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

S. Kölling, E. Epelbaum, H. Krebs, and U.-G. Meißner

Phys. Rev. C 84, 054008 – Published 28 November 2011

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.

Received 16 September 2011

DOI:https://doi.org/10.1103/PhysRevC.84.054008

Authors & Affiliations

S. Kölling^1,2,*, E. Epelbaum^1,†, H. Krebs^1,‡, and U.-G. Meißner^2,3,§

¹Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
²Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany
³Institut für Kernphysik (IKP-3), Institut for Advanced Simulation (IAS-4), and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany

^*s.koelling@fz-juelich.de
^†evgeny.epelbaum@rub.de
^‡hermann.krebs@rub.de
^§meissner@hiskp.uni-bonn.de

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Vol. 84, Iss. 5 — November 2011

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Physical Review C

covering nuclear physics

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

S. Kölling, E. Epelbaum, H. Krebs, and U.-G. Meißner

Phys. Rev. C 84, 054008 – Published 28 November 2011

Abstract

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review C

covering nuclear physics

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

S. Kölling, E. Epelbaum, H. Krebs, and U.-G. Meißner

Phys. Rev. C 84, 054008 – Published 28 November 2011

Abstract

Authors & Affiliations

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