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Threshold neutral pion photoproduction off the tri-nucleon to O(q4)

  • Mark Lenkewitz
  • Evgeny Epelbaum
  • H. -W. Hammer
  • Ulf-G. Meißner
Regular Article - Theoretical Physics

Abstract

We calculate the electromagnetic neutral pion production off tri-nucleon bound states (3H, 3He) at threshold in chiral nuclear effective field theory to fourth order in the standard heavy baryon counting. We show that the fourth-order two-nucleon corrections to the S-wave multipoles at threshold are very small. This implies that a precise measurement of the S-wave cross section for neutral pion production off 3He allows for a stringent test of the chiral perturbation theory prediction for the S-wave electric multipole \(E_{0+}^{\pi^0 n}\).

Keywords

Form Factor Theory Error Pion Production Neutral Pion Monte Carlo Integration 
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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Mark Lenkewitz
    • 1
  • Evgeny Epelbaum
    • 2
  • H. -W. Hammer
    • 1
  • Ulf-G. Meißner
    • 1
    • 3
  1. 1.Universität BonnHelmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical PhysicsBonnGermany
  2. 2.Ruhr-Universität BochumInstitut für Theoretische Physik IIBochumGermany
  3. 3.Forschungszentrum Jülich, Institut für Kernphysik (IKP-3)Institute for Advanced Simulation (IAS-4) and Jülich Center for Hadron PhysicsJülichGermany

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