Realistic few-body physics in the dd -&gt; alpha pi0 reaction

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

doi:10.1016/j.physletb.2006.04.058

Journal Article

Realistic few-body physics in the dd -> alpha pi0 reaction

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

2006
North-Holland Publ. Amsterdam

Physics letters / B 639, 465 (2006) [10.1016/j.physletb.2006.04.058]

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Please use a persistent id in citations: http://hdl.handle.net/2128/10594 doi:10.1016/j.physletb.2006.04.058

Abstract: We use realistic two- and three-nucleon interactions in a hybrid chiral-perturbation-theory calculation of the charge-symmetry-breaking reaction dd -> 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. It also becomes evident that a full calculation requires the use of consistent chiral nuclear forces to overcome the visible model dependence of our result. (c) 2006 Elsevier B.V. All rights reserved.

Keyword(s): deuteron deuteron: interaction ; helium: production ; pi0: production ; channel cross section ; approximation: plane wave ; perturbation theory: chiral ; charge: symmetry breaking ; numerical calculations: interpretation of experiments