S=−3 physics at J-PARC

Experiments with strangeness of −3 are now being planned at the J-PARC hadron experimental facility (HD-hall) to study ΩN interaction and structure of Ω baryons. In order to perform S=−3 experiments, two new beam lines are to be constructed in the HD-hall, which will provide charged secondary beams with higher momentum than those of existing beam lines. In this paper, planned experimental programs on S=−3 physics at J-PARC as well as current designs of the new beam lines are introduced.