Diffractive dijet production and Wigner distributions from the color glass condensate
Diffractive dijet production and Wigner distributions from the color glass condensate
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DOI：
10.1103/physrevd.99.074004
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发表时间：
2019-02
影响因子：
5
通讯作者：
H. Mantysaari;N. Mueller;B. Schenke
中科院分区：
文献类型：
--
作者：
H. Mantysaari;N. Mueller;B. Schenke
对部分子维格纳分布敏感的实验过程提供了一个强有力的工具来推进我们对质子结构的理解。在本文中，我们在色玻璃凝聚体框架下计算了质子的胶子Wigner和Husimi分布，该框架包括空间相关的McLerran-Venugopalan初始组态和Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner方程的显式数值解.我们确定领先的各向异性的维格纳和Husimi分布之间的角度的影响参数和横向动量的函数。我们研究这些角度相关性的实验签名在建议的电子-离子对撞机计算相干衍射dijet生产截面在同一框架内的e+p碰撞。具体地说，我们预测的椭圆调制的横截面作为一个函数的核子反冲和dijet横向动量之间的相对角度为一个很宽的运动学范围。我们进一步预测它依赖于碰撞能量，这是由质子的增长与减少x。
Experimental processes that are sensitive to parton Wigner distributions provide a powerful tool to advance our understanding of proton structure. In this work, we compute gluon Wigner and Husimi distributions of protons within the color glass condensate framework, which includes a spatially dependent McLerran-Venugopalan initial configuration and the explicit numerical solution of the Jalilian-Marian–Iancu–McLerran–Weigert–Leonidov–Kovner equations. We determine the leading anisotropy of the Wigner and Husimi distributions as a function of the angle between the impact parameter and transverse momentum. We study experimental signatures of these angular correlations at a proposed electron-ion collider by computing coherent diffractive dijet production cross sections in e+p collisions within the same framework. Specifically, we predict the elliptic modulation of the cross section as a function of the relative angle between the nucleon recoil and dijet transverse momentum for a wide kinematical range. We further predict its dependence on the collision energy, which is dominated by the growth of the proton with decreasing x.