搜索结果: 1-15 共查到“原子核物理学 2.6 GeV”相关记录20条 . 查询时间(0.08 秒)
在国家自然科学基金项目(批准号:11874295,11804269,11905169)等资助下,西安交通大学理学院栗建兴教授课题组与德国马克斯普朗克核物理所Christoph H. Keitel教授课题组合作在高偏振度高亮度GeV伽马射线制备方法研究方面取得重要进展,提出利用超强超短激光脉冲与相对论电子束的非线性康普顿散射机制产生高偏振度、高亮度、超短GeV伽马射线脉冲新方案。该成果以“Polar...
Pion productions by proton and Helium-3 on Au197 target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon
GeV/nucleon
2011/7/20
Based on a Relativistic Boltzmann-Uehling- Uhlenbeck transport model, proton and $^{3}$He induced reactions on $^{197}$Au target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon are studied.
Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV
Azimuthal correlations electrons heavy-flavor decay with hadrons p+p and Au+Au collisions sqrt(s_NN)=200 GeV
2011/1/4
Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary scaled p+p collisions. These mea...
Measurement of the reaction $γp \rightarrow K^ + \Sigma^{\pm}\pi^{\mp}$ at photon energies up to 2.6 GeV
Measurement the reaction $γp \rightarrow K^ + \Sigma^{\pm}\pi^{\mp}$ photon energies 2.6 GeV
2011/1/4
The reactions $\gamma p \rightarrow K^{+}\Sigma^{\pm}\pi^{\mp}$ were studied with the SAPHIR detector using a tagged photon beam at the electron stretcher facility ELSA in Bonn. The decays $\Sigma^{-}...
Measurement of the reaction $γp \TO K^ + \Lambda(1520)$ at photon energies up to 2.65 GeV
Measurement the reaction $γp \TO K^ + \Lambda(1520)$ photon energies 2.65 GeV
2011/1/4
The reaction $\gamma p \TO K^+\Lambda(1520)$ was measured in the energy range from threshold to 2.65 GeV with the SAPHIR detector at the electron stretcher facility ELSA in Bonn. The $\Lambda(1520)$ p...
Measurement of inclusive charged current interactions on carbon in a few-GeV neutrino beam
Measurement of inclusive charged current interactions carbon few-GeV neutrino beam
2011/1/4
The SciBooNE Collaboration reports a measurement of inclusive charged current interactions of
muon neutrinos on carbon with an average energy of 0.8 GeV using the Fermilab Booster Neu-
trino Beam.
π0 Photoproduction on Deuteron for Photon Energies from 0.6 to 1.15 GeV
pion photoproduction resonance
2009/10/29
Differential and total cross sections of the γp→π0p and the γd→π0pn reaction were measured for photon energies between 640 and 1 150 MeV. The data have been compared with SAID and MAID model calculat...
GeV能量的Fe离子在C60薄膜中的辐照效应研究
C60薄膜 辐照效应 GeV能量的离子
2009/10/29
利用傅立叶转换红外光谱和Raman谱仪分析了0.98 GeV的Fe离子在电子能损Se为3.5 keV/nm时, 不同辐照剂量(5×1010 —8×1013 ions/cm2)下, 在C60薄膜中引起的辐照损伤效应。 分析表明, Fe离子辐照引起了C60分子的聚合与损伤。 在辐照剂量达到一中间值1×1012 ions/cm2, C60分子的损伤得到部分恢复, 归因于电子激发引起的退火效应。 通过对R...
(5—50)GeV/c高山荷电强子动量谱
强子动量谱 高山荷电 (5—50)GeV/c
2009/8/13
在海拔3220米高山上, 利用大型磁谱仪测量了垂直方向动量区间(5—50)GeV/c的π-介子和质子微分动量谱. 二个谱可以分别表示为: jπ-(P)=9.6×10-4p-2.6(cm2﹒sr﹒s﹒GeV/c)-1和jp(P)=1.26×10-3p-2.5(cm2﹒sr﹒s﹒GeV/c)-1; 并得到该能区内二者的数目比N(π-;)/N(p)=0.62±0.14.
158A GeV/c Pb+Pb碰撞可能有QGP的一旁证
强子和弦级联模型 QGP 直接光子
2009/7/31
用不含QGP假设的强子和弦级联模型(JPCIAE) ,研究了CERNWA98实验组新近发表的158 AGeV/c Pb+Pb中心碰撞中直接光子和π0粒子的横动量分布:两者的理论结果均一致的低于实验值.联系到JPCIAE能成功解释无直接光子超出确切迹象的WA80和WA93对200A GeV/c S+Au中心碰撞测量得出的结果:因而为158A GeV/c Pb+Pb中心碰撞中可能有QGP生成提供了一个...
对3.7A GeV 16O-Em作用产生的慢粒子标度阶乘矩分布进行研究, 得出间歇指数随矩阶数的增加而增加, 随靶核质量的增加而减小; 反常分形维数
随q的增加而增加; 对于每一个q值, dq随平均多重数的增加而减小,
表明在3.7A GeV 16O-Em作用中多粒子产生具有自相似级联的性质.
用建立在LUND弦模型特别是PYTHIA事件产生器基础上的描写极端相对论性核一核碰撞的强子和弦级联模型—JPCIAE研究了入射能量为200A GeV的S+ Au中心碰撞中光子产生.模型同时考虑了部分子QCD散射过程、强子末态相互作用以及强子衰变等光子产生反应道并作了协调处理.JPCIAE模型计算结果很好再现了WA93实验数据所呈现的低横动量增强效应.
研究了在美国BNL/AGS上能量10.7AGeV的197Au离子诱发核作用,报告了EMU–01国际合作实验关于射弹核碎裂和产生粒子密度等最新实验结果.
本文报道了在14.6A GeV的氦原子核轰击的核乳胶叠中,观察到的一个相对论性氧原子核碎裂为四个氦原子核的四分裂事例、并对它进行了测量.对碎裂的机制进行了解释,认为这一事例为氧原子核的集团模型提供了直接的实验证据.