Dilepton decay of low-mass ? mesons
arxiv(2022)
摘要
The HADES Collaboration has extracted dilepton mass spectra for n- induced reactions on the proton from a comparison of data taken on C and CH2 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 p spectral function in the interesting mass region.
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关键词
low-mass
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