Initial-State Coulomb Interaction in the dd -> alpha pi^0 Reaction

Abstract

The effects of initial-state Coulomb interactions in the charge-symmetry-breaking reaction dd -> alpha pi^0 are investigated within a previously published formalism. This is a leading order effect in which the Coulomb interaction between the two initial state protons leads to the breakup of the two deuterons into a continuum state that is well connected to the final alpha pi^0 state by the strong emission of a pion. As a first step, we use a simplified set of d and alpha wave functions and a plane-wave approximation for the initial dd state. This Coulomb mechanism, by itself, yields cross sections that are much larger than the experimental ones, and which are comparable in size to the contributions from other mechanisms. Inclusion of this mechanism is therefore necessary in a realistic calculation.

10 pages, 2 postscript figures, 2 tables

References in corpus (4)

• Charge Symmetry Breaking and QCD
• Towards a field theoretic understanding of NN->NNpi
• New calculation schemes for proton-deuteron scattering including the Coulomb interaction
• Realistic Few-Body Physics in the $dd\to \alpha {\pi }^0$ Reaction

Cited by in corpus (7)

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• Threshold pion production in proton-proton collisions at NNLO in chiral EFT
• Investigation of the dd -> 3He n π0 reaction with the FZ Jülich WASA-at-COSY facility
• Importance of d-wave contributions in the charge symmetry breaking reaction $dd\to {}^4\text{He}{\pi }^0$
• Non-Strange Meson Production with Hadronic Probes
• Ernest Henley's Isospin and the Ensuing Progress