Research
Searches for physics beyond the Standard Model, and the structure and spin of the nucleon and light nuclei.
The NPG's research is aimed at two primary areas: searches for physics beyond the Standard Model, and understanding the structure of the nucleon and light nuclei in terms of the strong interaction and spin degrees of freedom. Most of our experiments run at Jefferson Lab, supported by our own polarized target lab at UNH.
Beyond the Standard Model
Heavy Photon Search
A search for a new heavy vector boson—a “heavy” or “dark” photon—that could connect ordinary matter to a hidden sector containing dark matter. Located in Hall B at Jefferson Lab.
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Spin physics
Tensor Polarization Experiments
The Azz, T20 and b1 measurements with a tensor-polarized deuteron target, probing short-range correlations, the deuteron wave function and nuclear effects at the quark level.
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Instrumentation
Polarized Target Lab
Our Dynamic Nuclear Polarization lab at UNH, developing the solid tensor-polarized target for Jefferson Lab.
Read more →Other experiments
- The g2p experiment (spokesperson: Slifer) investigates the spin structure of the proton and how this affects the energy levels of hydrogen-like systems. The data was recently published in Nature Physics.
- The Isospin SRC experiment (spokesperson: Solvignon) used a tritium target to probe how short-range correlations between nucleons affect the structure of nuclei.
- Group members are part of the CLAS and CLAS12 collaborations in Hall B at Jefferson Lab, with experiments on color transparency, hadron formation, deeply virtual Compton scattering and the longitudinal spin structure of the nucleon.