论文标题
多方相互作用在双重繁殖强生产中的作用
The role of multi-parton interactions in doubly-heavy hadron production
论文作者
论文摘要
美丽和魅力夸克是质子质子碰撞中的宽度量子染色体机构的理想探针，这是由于其质量大。在本文中，使用pythia生成的蒙特卡洛事件发生器生成的模拟样本研究了多方相互作用在双重繁殖哈登族生产中的作用。比较与独立发电机Bcvegpy和Genxicc进行了比较。描述了为含有重夸克的事件加快毕曲霉模拟的新方法，从而使能够生产具有多个重夸克对的大型样品。我们表明，在模型中预测了倍增的偶然生产速率，该模型允许重型夸克起源于不同的Parton-Parton相互作用（在相同的强子 - 哈德隆碰撞中），以组合形成此类HADRON。定量预测对颜色重新连接的建模敏感。我们建议一组能够区分这些额外贡献的实验测量。
Beauty and charm quarks are ideal probes of pertubative Quantum Chromodymanics in proton-proton collisions, owing to their large masses. In this paper the role of multi-parton interactions in the production of doubly-heavy hadrons is studied using simulation samples generated with Pythia, a Monte Carlo event generator. Comparisons are made to the stand-alone generators BcVegPy and GenXicc. New methods of speeding up Pythia simulations for events containing heavy quarks are described, enabling the production of large samples with multiple heavy-quark pairs. We show that significantly higher production rates of doubly-heavy hadrons are predicted in models that allow heavy quarks originating from different parton-parton interactions (within the same hadron-hadron collision) to combine to form such hadrons. Quantitative predictions are sensitive to the modelling of colour reconnections. We suggest a set of experimental measurements capable of differentiating these additional contributions.
