大型强子对撞机中质子与质子碰撞的能量多重数

Energy Multiplicity in Proton-proton Collision at LHC Energies

使用PYTHIA8事件产生器讨论了大型强子对撞机中质子质子碰撞后的能量多重数问题.一个类似Fisher雨滴模型的指数分布规律被发现,进一步研究表明,随着碰撞能量的提高,这个规律越明显.这预示着高能碰撞中强子与夸克间存在相似的相变.

In this paper, multiplicity of energy distribution after proton-proton collision at LHC energies was studied by using PYTHIA8 generator. A power law distribution of the form as what is predicted by the Fisher’s droplet model for liquid-gas phase transitions was found. It is also shown that with the increase of colliding energy, the form of power law is more precisely like the Fisher’s. So we predict that there is a similar phase transition between hadrons and quarks in high energy collisions.