重离子碰撞中相干π介子发射的关联搜索
核理论
2009-11-07 v3 高能物理 - 唯象学
摘要
我们提出了提取由重离子碰撞中准经典π介子源形成所决定的相干π介子发射成分的方法。这些方法利用了在存在相干辐射时，全同和非全同π介子关联函数中量子统计和末态相互作用效应的非平凡修正。我们详细讨论了在超相对论重离子碰撞产生的大膨胀系统中，从π⁺π⁻、π⁺π⁺和π⁻π⁻关联函数以及单π谱中提取相干π谱的方法。
引用
@article{arxiv.nucl-th/0107015,
title = {Correlation search for coherent pion emission in heavy ion collisions},
author = {S. V. Akkelin and R. Lednicky and Yu. M. Sinyukov},
journal= {arXiv preprint arXiv:nucl-th/0107015},
year = {2009}
}
备注
21 pages, 3 eps figures, ReVTeX, corrected submission abstract. Version published in PRC 65 (2002) 064904. Added is a detailed explanation of the differences between pure coherent states and charge constrained coherent states in the case of a simple example model. The expressions for two-particle spectra taking into account both the final state interaction and the coherent component of pion emission are derived in a more general and transparent way