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Charge symmetry breaking in np-->dpi(0) |
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| Authors: | Opper A K Korkmaz E Hutcheon D A Abegg R Davis C A Finlay R W Green P W Greeniaus L G Jordan D V Niskanen J A O'Rielly G V Porcelli T A Reitzner S D Walden P L Yen S |
| Affiliation: | Ohio University, Athens, Ohio 45701, USA. opper@ohiou.edu |
| Abstract: | The forward-backward asymmetry in np-->dpi(0), which must be zero in the center-of-mass system if charge symmetry is respected, has been measured to be [17.2+/-8.0(stat)+/-5.5(syst)]x10(-4), at an incident neutron energy of 279.5 MeV. This observable is compared to recent chiral effective field theory calculations, with implications regarding the du quark mass difference. |
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