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J/ψ and γ Photoproduction in Pb-Pb Collisions at Large Hadron Collider

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Chinese Physics Letters 1996年第7期13卷 512-515页

作者： liu lian-shou LI Yun-de Institute of Particle Physics Huazhong Normal UniversityWuhan 430070

Hard photoproduction of J/ψandγat large hadron collider Pb-Pb collisions with center of mass energy 6300AGeV is discussed in the process Pb+Pb→Pb+J/ψ(Γ)+X with three types of equivalent photon spectrum *** turns out that in hard photoproduction the J/ψcross section is dominated by the gluon and heavy quark fragmentation,especially the gluon fragmentation is very important at large pt,while theγcross section is dominated by the leading order *** may be conclude from the result that the hard photoproduction processes can be used to test several important problems such as the gluon distribution in the nucleus,gluon and heavy quark fragmentation of J/ψ,and so *** addition the process also provide a new way of testing the EMC effects.

关键词： function process fragmentation

Identification of Colour Reconnection using Factorial Correlator

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Chinese Physics Letters 2000年第5期17卷 338-339页

作者： FU Jing-Hua liu lian-shou Institute of Particle Physics Huazhong Normal UniversityWuhan 430079

A new signal is proposed for the colour reconnection in the hadronic decay of W^(+) W^(-) in e^(+)e^(-) *** Pythia Monte Carlo it is shown that factorial correlators for W^(+) and W^(-) without colour reconnection are almost identical to unity,while those for the cases with colour reconnection fall down approximately linearly in the loglog plot-This signal,being based on the tactorial correlator,is more sensitive than the ones using only averaged quantities.

关键词： quantities identical approximate

Levy Stability Index from Multifractal Spectrum

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Chinese Physics Letters 1999年第8期16卷 553-554页

作者： HU Yuan YU Mei-ling liu lian-shou Institute of Particle Physics Huazhong Normal UniversityWuhan 430079

A method for extracting the Levy stability indexμfrom the multi-fractal spectrum f(α)in high energy multipar-ticle production is *** index is an important parameter,characterizing the non-linear behaviour of dynamical fluctuations in high energy *** the random cascadingαmodel as an example,the validity of this method is *** is shown that this method,based on a linear fit,is consistent with and more accurate than the usual method,which gets the Levy index through fitting the ratio of qth to 2nd order multi-fractal(Rényi)dimensions to the Peschanski formula.

关键词： fractal dimensions behaviour

Contribution of Reggeon in Charge Exchange Processes of Deep Inelastic Scattering

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Chinese Physics Letters 1998年第9期15卷 634-635页

作者： ZHOU Yu-feng PENG Hong-an liu lian-shou Institute of Particle Physics Huazhong Normal UniversityWuhan 430079 Department of Physics Peking UniversityBeijing 100871

The experimental results on maximum pseudo-rapidityηmax distribution in the charge exchange processes e+P→e+N+X(X means anything)are *** contributions of reggeon from Regge phenomenology and ofπ^(+)-exchange from pion cloud model are *** results show that neither the Rρ-exchange nor the pion cloud model alone can explain the experimental data well,but after considering these two processes together,by using Monte Carlo simulation,a good agreement between the theoretical results and experimental data is found.

关键词： exchange Regge explain

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非二进制离散小波的研究

高能物理与核物理 2006年第7期30卷 646-651页

作者：林海刘连寿雁北师范学院大同037009 华中师范大学武汉430070

研究了非二进制离散小波,提出了构建基本小波函数的理论与方法,并以λ=3,4为例具体构建了小波函数．对非二进制小波的分解算法和回复算法进行了理论推证,并针对λ=3,4的情况具体研究了变换矩阵问题．提出了本文所得结果在高能碰撞研究... 详细信息

研究了非二进制离散小波,提出了构建基本小波函数的理论与方法,并以λ=3,4为例具体构建了小波函数．对非二进制小波的分解算法和回复算法进行了理论推证,并针对λ=3,4的情况具体研究了变换矩阵问题．提出了本文所得结果在高能碰撞研究中的重要应用前景．

关键词：小波分析非二进制小波高能碰撞小波函数

Two-particle correlation and finite size effects of rapiditybin in ultra-relativistic heavy-ion collisions

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Nuclear Science and Techniques 1998年第2期9卷 78-81页

作者： Zhou Dai-Cui Cai Xu liu lian-shou Qian Wan-Yan Wang Xiao-Rong Yang Chun-Bin and Yan Wen-Biao (Institute of Particle Physics, Hua-Zhong Normal University Wuhan 430079) InstituteofParticlePhysics Hua-ZhongNormalUniversityWuhan430079 InstituteofParticlePhysics Hua-Zhong

Using an aspect of rapidity bins with finite sizes the short-range and longrange behaviors of two-particle correlation, the connection of two particle correlation function with factorial moment and factorial correlator are investigated; and experimental data for 16 O+Em interactions at 14.6, 60 and 200 A GeV and 32 S+197Au interactions at 200A GeV are analyzed. It is shown that the bin-average of two-particle correlation function can naturally give a coordinate description of dynamical fluctuation such as the second order factorial moment and 1+1 order factorial correlator .

关键词：重离子超相对论碰撞二粒子关联有限尺度效应

A Rigidity Measurement of Pseudo-Rapidity Spectrum of Produced Particles in High Energy Nucleus-Nucleus Collisions

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Chinese Physics Letters 1998年第8期15卷 566-567页

作者： ZHOU Dai-cui CAI XU LI Yun-de liu lian-shou QIAN Wan-yan WANG Xiao-rong YANG Chun-bin YAN Wen-biao Institute of Particle Physics Huazhong Normal UniversityWuhan 430079

A new concept,rigidity of pseudo-rapidity spectrum,is extended into the study of the multiplicity fluctuations in high energy nucleus-nucleus *** using the novel method to analyze the data of l6O-Em at 14.6,60,and 200A GeV,and ^(32)S-Em at 200A GeV,it is found that the rigidity of pseudo-rapidity spectrum in the central domain of pseudo-rapidity might be a mixture of Poisson type and Wigner one.

关键词： rigidity spectrum Collisions

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学报与我校粒子物理学科的建设与发展

华中师范大学学报（自然科学版） 2005年第4期39卷 435-436页

作者：刘连寿华中师范大学物理与技术学院

从1955年2月创刊至今,《学报》已走过50年风雨历程,曾两度停刊,又两度复刊,从最初的文理合刊发展为文理分刊,从半年刊发展到双月刊(人文社会科学版)或季刊(自然科学版),学校在发展,学报也在不断成长壮大。人文社会科学版50年共发表论文3... 详细信息

从1955年2月创刊至今,《学报》已走过50年风雨历程,曾两度停刊,又两度复刊,从最初的文理合刊发展为文理分刊,从半年刊发展到双月刊(人文社会科学版)或季刊(自然科学版),学校在发展,学报也在不断成长壮大。人文社会科学版50年共发表论文3757篇,其中有不少著名学者的专业论文和中青年作者的获奖论文,推动了学术发展和社会进步,也展示了“忠诚、博雅、朴实、刚毅”的华师精神,彰显了百年老校的文化品位和学术品格。在湖北省历届期刊评比中,人文社会科学版均获优秀期刊称号,并获湖北省出版佳作奖。在国家新闻出版署的期刊评比中,人文社会版被评为“双效期刊”,进入中国期刊方阵。在中国人文社科学报学会两次评比中,人文科学版蝉联“全国双十佳社科学报”。所有这些成绩的取得,离不开学校领导的重视,离不开新老作者的支持,离不开广大读者的关爱,也离不开几代学报人的努力。值此50年刊庆之际,我们约请部分学校领导、新老作者和前任主编发表感言,以纟食谈者,并讠志纪念。

关键词：物理学科大学学报粒子建设成长历程师范

在电子-质子碰撞中识别瞬子末态方法的蒙特卡罗研究

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高能物理与核物理 2007年第2期31卷 119-124页

作者：许明梅刘连寿华中师范大学粒子物理研究所武汉430079

在e^+p深度非弹性散射的光子胶子融合过程中有可能出现瞬子,这是一类特殊的事件,称为瞬子参与的深度非弹性散射事件,本文用蒙特卡罗事件产生器QCDINS讨论了在瞬子参与的深度非弹性散射事件中识别瞬子末态和流喷注的方法．对各种不同方... 详细信息

在e^+p深度非弹性散射的光子胶子融合过程中有可能出现瞬子,这是一类特殊的事件,称为瞬子参与的深度非弹性散射事件,本文用蒙特卡罗事件产生器QCDINS讨论了在瞬子参与的深度非弹性散射事件中识别瞬子末态和流喷注的方法．对各种不同方法作了对比研究．找到了一种能使重建得到的喷注能量、瞬子能量、瞬子质量与强子化前的取值均比较接近的最佳方法．

关键词：电子质子碰撞光子胶子融合 QCDINS蒙特卡罗事件产生器瞬子流喷注