Exclusive Measurements of pp -> dpi+pi0: Double-Pionic Fusion without ABC Effect

Details Exclusive Measurements of pp -> dpi+pi0: Double-Pionic Fusion without ABC Effect Exclusive Measurements of pp -> dpi+pi0: Double-Pionic Fusion without ABC Effect

2009-10-06

arxiv.org/abs/0910.0995v2

Phys.Lett.B684:110-113,2010; Erratum-ibid.B702:312-313,2011

Physics

Nuclear Physics

Nuclear Experiment

Scientific paper

10.1016/j.physletb.2009.12.061 1

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.

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