Virtual Photon Measurements with the HADES at GSI

被引：0
|
作者：
Otto, Jan-Hendrik [1 ]
机构：
[1] Justus Liebig Univ Giessen, Heinrich Buff Ring 16, D-35392 Giessen, Germany
来源：
PARTICLES AND NUCLEI INTERNATIONAL CONFERENCE 2021, PANIC2021 | 2021年
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D O I：
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中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this work we present work in progress results on the dielectron analysis of the HADES Ag+Ag data at a centre-of-mass energy of root sNN = 2.55 GeV. The high statistics data sample in combination with a strongly increased electron detection efficiency allows for a signal even in the Phi-meson mass region. With the recent upgrade of the HADES RICH photodetector an unprecedented quality and signal-to-background ratio was achieved. The obtained dielectron signal spectrum is compared to the simulated hadronic cocktail spectrum at freeze out.
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页数：6
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