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arXiv · 0907.3911

p-Wave pion production from nucleon-nucleon collisions

V. Baru·E. Epelbaum·J. Haidenbauer·C. Hanhart·A. E. Kudryavtsev·V. Lensky·U. -G. Meissner
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Abstract

We investigate p-wave pion production in nucleon-nucleon collisions up to next-to-next-to-leading order in chiral effective field theory. In particular, we show that it is possible to describe simultaneously the p-wave amplitudes in the $pn\to ppπ^-$, $pp\to pnπ^+$, $pp\to dπ^+$ channels by adjusting a single low-energy constant accompanying the short-range operator which is available at this order. This study provides a non-trivial test of the applicability of chiral effective field theory to reactions of the type $NN\to NNπ$.

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V. Baru, E. Epelbaum, J. Haidenbauer, C. Hanhart, A. E. Kudryavtsev, V. Lensky, U. -G. Meissner. 2009-10-28. p-Wave pion production from nucleon-nucleon collisions. https://doi.org/10.1103/physrevc.80.044003

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