具有4个气态目标的完整Siddharta-2实验设备的首次测试

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具有4个气态目标的完整Siddharta-2实验设备的首次测试

First tests of the full SIDDHARTA-2 experimental apparatus with a 4 He gaseous target

论文作者

Scordo, A., Amsler, C., Bazzi, M., Bosnar, D., Bragadireanu, M., Cargnelli, M., Carminati, M., Clozza, A., Deda, G., De Paolis, L., Del Grande, R., Fabbietti, L., Fiorini, C., Guaraldo, C., Iliescu, M., Iwasaki, M., Khreptak, A., King, P., Sandri, P. Levi, Manti, S., Marton, J., Miliucci, M., Moskal, P., Napolitano, F., Niedźwiecki, S., Ohnishi, H., Piscicchia, K., Sada, Y., Sgaramella, F., Shi, H., Silarski, M., Sirghi, D. L., Sirghi, F., Skurzok, M., Spallone, A., Toho, K., Tüchler, M., Doce, O. Vazquez, Yoshida, C., Zmeskal, J., Curceanu, C.

论文摘要

在本文中，我们介绍了在Frascati INFN国家实验室的DaφneCollider的相互作用区域完整安装Siddharta-2实验设备后进行的首次测试。在开始首次测量Kaonic氘2P {\ rightarrow} 1S跃迁之前，对背景排斥的准确评估。主要是通过Kaon触发系统实现的。此运行是在04-26/05/2022以4 he气体目标的时间内执行的，证实了2021年设置和不同机器条件的降低版本获得的10^5抑制因子。这一重要结果激发了目标细胞在氘中填充氘，并启动了Kaonic Deuterium 2p rogrof的Kaonic Deuterium 2p roffor的启动。

In this paper, we present the first tests performed after the full installation of the SIDDHARTA-2 experimental apparatus on the Interaction Region of the DAΦNE collider at the INFN National Laboratories of Frascati. Before starting the first measurement of the kaonic deuterium 2p{\rightarrow}1s transition, accurate evaluation of the background rejection. mainly achieved with the Kaon Trigger system, was required. This run, performed in the period 04-26/05/2022 with a 4 He gaseous target, confirmed the 10^5 rejection factor obtained with a reduced version of the setup and different machine conditions in 2021. This important outcome motivated the filling of the target cell with deuterium and the starting of the measurement campaign of the kaonic deuterium 2p{\rightarrow}1s transition.

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