Physics at Virginia

I will review the new cross section and charge radius results from the Jefferson Lab’s “LEDEX” experiment. This experiment includes measurements on several light nuclei, hydrogen, deuteron, lithium, boron, and carbon with beam energies down to 360 MeV and spectrometer angles down to 12.5 degrees. To test our ability to measure absolute cross sections, as well as our ability to extract the charge radius, we first testd our technique against the extremely well measured 12C case and found excellent agreement using the Fourier-Bessel parameterization. Our new results on boron (2.40 ± 0.12 fm) and lithium (2.52±0.05 fm) are in nice agreement with model independent variational monte carlo calculations. For the lightest nuclei, we clearly see the limits of this technique and will show why for those nuclei the radius is not determined from a Fourier-Bessel technique but by determinining the slope at q2 = 0.

Nuclear Physics Seminar
Tuesday, January 26, 2016
3:30 PM
Physics Building, Room 204
Note special room.

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