The upcoming experiments on electroproduction of Lambda hypernuclei at JLab

The JLab hypernuclear collaboration is currently preparing for the upcoming hypernuclear spectroscopy using electromagnetic reaction at JLab in the US. We, the JLab hypernuclear collaboration, have developed the missing mass spectroscopy of Lambda hypernuclei at JLab for decades[1]. We have achieved high energy resolution of around 500 keV(FWHM) for light hypernuclei and high accuracy of absolute binding energy better than 100 keV[2]. In the next experiment, we plan to investigate the binding energy of ⁴⁰_ΛK and ⁴⁸_ΛK to extract the isospin dependency of ΛNN three-body force[3]. Before conducting the experiment, it is important to estimate the expected hypernuclear spectra quantitatively and thus, I performed a simulation under the latest experimental conditions at JLab Hall-C.In this study, I modeled a realistic experimental setup, and evaluated the resolution and signal-to-noise ratio of the expected spectra. I will present the simulation results and the prospects for the experiment will be discussed based on the simulation results.

[1] T. Miyoshi et al., Phys. Rev. Lett. 90, 232502 (2003).

[2] L. Tang et al., Phys. Rev. C 90, 034320 (2014).

[3] S.N. Nakamura et al., JLab proposal for E12-15-008(2015).