搜索结果: 1-15 共查到“高能物理学 4.3 GeV”相关记录17条 . 查询时间(0.14 秒)
我们赖以生存的地球每时每刻都经受着来自外太空中高能粒子（亦称宇宙线）的轰击，这些粒子包括质子、正负电子、高能伽马射线、中微子和其他一些原子核等。宇宙线的发现距今已有一百多年，但关于宇宙线的起源、加速与传播过程还没有得到彻底的解答。我国于2015年底发射的首颗天文卫星“悟空”号暗物质粒子探测卫星的核心科学目标之一就是对高能宇宙线能谱进行精确测量，研究宇宙线物理。
Reanalysis of Proton Form Factor Ratio Data at $\mathbf{Q^2 =}$ 4.0, 4.8, and 5.6 GeV$\mathbf{^2}$
Proton Reanalysis Factor Ratio Data
2011/4/7
Reanalysis of Proton Form Factor Ratio Data at $\mathbf{Q^2 =}$ 4.0, 4.8, and 5.6 GeV$\mathbf{^2}$ 。
Mechanism of Pion Production in $alpha$p Scattering at 1 GeV/nucleon
Mechanism Pion Production $alpha$p Scattering 1 GeV/nucleon
2011/4/7
Mechanism of Pion Production in $alpha$p Scattering at 1 GeV/nucleon 。
$\rho^{0}$-vector meson elliptic flow ($v_{2}$) in $Au+Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV in STAR at RHIC
$\rho^{0}$-vector meson elliptic $Au+Au$ collisions $\sqrt{s_{NN}} = 200$ GeV
2011/4/6
$\rho^{0}$-vector meson elliptic flow ($v_{2}$) in $Au+Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV in STAR at RHIC 。
Identified charged hadron production in p+p collisions at sqrt(s)=200 and 62.4 GeV
p+p collisions sqrt(s)=200 62.4 GeV
2011/4/6
Identified charged hadron production in p+p collisions at sqrt(s)=200 and 62.4 GeV 。
Measurements of Cross Sections and Charged Pion Spectra in Proton-Carbon Interactions at 31 GeV/c
Measurements of Cross Sections Charged Pion Spectra Proton-Carbon Interactions at 31 GeV/c
2011/4/6
Measurements of Cross Sections and Charged Pion Spectra in Proton-Carbon Interactions at 31 GeV/c 。
In-medium reduction of the \eta' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions
In-medium reduction the \eta' mass
2011/4/6
In-medium reduction of the \eta' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions 。
Dynamically generated $N^{*}$ and $\Lambda^*$ resonances in the hidden charm sector around 4.3 GeV
Dynamically generated resonances hidden charm sector 4.3 GeV
2010/12/29
The interactions of $\bar{D}\Sigma_{c}$-$\bar D\Lambda_c$, $\bar{D}^{*}\Sigma_{c}$-$\bar D^*\Lambda_c$, and related strangeness channels, are studied within the framework of the coupled channel unitar...
Study of the process e+e－→π+π－π0π0 at energies √s<1 GeV
VEPP-2M spherical neutral detector meson decay
2010/5/7
In an experiment with the Spherical Neutral Detector at VEPP-2M collider the cross section of the process e+e－→π+π－π0π0 was measured. At energies √s<920 MeV this cross section was measured for the fir...
Particle correlation in p+p collision √sNN=200 GeV in PYTHIA
particle correlation PYTHIA gluon jet quark jet
2009/8/14
We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV ...
核乳胶中1.4A GeV 84Kr的相互作用自由程和射弹α-碎片多重数分布
核乳胶 自由程 射弹α-碎片 多重数分布
2009/7/28
本文报告了关于1.4A GeV 84Kr与乳胶核碰撞的相互作用自由程分布和射弹α-碎片多重数分布的初步测量结果.
2.1A GeV Ne+NaF碰撞中的粒子群关联与集体性
集合流 集体性 横向运动关联 粒子群关联
2009/7/6
提出了粒子群关联概念,并以此建立了一种检测集合流的新方法,采用新方法对2.1A GeV Ne+NaF碰撞的Bevalac流光室4π实验事件粒子群的关联进行了研究.通过与蒙特卡罗结果进行比较,推测该实验事件集合流的集体性约在75%-95%之间.
碰撞1.2A GeV Ar+KC1中的n粒子横向关联与集体性
横向关联 n粒子 Ar+KC1 1.2A GeV
2009/7/6
我们给出了一种分析集合流的n粒子横向关联函数方法,把对n粒子方位角关联的研究和集体性的计算推广到能够同时利用横向动量大小和方位角信息的情形.对于确定集合流的集体性而言,这种方法比仅仅利用方位角信息的多粒子方位角关联方法更为敏感.采用这种新方法,分析了Bevalac流光室1.2A GeV Ar+KC1碰撞中n粒子的横向关联,与蒙特卡罗模拟结果的对比推算了该碰撞中末态粒子的集体性是介于85%～95%之...
158A GeV Pb+Pb反应中多粒子产生的双源统计模型分析
统计模型 双源 多粒子产生
2009/7/2
提出双源统计模型并用它研究了158A GeV Pb+Pb反应中多粒子产生.模型很好地描述了实验,同时给出一个合理清晰的物理图像.反应系统由一个热而小的内源和一个大而较凉的外源构成.外源具有类弹和类靶特征,内源具有反应中心区特征.在freeze-out时系统仍处于膨胀中.