论文标题
全息QCD中高能量的弹性泵 - 普罗替型和乳旋散射
Elastic pion-proton and pion-pion scattering at high energies in holographic QCD
论文作者
论文摘要
在全息QCD模型中研究了高能pion-proton和Pion-pion散射的总截面和差异截面，重点介绍了Pomeron交换为这些横截面的主要贡献的Regge制度。 Pomeron由重新旋转2颗粒传播器描述，强子 - 蛋白酶耦合由Hadron的重力形式给出，这是从自下而上的ADS/QCD模型中获得的。由于在质子 - 蛋白散射的先前研究中已经确定了表征波梅隆轨迹的参数，因此可以用单个可调参数表示Pion-Proton横截面。一旦该参数由Pion-Proton总横截面的实验数据确定，就可以计算其差分横截面和Pion-Pion横截面，而无需任何其他参数。尽管当前可用的数据有限，但发现我们的计算与这些数据一致。我们的预测已明确显示，目前的模型可以在未来的实验设施中进行测试。
The total and differential cross sections of high energy pion-proton and pion-pion scattering are investigated in a holographic QCD model, focusing on the Regge regime in which the Pomeron exchange gives the dominant contribution to those cross sections. The Pomeron is described by the Reggeized spin-2 particle propagator, and the hadron-Pomeron couplings are given by gravitational form factors of the hadrons, which are obtained from the bottom-up AdS/QCD models. Since the parameters, which characterize the Pomeron trajectory, have been determined in a preceding study of the proton-proton scattering, the pion-proton cross sections can be expressed with a single adjustable parameter. Once this parameter is determined by the experimental data of the pion-proton total cross section, its differential cross section and the pion-pion cross sections can be calculated without any additional parameter. Although the currently available data are limited, it is found that our calculation is consistent with those. Our predictions are explicitly shown, and the present model can be tested at the future experimental facilities.
