论文标题
PBPB碰撞中CMS检测器奇怪和非震撼美容作品的研究
Studies of Strange and Non-Strange Beauty Productions in PbPb Collisions with the CMS Detector
论文作者
论文摘要
美容夸克被认为是相对论重型离子碰撞中强烈相互作用媒介的最佳探针之一，因为它们主要是通过初始硬散射产生的。我们对B介子制作的测量结果提供了有关美容夸克扩散以及中等能量损失的风味依赖性的信息。在这些研究中，阐明强龙机制对于理解美容夸克的运输特性至关重要。我们建议在三组粒子上展示我们的实验结果：不推测$ j/ψ$和$ d^0 $，$ b^0_s $和$ b^+$，以及提示$ d^+_ s $和$ d^0 $。我们对$ b^0_s $生产的测量可以阐明媒介中美容重组的机制。此外，包含奇怪和美容夸克的介子制作的测量值可以提供有关夸克 - 杜松等离子体中陌生性增强的更多信息。出现了$ b^0_s $超过$ b^+$ $ $ $ $ $核修饰因子在核子核子质量中心能量为5.02 tev的核修饰因子，使用带有CMS探测器的完全重建的B介子。我们还将从部分B Mesons衰减链以及我们的精确测量中显示$ j/ψ$和$ d^0 $的提示$ d^+_ s $至$ d^0 $比率。
Beauty quarks are considered as one of the best probes of the strongly interacting medium created in relativistic heavy-ion collisions because they are predominantly produced via initial hard scatterings. Our measurements of B mesons productions provide information on the diffusion of beauty quarks and the flavor dependence of in-medium energy loss. In these studies, clarifying the hadronization mechanism is crucial for understanding the transport properties of beauty quarks. We propose to show our experimental results on three sets of particles: nonprompt $J/ψ$ and $D^0$, $B^0_s$ and $B^+$, and prompt $D^+_s$ and $D^0$. Our measurements of $B^0_s$ production can shed light on the mechanisms of beauty recombination in the medium. In addition, the measurements of mesons productions containing both strange and beauty quarks can provide more information about strangeness enhancement in the quark-gluon plasma. The ratio of $B^0_s$ over $B^+$ nuclear modification factors at a nucleon-nucleon center-of-mass energy of 5.02 TeV, using fully reconstructed B mesons with the CMS detector, are presented. We will also show the nonprompt $J/ψ$ and $D^0$ from the partial B mesons decay chains as well as our precise measurement the prompt $D^+_s$ to $D^0$ ratio in pp and PbPb collisions.
