论文标题
$ \ sqrt {s} = 13 $ tev中的PP碰撞中的Jet相关Deuteron生产
Jet-associated deuteron production in pp collisions at $\sqrt{s}=13$ TeV
论文作者
论文摘要
高能碰撞中的Deuteron产生对碰撞系统的时空演化敏感，通常由合并机制描述。我们第一次在$ \ sqrt {s} = 13 $ tev中首次提出了与喷气相关的Deuteron生产的结果，这提供了一个机会，可以在具有硬散射的事件中测试Deuteron生产的既定图片。使用具有较高横向摩托车的触发粒子（$ p _ {\ rm t}> 5 $ gev/$ c $）作为差异中射流存在的代理，我们观察到围绕喷气机代理的可测量的杜特龙人群。在触发粒子周围的狭窄角范围内测得的相关杜特龙产率与不相关背景的2.4-4.8标准偏差不同。数据由毕田模型计算描述，这些模型的计算以巴属结合为特征。
Deuteron production in high-energy collisions is sensitive to the space-time evolution of the collision system, and is typically described by a coalescence mechanism. For the first time, we present results on jet-associated deuteron production in \pp\ collisions at $\sqrt{s}=13$ TeV, providing an opportunity to test the established picture for deuteron production in events with a hard scattering. Using a trigger particle with high transverse-momentum ($p_{\rm T}>5$ GeV/$c$) as a proxy for the presence of a jet at midrapidity, we observe a measurable population of deuterons being produced around the jet proxy. The associated deuteron yield measured in a narrow angular range around the trigger particle differs by 2.4-4.8 standard deviations from the uncorrelated background. The data are described by PYTHIA model calculations featuring baryon coalescence.
