Engineering Hechi College Yizhou 546300 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China

Based on the quark-gluon contents of nucleon and strongly believing that the force mediators,Pomeronand its counterpart in the conventional approach of Regge theory,for high energy diffractive process would be the tensorglueball and Odderon respectively,we discuss photo-production of vector meson φ off the deuteron at energy less than 3GeV in the QCD inspired model in which the quark gluon degrees of freedom and glueball,Odderon exchange are takeninto account.A calculation is performed for γ + D →φ + D,and the theoretical predictions of the differential crosssection dσ^(γD)) /dt,are presented and compared with available experimental *** QCD inspired model reproducesdata quite well in the whole range of the experimental measurements up to |t| ■0.4 *** results can be used toextract γn→φn data,which cannot be measured in experiment.

关键词： photoproduction of vector meson QCD generalized vector meson dominance model QCD

Tensor Susceptibilities of QCD Vacuum and Parameterized Quark Propagator

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Communications in Theoretical Physics 2008年第3期49卷 717-722页

作者： ZHOU Li-Juan MENG Cheng-Ju pan ji-huan LIU Bao-Rong MA Wei-Xing Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou 545006 China Department of Physics Hechi College Yizhou 546300 China Department of Physics Guangxi University Nanning 530004 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China

Based on the parameterized fully dressed quark propagator proposed by us, the tensor susceptibilities of QCD vacuum and quark vacuum condensates are investigated. Our predicted values of the tensor susceptibilities are in agreement with those predicted by many other theoretical models with QCD feature. The results also show that the tensor susceptibility of QCD vacuum strongly depends on flavor of quark but not sensitive to variation of quark vacuum condensates. However, the quark vacuum condensate is very sensitive to the change of cut-off-parameter μ^2 of the integration, that is, it depends on the separation point of perturbative and non-perturbative QCD region. The successful predictions clearly indicate the extensive validity of our parameterized fully dressed quark propagator used here.

关键词： QCD vacuum tensor susceptibilities quark propagator

Gasser-Leutwyler Coefficients of Chiral Lagrangian for Pseudoscalar Goldstone Bosons

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Communications in Theoretical Physics 2006年第1X期46卷 101-108页

作者： ZHOU Li-Juan WU Qing pan ji-huan MENG Cheng-Ju MA Wei-Xing LI Xi-Guo Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou 545006 China Department of Physics Qingdao University Qingdao 266071 China Department of Physics Hechi College Yizhou 546300 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China Institute of Modern Physics the Chinese Academy of Sciences Lanzhou 730000 China

Based on the Dyson-Schwinger equations in raAnbow approximation for quark propagator with an effective gluon propagator, and on the parametrized fully dressed quark propagator proposed by us, the unknown GasserLeutwyler coeiticients of the chiral Lagrangian for pseudoscalar Goldstone bosons, Li, are predicted respectively. The predicted values of Li in the two different ways are not only in reasonable agreement each other but also in agreement with empirical values used widely in literature and the values predicted by many other theoretical models with QCD characteristics. The compatible results of Gasser-Leutwyler coefficients predicted by our parameterized quark propagator, in turn, clearly verify its extensive validity.

关键词： chiral perturbation theory Gasser-Leutwyler coefficient quark propagator Dyson-Schwinger equations

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质点在中心势场V(r)中的运动

河池学院学报 2010年第2期30卷 46-53页

作者：潘继环河池学院物理与电子工程系广西宜州546300

讨论中心势场中有心力为引力的情况下质点的运动,对中心势场中质点的运动状况作了一般分析,给出了质点在有心力场中运动的守恒量、运动方程、轨道方程及其运动的经典特征.

关键词：有心力中心势场有心力场质点运动

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基于多媒体技术整合的大学物理教学改革

湖北成人教育学院学报 2009年第4期15卷 116-117页

作者：潘继环广西河池学院物理与电子工程系广西宜州546300

本文通过对现阶段大学物理教学中存在的问题分析,提出了大学物理教学与多媒体技术优化整合模式,认为既要充分利用多媒体的优势,又要发挥教师的主导作用,以期取得最佳的教学效果。

关键词：大学物理教学改革多媒体技术整合

双正、双负和单负介质光子晶体能带的比较研究

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河池学院学报 2014年第2期34卷 24-28页

作者：潘继环河池学院物理与机电工程学院广西宜州546300

利用传输矩阵法理论,对双正、双负和单负介质构成的对称结构光子晶体能带谱进行了对比研究,结果得到:由不同介质材料构成的对称结构光子晶体,其能带谱存在很大的差异,其中以单负介质光子晶体禁带宽度最宽,双负介质光子晶体次之,双正介... 详细信息

利用传输矩阵法理论,对双正、双负和单负介质构成的对称结构光子晶体能带谱进行了对比研究,结果得到:由不同介质材料构成的对称结构光子晶体,其能带谱存在很大的差异,其中以单负介质光子晶体禁带宽度最宽,双负介质光子晶体次之,双正介质光子晶体的禁带宽度为最窄;当周期数变大时,光子晶体禁带中的透射峰带宽均逐渐变小并趋于尖锐,且以单负介质的光子晶体透射峰带宽减小的速度为最快;介质厚度d B对单负介质光子晶体的调制效果要优于对双正和双负光子晶体的调制效果;入射角对单负介质光子晶体能带谱的影响要大于对双正和双负介质光子晶体。不同介质材料构成的对称结构光子晶体的这些光传输特性,可为镜像对称结构光子晶体的设计以及窄带或是宽带光子晶体光学滤波器件等提供理论指导。

关键词：光子晶体能带比较研究

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介质光学厚度对光子晶体透射谱特性的调制

激光与红外 2014年第5期44卷 559-562页

作者：潘继环苏安蒙成举河池学院物理与机电工程学院广西宜州546300

利用传输矩阵法理论,研究介质光学厚度对一维光子晶体(AB)5(BA)5透射谱特性的影响,结果表明:只要A、B介质光学厚度满足DA=DB,随着介质光学厚度的增大,光子晶体透射峰的透射率、频率位置和带宽均保持不变;当A、B介质的光学厚度不相等即DA... 详细信息

利用传输矩阵法理论,研究介质光学厚度对一维光子晶体(AB)5(BA)5透射谱特性的影响,结果表明:只要A、B介质光学厚度满足DA=DB,随着介质光学厚度的增大,光子晶体透射峰的透射率、频率位置和带宽均保持不变;当A、B介质的光学厚度不相等即DA≠DB时,随着DA或DB,或DA、DB的增大,禁带中透射峰的透射率不变但带宽变宽,且当DA>DB时透射峰向高频方向移动,反之则向低频方向移动。介质光学厚度对光子晶体透射谱的调制规律,可为光子晶体模型的构建、窄带光学滤波器和光学开关的设计等提供有益参考。

关键词：光子晶体光学厚度调制透射谱

两端对称缺陷对对称结构光子晶体透射谱的影响

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激光与红外 2014年第11期44卷 1253-1257页

作者：苏安蒙成举高英俊潘继环河池学院物理与机电工程学院广西宜州546300 广西大学物理科学与工程技术学院广西南宁530004

通过传输矩阵法理论,研究两端对称缺陷C对一维光子晶体ACmB(AB)n(BA)nBCmA透射谱的影响,发现:当无缺陷C时,透射谱符合镜像对称结构光子晶体的透射谱特征。当引入缺陷C后,随着缺陷折射率nC的增大,禁带中的透射峰逐渐变宽的同时向高频方... 详细信息

通过传输矩阵法理论,研究两端对称缺陷C对一维光子晶体ACmB(AB)n(BA)nBCmA透射谱的影响,发现:当无缺陷C时,透射谱符合镜像对称结构光子晶体的透射谱特征。当引入缺陷C后,随着缺陷折射率nC的增大,禁带中的透射峰逐渐变宽的同时向高频方向移动。缺陷周期数m及其光学厚度DC对透射谱的影响,在数值上具有明显的奇偶特性,m为奇数或DC为奇数倍时,禁带中心均出现一个较宽的通带,且通带宽度随着m或DC的增大逐渐变窄,而且通带上方的振荡加快,但通带中心所处频率位置不变;m为偶数或DC为偶数倍时,禁带中心均出现一条细窄缺陷模,且缺陷模的宽度随着m或DC的增大缓慢变窄,但其位置不变;两端对称缺陷对对称结构光子晶体透射谱的调制规律,为光子晶体设计窄带、宽带光学滤波器或光开关等提供指导。

关键词：对称缺陷光子晶体透射谱影响