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arXiv 1508.04438hep-ph
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高能下DIS双喷流产生中的线极化胶子分布和椭圆方位各向异性

The distribution of linearly polarized gluons and elliptic azimuthal anisotropy in DIS dijet production at high energy

Adrian Dumitru, Tuomas Lappi, Vladimir Skokov

摘要:

通过求解B-JIMWLK快度演化方程,我们确定了在小$x$下稠密靶的线极化胶子的分布。从这些解决方案,我们估计的幅度$\sim \cos 2ϕ$方位角不对称的DIS dijet生产在高能量。我们发现相当大的长范围的快度方位角不对称的幅度在$v_2=\langle\cos 2ϕ\rangle \sim 10\%$的范围内。

英文摘要:

We determine the distribution of linearly polarized gluons of a dense target at small $x$ by solving the B-JIMWLK rapidity evolution equations. From these solutions we estimate the amplitude of $\sim \cos 2ϕ$ azimuthal asymmetries in DIS dijet production at high energies. We find sizeable long-range in rapidity azimuthal asymmetries with a magnitude in the range of $v_2=\langle\cos 2ϕ\rangle \sim 10\%$.

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