论文标题
deuteron在Auau碰撞中的生产$ \ sqrt {s_ {nn}} = 7-200 $ GEV通过Pion催化
Deuteron production in AuAu collisions at $\sqrt{s_{NN}} = 7-200$ GeV via pion catalysis
论文作者
论文摘要
我们使用$ \ sqrt {s_ {nn}} = 7-200 $ gev的中央AUAU碰撞的无氧化流体动力 +传输模拟研究杜特隆的生产。在从流体动力学到运输的过渡时，将杜特龙进行热采样，并通过$πpn \ leftrightarrowπd$反应在运输中进行了主要相互作用。对于所有考虑的所有碰撞能，对测得的质子，Lambda和Deuteron横向动量光谱和产率都很好。我们进一步提供了对合并参数能量依赖的最小值的可能解释，$ b_2（\ sqrt {s_ {nn}}）$以及deuterons的$ b_2（d）$之间的差异和抗deuterons和anti-deuterons和anti-deuterons and anti-deuterons and anti-deuterons and anti-b_2（$ b_2（$ b_2）（$ b_2）（\ bar bar {d d} d}）$。
We study deuteron production using no-coalescence hydrodynamic + transport simulations of central AuAu collisions at $\sqrt{s_{NN}} = 7 - 200$ GeV. Deuterons are sampled thermally at the transition from hydrodynamics to transport, and interact in transport dominantly via $πp n \leftrightarrow πd$ reactions. The measured proton, Lambda, and deuteron transverse momentum spectra and yields are reproduced well for all collision energies considered. We further provide a possible explanation for the measured minimum in the energy dependence of the coalescence parameter, $B_2(\sqrt{s_{NN}})$ as well as for the difference between $B_2(d)$ for deuterons and that for anti-deuterons, $B_2(\bar{d})$.
