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太阳风和行星际磁场在驱动地球磁层能量耗散中扮演着决定性角色。当行星际磁场具有南向分量时，太阳风物质和能量就会进入地球磁层，在其中对流，并最终释放到电离层和高层大气中，产生绚丽多彩的极光现象。在磁层中传播的大部分电磁能量由超低频波（Ultra-low Frequency,ULF,0.1 mHz～10 Hz）携带，并能耦合不同的等离子体区域。ULF波在产生准周期性地磁脉动和加速辐射带高能离子方面具有重...
第二十届非接触式原子力显微技术国际会议（NC-AFM 2017）
第二十届 非接触式原子力显微技术 国际会议
2016/12/21
受国际原子力显微技术执行委员会委托，由中国真空学会主办，国家纳米科学中心、中国人民大学和中国科学院苏州纳米技术与纳米仿生研究所联合承办的第二十届非接触式原子力显微技术国际会议（NC-AFM2017）兹定于2017年9月25日至29日在美丽的苏州市召开。非接触式原子力显微技术国际会议（International Conference on Non-Contact Atomic Force Micro...
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
Scalar-isoscalar states gravitational form factors dimension-2 condensates
2011/1/7
Scalar-isoscalar states are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajectory. We con...
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
s meson scalar-isoscalar states large-Nc Regge models pion and nucleon gravitational form factors
2011/1/14
Scalar-isoscalar states (JPC = 0++) are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajec...
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
s meson scalar-isoscalar states large-Nc Regge models pion and nucleon gravitational form factors
2011/1/10
Scalar-isoscalar states (JPC = 0++) are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajec...
Inclusive-jet cross sections in NC DIS at HERA and a comparison of the kT, anti-kT and SIScone jet algorithms
jet cross sections SIScone jet algorithms NC DIS
2010/3/16
For the first time, differential inclusive-jet cross sections have been measured in neutral current deep inelastic ep scattering using the anti-kT and SIScone algorithms. The measurements were made fo...
2维SU(NC)格点规范理论中矢量介子质量
矢量介子质量 2维SU(NC)格点规范理论
2009/8/12
用改进的格点哈密顿量和变分法，研究了2维SU(NC)规范场中矢量介子质量MV与夸克质量m和Wilson参数 的依赖关系．数值结果表明：对于NC =2、3、4、5、6、7, …，在标度窗口 内，MV/g与m的依赖关系近似为直线；但是矢量介子质量MV不明显依赖于Wilson参数 （这与夸克凝聚的情况不同）. 特别是，当 时, 本文的格点结果与Bhattacharya’s的连续理论强耦合相分析结果很好地...
2维SU(NC)格点规范理论中夸克真空凝聚
夸克 2维SU(NC)格点
2008/1/29
用改进的Wilson夸克格点哈密顿量和变分法研究2维SU(NC)规范场中夸克真空凝聚〈ψψ〉与夸克质量mq和Wilson参数r的依赖关系. 结果表明: 对于给定的r, 当NC=2,3,4,5,6,7,时,
〈ψψ〉suba/(gNC3/2)的值随mq的增大而减小. 对于较大的NC(如NC3), 当mq很小时, 〈ψψ〉suba(gNC3/2)对r的依赖性很小, 但随着mq的增大, 〈ψψ〉sub...