QGP有效微扰论中纯规范场的二圈热力学势

使用基于硬热圈(HTL)的重求和方法,计算了QGP中纯规范场的二圈热力学势及其重整化,得到了包含集体效应的结果.     

Nontransversality of the gluon polarization tensor in a chromomagnetic background field

We investigate the problem of the transversality of the gluon polarization tensor in a homogeneous Abelian chromomagnetic background field. Using the Slavnov-Taylor identities, we rederive the nontransversality known from a one-loop calculation in the Feynman gauge. In addition, we generalize the whole procedure to an arbitrary gauge-fixing parameter ξ and calculate the ξ-dependent part of the polarization tensor. __________ Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 148, No. 1, pp. 42–56, July, 2006.     

中国南海海绵Phakellia sp化学成份的分离和结构鉴定

海绵是最原始的多细胞动物,我国南海有几千种。国外从海绵中发现了多种新颖萜类、甾体和一些含氮、硫、卤素和带特异官能团的化合物。其中有些化合物具有学术上的重要意义,有些具有很强的生理活性,有些则已发展     

中药鬼灯擎根精油成分的研究

鬼灯擎(Roodgersia aesculifolia,Batal):又名慕荷,系虎耳草科(Saxifagacede)鬼灯擎属,主要分布于甘肃、陕西、四川、河南等省,而甘肃天水、陇南山区资源十分丰富。民间常用于治疗湿热下痢、久泻、白浊、崩带、金疮等疾病。经我们对该植物根部化学成分的研宄和有效部位的药理试验证明,对耶尔森菌、金黄色葡萄球菌等十种病菌和单纯泡疹病毒及     

做青强度对岭头单枞茶香气成分影响的研究

用气相色谱－质谱法分析了岭头单枞乌龙茶不同做青强度的茶叶香气组分的变化。结果表明，岭头单枞宜用偏轻做青。偏轻做青时芳樟醇及其氧化物含量较高，香气指数（Ｏｗｕｏｒ指数ＦＩ值）较高（达１２９１）。成品经感官审评，蜜韵显著，有花香，符合该品种风格特征，做青强度系数，以机摇系数００３１、全程系数００３８为佳。     

中国南海软珊瑚Sinularia microclavate化学成份的研究

我国南海有大量海洋生物,其中软珊瑚特别丰富。1985年,方振生等发现中国南海小棒短指软珊瑚Sinnlaria microclavate的乙醇提     

Hard loop effective theory of the (anisotropic) quark gluon plasma

The generalization of the hard thermal loop effective theory to anisotropic plasmas is described with a detailed discussion of anisotropic dispersion laws and plasma instabilities. The numerical results obtained in real-time lattice simulations of the hard loop effective theory are reviewed, both for the stationary anisotropic case and for a quark-gluon plasma undergoing boost-invariant expansion.     

Anomalous transport processes in turbulent non-Abelian plasmas

Turbulent color fields, which can arise in the early and late stages of relativistic heavy ion collisions, may contribute significantly to the transport processes in the matter created in these collisions. We review the theory of these anomalous transport processes and discuss their possible phenomenology in the glasma and quasistationary expanding quark–gluon plasma.     

An Analysis of the Proton Structure Function and the Gluon Distributions at Small x

Recently, we reported an analysis of Proton structure function at small x based on Taylor approximated DGLAP equations assuming a plausible relationship between the singlet and the gluon distributions. In this paper, we report a generalised version of the previous work. A corresponding study of the suggested gluon distribution is also made.The present generalised version of the model for the structure function results in a wider x range of phenomenological validity than the earlier one. A comparison of both the models of the proton structure function and the gluon distribution is made with exact result as well as with the Froissart saturated models of Block, Durand and Mckay.