Probing SRC in inverse kinematics


  Göran Johansson  
Tel Aviv University

Short Range Correlated (SRC) pairs are two close nucleons in the atomic nucleus. Most of the SRC pairs are a proton and a neutron. They have high individual and relative momentum but low common center-of-mass momentum. Low and high are in comparison with the nuclear Fermi momentum. The pairs dominates the high tail of the nucleon-momentum distribution in nuclei.
In the last decade, the experimental studies of SRC were done using high-energy and large-intensity electrons and protons beams.
We present here a new experimental approach to study SRC in \textit{inverse kinematics} using a $^{12}\rm C$ beam of 4 GeV/c/u aiming at a stationary $\rm H_2$ target. This allows a \textit{fully-exclusive} measurement including the detection and studying of the residual A-2 nuclear system after the 2N-SRC knockout. The first measurement was done during spring 2018 in the BM@N nuclotron at the Joint Institute of Nuclear Research (JINR), Dubna, Russia. In this talk we will present some new preliminary results from that measurement.