Study of the ${\rm {}^4 He(e,e^{\prime}p)}$ reaction up to high missing momenta and energies. Search for N-N Short Range Correlations

The ${\rm {}^4He(e,e^{\prime}p)}$ reaction has been recently measured up to high missing momenta and missing energies; ${\rm p_m~of~ 1~GeV/c}$ and ${\rm E_m~ of ~ 200~ MeV}$, respectively, in Hall A of Jefferson Lab., part of a rich short range correlation experimental program. The continuum region is under study in order to investigate high-nucleon-momenta components in the ${\rm {}^4 He}$ wave function with the absorption of virtual photons on nucleons correlated in pairs in the ${\rm {}^4 He}$ ground state. The measurements were performed at $x_B = 1.25$ and at a fixed transferred four-momentum ${Q^2}=2(GeV/c)^2$. Physics goals will be discussed and analysis status and strategy will be presented.