Description
The JSNS2 (J-PARC Sterile Neutrino Search at the J-PARC Spallation Neutron Source) experiment is searching for neutrino oscillations over a short 24 m baseline with Δm2 near 1 eV square. We already took the 1st long physics run in 2021 with 13% of approved POT by J-PARC. We’re doing analysis from those data. And we continue taking the 2nd long physics run since Jan. 2022. We also have a plan for constructing another detector as the 2nd phase of the experiment (JSNS2-II). The 2nd detector will be filled with 32 tons of Gd-LS, and have a 48 m baseline. Analysis using both 2 detectors will give significantly better sensitivity, especially in low Δm2 region with the longer baseline than the 1st detector.
In this poster, we will summarize the current status of JSNS2, and the plan & expected results for JSNS2-II , based on the analysis of JSNS2 1st long physics data.
| Collaboration | JSNS2 / JSNS2-II collaboration |
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