论文标题
低质量$ρ$梅森的Dilepton衰变
Dilepton Decay of Low-mass $ρ$ Mesons
论文作者
论文摘要
Hades合作通过比较C和CH $ _2 $目标的数据的比较，以$π^ - $诱导的反应提取了Dilepton质谱。这些光谱是用不同版本的媒介介子优势来解释的。在这里，我们介绍从理论和发电机Gibuu获得的结果。我们首先检查所使用的减法程序，然后讨论质子靶标获得的质谱。我们指出，关于VMD版本的任何结论都需要在有趣的质量区域中了解$ρ$频谱功能。
The HADES collaboration has extracted dilepton mass spectra for $π^-$ induced reactions on the proton from a comparison of data taken on C and CH$_2$ targets. The spectra were interpreted in terms of different versions of vector meson dominance. Here we present results obtained from the theory and generator GiBUU. We first check the subtraction procedure used and then discuss the obtained mass spectra for the proton target. We point out that any conclusions on the version of VMD requires the knowledge of the $ρ$ spectral function in the interesting mass region.
