Multiparton interactions with an x-dependent proton size
Multiparton interactions with an x-dependent proton size
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具有 x 相关质子大小的多子相互作用
DOI：
10.1007/jhep05(2011)009
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发表时间：
2011
影响因子：
5.4
通讯作者：
T. Sjöstrand
中科院分区：
文献类型：
--
作者：
R. Corke;T. Sjöstrand
由其他间接证据支持的理论论证表明，高x部子的波函数应该比低x部子的波函数窄。在这篇文章中，我们提出了对PYTHIA 8的可变影响参数框架的修改来模拟这种影响。特别地，引入了高斯型强子物质轮廓，其宽度取决于被探测组分的x值。将结果与默认的单高斯和双高斯分布以及中间重叠函数进行比较。
Theoretical arguments, supported by other indirect evidence, suggest that the wave function of high-x partons should be narrower than that of low-x ones. In this article, we present a modification to the variable impact parameter framework of Pythia 8 to model this effect. In particular, a Gaussian hadronic matter profile is introduced, with a width dependent on the x value of the constituent being probed. Results are compared against the default single-and double-Gaussian profiles, as well as an intermediate overlap function.