RHIC及LHC能区小系统的末态粒子关联及QGP信号的理论研究

RHIC和LHC能区p-p, p-Pb,p-Au,d-Au和3He-Au等碰撞所产生的小系统是当前相对论重离子碰撞领域的一个重要和热门的研究分支。在该方向有很多问题值得我们进一步研究和探索，例如小系统的集体流及其形成机制，小系统QGP信号的寻找和确认，等等。在未来的几年里，我们将围绕这些问题进一步发展应用于小系统的动力学初态涨落模型、流体力学模型、重组合模型及耦合模型，并利用这些模型具体研究１）LHC能区p-p小系统的末态粒子关联及C2{4}的符号；２）RHIC能区p-Au,d-Au及3He-Au碰撞小系统的集体流和初态涨落；３）小系统的非线性效应及其对集体流末态演化机制的检验；４）RHIC和LHC能区小系统V2价夸克标度率及小系统的部分子自由度和可能的QGP信号的探索。申请人在动力学模型构建和实验观测量的理论研究方面有着丰富的经验，能保证这项研究的顺利开展和进行。

The small systems created in p-p，p-Pb，p-Au, d-Au and 3He-Au collisions at RHIC and the LHC is an important and hot research area in the field of Relativistic Heavy Ion Collisions. There many important problem that need us to explore and study, such as the mechanism of collective flow, the search of possible QGP signals in the small systems, etc. To attack these issues, we will further develop dynamical initial conditions, hydrodynamics model, coalescence model and the related hybrid models and implement them to study: 1)the final state correlation and the sign problem of cumulant C2{4} in p-p collisions at the LHC, 2)the collective flow and initial state fluctuations in p-Au, d-Au and 3He-Au collisions at RHIC, 3)the non-linear effects and the related evaluation of collective flow with the final state interaction mechanism, 4) the valance quark scaling of v2 at intermediate pT in the small systems at RHIC and LHC and the evaluations of partonic degrees of freedom and possible QGP signals. The applicant has enriched experience on developing dynamical models and implementing such models to study the related experimental observables, which could ensure the smooth running of this project.