Inclusive Short-range Correlation Measurement with 3H and 3He at Jefferson Lab
ORAL
Abstract
In a classical view the nucleon-nucleon potential has a strong repulsive core. When a two-nucleon (sub)system falls into this range, they will interact strongly and move away from each other with large momentum. In electron Quasi-elastic(QE) scattering, these so-called short-range correlation(SRC) pairs in nuclei produce events with nucleon initial momentum above the Fermi level.
Previous exclusive QE measurements reported a neutron-proton pair (isosinglet) dominance in high-momentum nucleons. Experiment E12-11-112 at JLab Hall A is designed to check this isospin dependence of SRC by taking the ratio of 3H to 3He cross section at 1.5<xbj<2 where the high-momentum nucleons dominate. The first two run periods (December 2017, and May 2018) collected 3H, 3He, and 2H QE data with 2.2 GeV electron beam at Q2=0.4 - 1 GeV2. The third run period (October 2018) is planned to collect 1<xbj<3 data at Q2=1.4 GeV2.
In this talk I will show the experiment design and the status of the data analysis.
Previous exclusive QE measurements reported a neutron-proton pair (isosinglet) dominance in high-momentum nucleons. Experiment E12-11-112 at JLab Hall A is designed to check this isospin dependence of SRC by taking the ratio of 3H to 3He cross section at 1.5<xbj<2 where the high-momentum nucleons dominate. The first two run periods (December 2017, and May 2018) collected 3H, 3He, and 2H QE data with 2.2 GeV electron beam at Q2=0.4 - 1 GeV2. The third run period (October 2018) is planned to collect 1<xbj<3 data at Q2=1.4 GeV2.
In this talk I will show the experiment design and the status of the data analysis.
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Presenters
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Shujie Li
University of New Hampshire
Authors
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Shujie Li
University of New Hampshire