论文标题
与爱丽丝的及时和非预付款
Prompt and non-prompt charm baryons with ALICE
论文作者
论文摘要
最新的PP和PB碰撞中侵略性迅速产生的测量结果表明，Baryon与膜的产量比明显高于$ \ rm E^+E^ - $ collisions中的Baryon与 - 膜产量比，这表明魅力片段在不同的碰撞系统中并不普遍。因此，迅速魅力生产的更精确和更广泛的测量对于研究派对富裕环境中的魅力夸克强调至关重要，就像在LHC Energies在PP碰撞中产生的环境一样。质子中的迅速魅力baryon to-meson的产量比 - 核核粉碰撞提供了有关强发机制可能进行的其他修改，冷核物质效应以及可能存在的集体效应的重要信息，从而可以改变重量味的黑质。非预付的魅力 - 夏普生产可以提供有关美容领域的信息，可用于研究重夸克强调的风味依赖性。在这项贡献中，讨论了Alice测得的每单位迅速差异和魅力片段碰撞的最新结果，以及PP和P-PB碰撞以及魅力片段化的分数和魅力生产横截面。
Recent measurements of prompt charm-baryon production at midrapidity in pp and p--Pb collisions show baryon-to-meson yield ratios significantly higher than those in $\rm e^+e^-$ collisions, suggesting that the charm fragmentation is not universal across different collision systems. Thus, more precise and broader measurements of prompt charm-baryon production are crucial to study the charm quark hadronization in a partonic-rich environment like the one produced in pp collisions at the LHC energies. Prompt charm baryon-to-meson yield ratios in proton--nucleus collisions provide important information about possible additional modification of hadronization mechanisms, on cold nuclear matter effects, and on the possible presence of collective effects that could modify the production of heavy-flavor hadrons. The non-prompt charm-hadron production can provide information about the beauty sector and can be used to study flavor dependence of heavy-quark hadronization. In this contribution, the most recent results on prompt and non-prompt charm-hadron yield ratios in pp and p--Pb collisions and on charm fragmentation fractions and charm production cross section at midrapidity per unit of rapidity measured by ALICE are discussed.
