Speaker
Efrain Segarra
(Massachusetts Institute of Technology)
Description
Approximately 20% of nucleons in a nucleus are localized in short-range correlated (SRC) pairs, with relative momentum that exceeds the nuclear fermi momentum. Both inclusive and exclusive electron scattering experiments have confirmed that this pairing is a universal phenomenon, and that high-momentum nucleons always have a correlated partner. However, little is known about the state of the residual nucleus after hard knock-out reactions
Nuclear beams at the Joint Institute for Nuclear Research offer unique opportunities to perform the fully exclusive measurements of Short-Range Correlations (SRC) via hard nucleon knock-out in inverse kinematics. Our recent run in December 2017 used a 4 GeV/c/u 12C beam on a H target to knockout a proton from an SRC pair in the carbon nucleus, and detect in coincidence the target-scattered proton along with the residual A-2 system. For the first time, we can begin to understand the state of the nucleus when a SRC pair is formed.
In my talk, I will present briefly past efforts to study SRC pairs, the aspects of inverse kinematics to how we study SRC pairs, the theoretical motivation for fully exclusive SRC measurements, and the physical setup with preliminary analysis from our recent run.
Primary author
Efrain Segarra
(Massachusetts Institute of Technology)
