Realistic Few-Body Physics in the $dd\to \alpha\pi^0$ Reaction

A. C. Fonseca; A. Gardestig; A. Nogga; C. Hanhart; C. J. Horowitz; G. A. Miller; J. A. Niskanen; U. van Kolck

Realistic Few-Body Physics in the ddto απ⁰ Reaction

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arxiv nucl-th/0602003 v1 pith:YJVP2PPP submitted 2006-02-01 nucl-th

Realistic Few-Body Physics in the ddto απ⁰ Reaction

A. Nogga , A. C. Fonseca , A. Gardestig , C. Hanhart , C. J. Horowitz , G. A. Miller , J. A. Niskanen , U. van Kolck This is my paper

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keywords alphareactionrealisticaccuratecalculationcharge-symmetry-breakingchiral-perturbation-theorycounting

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We use realistic two- and three-nucleon interactions in a hybrid chiral-perturbation-theory calculation of the charge-symmetry-breaking reaction $dd\to\alpha\pi^0$ to show that a cross section of the experimentally measured size can be obtained using LO and NNLO pion-production operators. This result supports the validity of our power counting scheme and demonstrates the necessity of using an accurate treatment of ISI and FSI.

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