Two-nucleon electromagnetic current in chiral effective field theory: one-pion exchange and short-range contributions

Abstract

We derive the leading one-loop contribution to the one-pion exchange and short-range two-nucleon electromagnetic current operator in the framework of chiral effective field theory. The derivation is carried out using the method of unitary transformation. Explicit results for the current and charge densities are given in momentum and coordinate space.

22 pages, 5 figures

References in corpus (10)

• Modern Theory of Nuclear Forces
• Subleading contributions to the chiral three-nucleon force I: long-range terms
• Electromagnetic Currents and Magnetic Moments in $\chi$EFT
• Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation
• Electromagnetic two-body currents of one- and two-pion range
• The two-nucleon electromagnetic charge operator in chiral effective field theory ($\chi$EFT) up to one loop
• Four-nucleon force using the method of unitary transformation
• Chiral effective theory predictions for deuteron form factor ratios at low Q^2
• Relativity constraints on the two-nucleon contact interaction
• Signatures of the chiral two-pion exchange electromagnetic currents in the 2H and 3He photodisintegration reactions

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