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首页> 外文期刊>Physical review, C >Production of multicharmed hadrons by recombination in heavy ion collisions
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Production of multicharmed hadrons by recombination in heavy ion collisions

机译：通过重离子碰撞中的重组生产多功能的强子

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摘要

We study the production of multicharmed hadrons by recombination in heavy ion collisions by focusing on the production of Xi(cc), Xi(cc)*, Omega(scc)*, Omega(scc)*, Omega(ccc) baryons and X(3872) mesons. Starting from the estimation of yields for those hadrons at chemical freeze-out in both the statistical and coalescence models, we evaluate their transverse momentum distributions at midrapidity in the coalescence model. Considering the experimental measurements of weakly decaying singly charmed hadrons we find that yields of multicharmed hadrons in heavy ion collisions at RHIC and LHC are large enough, and thereby not only multicharmed hadrons observed so far, e.g., the Xi(cc), but also those which have not been observed yet, can be discovered in heavy ion collisions. We also find that the transverse momentum distribution ratio between various multicharmed hadrons sensitively reflects the interplay between quark contents of corresponding hadrons as well as the transverse momentum distribution of charm quarks at the hadronization point, and therefore we insist that studying both the transverse momentum distributions of multicharmed hadrons themselves and transverse momentum distribution ratios between various multicharmed hadrons provide us with useful information on hadron production mechanism involving charm quarks in heavy ion collisions.
机译：通过重点关注XI（CC），XI（CC）*，Omega（SCC）*，Omega（SCC）*，Omega（CCC）Baryons和X（CCC）Baryons和X（CCC）Baryons和X（ 3872）介子。从统计和聚结模型的化学冻结时估计这些强盗的产量估计，我们评估了它们在聚结模型中的中溴之间的横向动力分布。考虑到弱腐烂的实验测量单独迷住的强度，我们发现在RHIC和LHC中重型离子碰撞中多功能的强度的产量足够大，因此迄今为止观察到多芯片的强子，例如XI（CC），还要尚未观察到，可以在重离子碰撞中发现。我们还发现，各种多机动强度之间的横向动量分配比敏感地反映了相应的强调的夸克含量与结转点的曲线夸克的横向动量分布，因此我们坚持要研究横向动量分布多芯片的HADRONS本身和各种多机动强度之间的横向动量分配比为我们提供了有关涉及重型离子碰撞中魅力夸克的强子生产机制的有用信息。

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