Kaon Physics Using Polarized Beams and Targets

Hypernuclear physics is expected to play a large part in the TJNAF physics program. Several experiments in Halls A and C[1,2,4] have been approved to measure properties of bound hyperons. These experiments focus on measurements of the ΛN potential. The goal is to extract enough information to constrain the potential. The ΛN potential can be written as: V#Lambda#N = V(r) + VN(r)sN · 1#Lambda#N + V#Lambda#(r)s#Lambda# · 1#Lambda#N + Vσ(r)s#Lambda# · sN + VT(r)S12 where V(r) is the central part of the potential, VN(r)sN · 1#Lambda#N is the spin-orbit part of the nucleon-hyperon and V#Lambda#(r)s#Lambda# · 1#Lambda#N is the spin-orbit part of the hyperon-nucleon interactions, Vσ(r)s#Lambda# · sN is the spin-spin part of the potential and VT(r)S12 is the tensor part of the interaction