Experiment E12-17-003 searches for the nnΛ state through the 3H(e,e'K+)nnΛ reaction at JLab Hall A. The experiment used two HRSs to measure e' and K+ at the central momenta of 2.2 and 1.8 GeV/c, respectively, and scattering angles of θee' = θeK = 13.2 degrees.
The experiment was carried out from Oct 29 to Nov 25 in 2018.

FIG1 HRS spectrometers at JLab Hall A (2017).

FIG2 A photograph taken in Hall A counting room (November 2018).

Proposal (Status: Approved)

→ Jefferson Lab's page


Local collaboration meeting (September 7, 2018)

Hypernuclear collaboration meeting (March 23-24, 2017)

Analysis meeting

Personal Notes

Presentation files (E12-15-008 / E12-17-003)

Simple MC simulation for the nnΛ exp. (May 2017)

Geant4 MC simulation for the nnΛ exp. (March 2018)


Click here


JLab Hall A

JLab tritium experiment wiki


Tohoku wiki (E12-17-003)

後神 利志
Toshiyuki Gogami, D. Sc.

Graduate School of Science, Kyoto University