Status of hypertriton binding energy measurements at the Mainz Microtron
Status of hypertriton binding energy measurements at the Mainz Microtron
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美因茨 Microtron 的 hypertriton 结合能测量现状
DOI：
10.1142/9789811219313_0123
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
on behalf of the A1 Colla
中科院分区：
文献类型：
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作者：
Achenbach Patrick;Garre Sergio Alves;Eckert Philipp;Orrit Sa?l Garcia;Herrmann Philipp;Klag Pascal;Mildeberger Marten;Pochodzalla Josef;Kaneta Masashi;Konishi Yoshihiro;Nagao Sho;Nakamura Satoshi N.;Toyama Yuichi;Gogami Toshiyuki;on behalf of the A1 Colla
近年来，衰变π介子光谱学的方法是在美因茨微波加速器（MAMI）开创的。这种方法有可能实现轻超核基态质量测量前所未有的精度。它的目的是在约20 keV的Λ结合能的统计和系统的不确定性。特别是超曲子为处理奇异重子的强相互作用理论提供了几个重要的基准，可以与氘在传统重子相互作用中的作用相媲美。MAMI正在进行高精度超曲子衰变π介子光谱学的准备工作，特别是预计将来将使用锂靶。该目标将被主动冷却以承受射束加热。该实验将通过广泛的校准来补充，以达到精度目标。
In recent years the method of decay-pion spectroscopy was pioneered at the Mainz Microtron (MAMI). This method has the potential to achieve ground state mass measurements of light hypernuclei with unprecedented precision. It is aimed at statistical and systematic uncertainties in the Λ binding energy of about 20 keV. Especially the hypertriton provides several important benchmarks for the strong interaction theory dealing with strange baryons, comparable to the role of deuterium for conventional baryon interactions. Preparations for the high-precision decay-pion spectroscopy of hypertriton are ongoing at MAMI, in particular the use of a lithium target is foreseen in the future. This target will be actively cooled to withstand the beam heating. The experiment will be complemented by extensive calibrations to reach the precision goal.