Exclusive measurements of the reaction pp -> dpi+pi0 have been carried out at T_p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi+pi0 channel exhibits no enhancement at low invariant pipi masses, i. e. no ABC effect. The differential distributions are in agreement with the conventional t-channel Delta-Delta excitation process, which also accounts for the observed energy dependence of the total cross section. This is an update of a previously published version -- see important note at the end of the article.

翻译：对反应pp - > dpi+pi0的排他性测量已在T_p = 1.1 GEV中进行,在使用WASA探测器的 CELSIUS 储存圈中进行。等离子体pi+pi0 频道显示,低挥发性pipi质量(即无ABC效应)没有增强。差分分布与传统T-tnel Delta-Delta Excurence 过程一致,该过程也说明了总截面的观测能量依赖性。这是对以前出版版本的更新 -- -- 见文章结尾的重要注释。