Two-nucleon systems in a finite volume. II. 3S13D1^3S_1-^3D_1 coupled channels and the deuteron

Sep 13, 2013
22 pages
Published in:
  • Phys.Rev.D 88 (2013) 11, 114507
  • Published: Dec 10, 2013
e-Print:
Report number:
  • INT-PUB-13-037,
  • NT@UW-13-025,
  • JLAB-THY-13-1824

Citations per year

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Abstract: (APS)
The energy spectra of two nucleons in a cubic volume provide access to the two phase shifts and one mixing angle that define the S matrix in the S13-D13 coupled channels containing the deuteron. With the aid of recently derived energy quantization conditions for such systems, and the known scattering parameters, these spectra are predicted for a range of volumes. It is found that extractions of the infinite-volume deuteron binding energy and leading scattering parameters, including the S-D mixing angle at the deuteron pole, are possible from lattice QCD calculations of two-nucleon systems with boosts of |P|≤2πL3 in volumes with 10  fm≲L≲14  fm. The viability of extracting the asymptotic D/S ratio of the deuteron wave function from lattice QCD calculations is discussed.
Note:
  • 31 pages, 17 figures
  • 12.38.Gc
  • 12.38.-t
  • 14.20.Dh
  • deuteron: binding energy
  • deuteron: wave function
  • energy: quantization
  • nucleon nucleon
  • lattice field theory
  • quantum chromodynamics
  • coupled channel