Hadronization from color interactions

A quark coalescence model, based on semi-relativistic molecular dynamics with color interactions among quarks, is presented and applied to pp collisions. A phenomenological potential with two tunable parameters is introduced to describe the color interactions between quarks and antiquarks. The interactions drive the process of hadronization that finally results in different color neutral clusters, which can be identified as hadrons based on some criteria. A Monte Carlo generator PYTHIA is used to generate quarks in the initial state of hadronization, and different values of tunable parameters are used to study the final state distributions and correlations. Baryon-to-meson ratio, transverse momentum spectra, pseudorapidity distributions and forward-backward multiplicity correlations of hadrons produced in the hadronization process, obtained from this model with different parameters, are compared with those from PYTHIA.     

吡唑含能离子盐的合成研究进展

吡唑环上有三个可修饰的碳位点和一个可修饰的NH位点,通过对这四个位点的修饰(主要是引入硝基、硝胺基、氨基、羟基以及形成稠环等),可设计出种类丰富的吡唑含能化合物.同时,相对于2,4,6-三硝基甲苯(TNT)、黑索金(RDX)、奥克托今(HMX)等常规含能化合物,吡唑含能化合物具有氮含量高、生成焓高及感度低等优势.近年来...