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arXiv nucl-th/0209021nucl-th
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微观输运模型中的集体效应

Collective effects in microscopic transport models

Carsten Greiner

摘要:

我们给出了一个提醒的主要投入微观强子输运模型和物理目标时,描述相对论性重离子碰撞在SPS能量的各个方面。然后,我们首先强调的情况下,粒子比被再现的统计描述并不一定意味着一个明确的暗示,在强子化学冻结的存在一个完全各向同性的动量分布。其次,对奇异性产生的现状进行了简要的讨论。第三,我们证明了一个新的集体机制产生(奇怪的)反重子在强子描述,保证足够快的化学平衡的重要性。

英文摘要:

We give a reminder on the major inputs of microscopic hadronic transport models and on the physics aims when describing various aspects of relativistic heavy ion collisions at SPS energies. We then first stress that the situation of particle ratios being reproduced by a statistical description does not necessarily mean a clear hint for the existence of a fully isotropic momentum distribution at hadrochemical freeze-out. Second, a short discussion on the status of strangeness production is given. Third we demonstrate the importance of a new collective mechanism for producing (strange) antibaryons within a hadronic description, which guarantees sufficiently fast chemical equilibration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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