Study of radiative decay of negatively charged excited hyperons

为了研究夸克物质的结构及其形成机制，研制了一套测量负荷超子辐射衰变过程的中子探测系统。它探测由高能光子束引起的强子产生反应所发射的中子。虽然由于束流强度有限等原因，我们还没有实现对预期反应的测量，但所开发的系统使我们能够对强子产生反应进行各种新的测量。

In order to study the structure of matters formed by quarks and its mechanism, a neutron detection system for measuring the radiative decay processes of negatively-charged hyperons has been developed. It detects neutrons emitted from hadron production reactions induced by a high-energy photon beam. Although due to the limited beam intensity and other reasons, we have not achieved the measurement of the intended reaction, the developed system enabled us to carry out variety of new measurements of hadron production reactions.