| 1. | A detector allowed the researchers to track radiation and by - products created by the high - energy collisions 一种探测器使研究员可以追踪这种高能碰撞产生的射线和合成物。 |
| 2. | As is well known , in high energy collisions the hadromzation of partons , being a soft process , can not be analyzed using perturbative qcd ( pqcd ) 在高能碰撞多粒子产生中,部分子的强子化是一个软过程,不能用微扰qcd来进行研究 |
| 3. | Therefore , in the study nonlinear phenomena in high energy collisions the hfm can be used only in combination with the cumulant variables 因此,在高能碰撞非线性现象(间歇和分形)的研究中,只有采用了累积变量时,才能使用横向阶乘矩进行计算。 |
| 4. | The local large fluctuation observed in the final phase space of cosmic rays experiment and high energy collisions cause intermittency and fractal to be the focus 间歇和分形现象是由在宇宙线实验和高能碰撞中末态粒子相空间中的局域大起伏而引起人们关注的。 |
| 5. | Investigating the dynamical fluctuations inside jets produced by the fragmentation of partons is an . effective way to explore the dynamics in liigh energy collisions 研究多粒子产生中的喷注内部的动力学起伏,是探索高能碰撞中的动力学机制的一种有效的手段 |
| 6. | After a brief review on the important methods and concepts about fluctuation , fractal and jet production in high energy collisions , some results of our work are presented systematically in this thesis 本文首先简要介绍了高能碰撞间歇与分形研究中的一些重要的原理和喷注产生的动力学理论基础,然后系统地报告我们所开展的部分研究工作。 |
| 7. | In the second part of the thesis , the non - thermal phase transition in high energy collisions is studied in detail in the framework of random cascade model . the relation between the characteristic parameter xq of phase transition and the rank q of moment is obtained using monte carlo simulation , and the existence of two phases in self - similar cascading multiparticle systems is shown . the relation between the critical point qc of phase transition on the fluctuation parameter q is obtained and compared with the experimental results from na22 文章第二部分中,我们用随机级联模型对高能碰撞中的非热相变作了仔细研究,用montecarlo模拟得到了表征相变的特征参数_ q与矩阶数q之间的关系,证实了自相似多粒子系统中存在两相,求出了相变点q = q _ c对起伏参数的依赖关系,并和na22实验结果进行了比较。 |
| 8. | Al . first applies the color - dipole approach to drell - yan process , which says that in the target rest frame the drell - yan process can be viewed as bremsstrahlung . rather than parton annihilation . according to factorization theorem , the drell - yan cross section can be expressed in terms of the same dipole cross section that appears in deep inelastic scattering 虽然高能反应的微分截面是洛仑兹不变的,但其部分子解释却是与坐标系有关的,最近, b . z . kopeliovich等提出靶静止系中drell - yan过程的色偶极模型,他们认为,在靶静止系高能碰撞的drell - yan过程是一韧致辐射过程而不是正反夸克对的湮灭。 |
| 9. | However power law might just mean soc , i . e . it is a inadequate criterion , so our results could n ' t predict the complete existence of soc in multiplicity production in high energy collisions ( soc means the relative fluctuation studied by us is not surely to be dynamic fluctuations ) . however , the result gives us enough confidence and courage to probe into a strong interaction theory in multiplicity production of high energy collisions based on non - equilibrium physics 然而,由于幂次分布与soc并没有严格对应关系,而只是在较大的程度上作为soc的判据,这使得我们的结果并不意味着高能碰撞的多重产生里就一定有soc存在从而我们所考察的起伏就一定是动力学起伏,但它仍然给了我们足够的信心和勇气去探索一个建立在非平衡态基础上的高能碰撞中多重产生的强相互作用理论。 |