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NUCLEAR BINDING EFFECTS ON DRELL-YAN PAIR PRODUCTION

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Chinese Physics Letters 1989年第8期6卷 339-342页

作者： SHEN Jianguo qiu xijun Shanghai Institute of Nnuclear Research Academia SinicaShanghai

The production of high mass dimuon for π^(-) W was calculated in the framework of the dual model・The ratio of DY cross sections on two different nuclear targets is close to that of DIS cross sections in the kinetic r... 详细信息

关键词： experiment. cross kinetic

Dynamics of nuclear spin-1/2 system in a strong bichromatic RF-field

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Nuclear Science and Techniques 2009年第1期20卷 56-59页

作者： LU Hongliang SHI Chunhua qiu xijun Department of Physics Shanghai University Shanghai 200444 China

Based on calculating the influence of RF-field with various physical parameters on the dynamics of the spin 1/2 system,it was found that the spin state could be changed up and down by choosing appropriate RF pulses, and the coherent control of the RF pulses could substantially modify the behavior of spin dynamics:quicker change of two states could be produced even for small pulse *** addition,the oscillatory structures around the resonant frequency and the propagation features of the pulses depend on the relative phase of the bichromatic RF pulses.

关键词：原子能核四极矩共振探测原理试验

IS THE THERMAL DILEPTON SPECTRUM A SIGNATURE FOR DIAGNOSING FIRST-ORDER DETONATION QCD PHASE TRANSITION?

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Chinese Physics Letters 1989年第9期6卷 389-392页

作者： SHEN Jianguo qiu xijun Institute of Nuclear Research Academia SinicaShanghai

Detonation has two different scenarios:the Gyulassy's scenario and the Kapustafs *** dilepton production rate in the Kapustafs scenario is *** with the Gyulassyfs scenario,the peculiar property of the spectrum and its dynamical origin in the detonation phase transition are discussed and *** spectrum is not a signature for diagnosing the detonation phase transition.

关键词： transition. spectrum signature

NON-TOPOLOGICAL SOLITON IN NUCLEAR MEDIUM

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Chinese Physics Letters 1990年第8期7卷 341-344页

作者： ZHANG Jianwei JIN Hongli qiu xijun Institute of Nuclear Research Academia SinicaShanghai 201849 On leave from Inner-Mongonia Teachers College for the Nationalities

The bag constant and the size increment of a nucleon(soliton)embedded in nuclear medium,are calculated in a non-topological soliton *** results may be understood as arising from the change of the vacuum properties in ... 详细信息

关键词： model. soliton increment

EFFECTS OF THE LATENT HEAT AND PARTICLE DISTRIBUTION ON THE DILEPTON SPECTRUM

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Chinese Physics Letters 1990年第8期7卷 349-352页

作者： HE Zejun ZHANG Jiaju LI Panlin qiu xijun Institute of Nuclear Research Academia SinicaShanghai 201849

The previously derived relativistic hydrodynamic equation from energy-momentum conservation is generalized to include the particle number *** calculation on the basis of the new formalism we find that the particle distribution and latent heat significantly change the characteristic dilepton spectrum for the formation of a quark matter,which had been predicted by the other author.

关键词： momentum quark relativistic

Quark Deconfinement of a Hadron in Ultrarelativistic Nucleus-Nucleus Collisions

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Chinese Physics Letters 1994年第11期11卷 665-668页

作者： HE Zejun CHEN Junfeng XU Xiaoming qiu xijun CCAST(Would Laboratory)P.O.Box 8730 Beijing 100080 Institute of Nuclear Research Academia SinicaShanghai 201800 Department of Applied Physics Shanghai Jiaotong UniversityShanghai 200030

The temperature dependent energy and corresponding internal pressure of the hadron are obtained by taking Fermi weighted sums over internal discrete energy *** find that beyond the critical temperature,the solution of the hadron radius determined from the balance relation between the internal and external pressures of the hadron disappears,which shows that the quark deconfinement transition has *** addition,it is shown that the heat bath plays role in delaying the deconfinement process.

关键词： process. radius quark

Emergence of the Macroscopic Quantum Superposition State in Microtubules

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Journal of Modern Physics 2013年第6期4卷 734-737页

作者： Tongcheng Wu Keming Ren xijun qiu Department of Physics Shanghai University Shanghai China School of Science Huaihai Institute of Technology Lianyungang China

Many researchers conceive communication in Microtubules (MTs), and established theoretical models to show both classical and quantum information processing. In this paper, we studied the usually neglected interactions between the electronic dipole of water molecules in microtubules and the quantized electromagnetic radiation field. We find that the emergence collective coherent radiation, and it can turn into macroscopic quantum superposition state when passing through MTs. This could have a fundamental role in the quantum information processing.

关键词： Microtubule Kerr Medium Macroscopic Quantum Superposition State

RELATIVISTIC SELF-CONSISTENT FIELD CALCULATIONS FOR SOME CLOSED-NUCLEI

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Science in China,Ser.A 1986年第12期29卷 1283-1295页

作者：邱锡钧张金根黄玲芳 Shanghai Institute of Nuclear Research Acadamia Sinica

A relativistic Dirac-Hartree model for nucleons interacting through exchange of scalar and vector bosons is considered. The model is used to carry out the relativistic self-consistent calculations for the closed-shell nuclci 16O, 40Ca, and 48Ca. The numerical calculations are improved by using the spline method and the Gauss integral in computing the iterative self-consistent potential. The binding energies, the eigenvalues, the spin-orbit splittings, the r.m.s, radii, etc. are calculated. The model fairly explains these physical quantities. This paper discusses also the sensitivity of the results to variations in the parameters of the scalar boson.

关键词： RELATIVISTIC SELF-CONSISTENT FIELD CALCULATIONS FOR SOME CLOSED-NUCLEI

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相对论性核多体动力学理论的新发展

核技术 1989年第8期12卷 466-471页

作者：邱锡钧中国科学院上海原子核研究所

本文综述了近几年来相对论性核多体动力学理论的新发展。侧重评介了相对论性平均自洽场理论在唯象学上的发展、相对论性核场论的量子修正和存在问题.对考虑核子亚结构的相对论性多体问题的某些理论方法,本文也作了简介。

关键词：相对论性多体问题核论