A group photo taken in front of the SEP-HES-HKS spectrometer system in June 2009.
JLab E05-115 experiment was performed to investigate Λ hypernuclei up to medium heavy mass region at Jefferson Lab Hall C in 2009.
High resolution magnetic spectrometers, HKS and HES allowed us to achieve a sub-MeV energy resolution in FWHM. Furthermore, accuracy on the binding energy was improved compared to previous reaction spectroscopy with hadron beams owing to its calibration method using p(e,e'K+)Λ/Σ0.
The results of 7ΛHe,
12ΛB have been published, and an alaysis for the medium-heavy
hypernucleus 52ΛV is in progress.
Proposal (Status: Approved)
→ Jefferson Lab's page
The experiment has been done.
T. Gogami et al., "Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e,e'K+) reaction", Nuclear instruments and Methods in Physics Research A 900, 69-83 (2018).
T. Gogami, C. Chen, D. Kawama et al. (HKS (JLab E05-115) Collaboration),
"Spectroscopy of the neutron-rich hypernucleus
from electron scattering",
Physical Review C 94, 021302(R) (2016).
T. Gogami, C. Chen, D. Kawama et al.
(HKS (JLab E05-115) Collaboration),
"High Resolution Spectroscopic Study of
Physical Review C 93, 034314 (2016).
Y. Fujii et al., "High-precision three-dimensional field mapping of a high resolution magnetic spectrometer for hypernuclear spectroscopy at JLab", Nucl. Instrum. Methods, Phys. Res. A 795, 351--363 (2015).
L. Tang, C. Chen, T. Gogami, D. Kawama, Y. Han et al. (HKS (JLab E01-011 and E05-115) Collaborations),
"Experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of 12ΛB hypernuclei", Physical Review C 90, 034320 (2014).
T.Gogami et al.,
"Bucking coil implementation on PMT for active canceling of magnetic field", Nuclear instruments and Methods in Physics Research A 729, 816-824 (2013).