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Role of the Δ isobar in the reaction NN→NNπ near threshold

✍ Scribed by C. Hanhart; J. Haidenbauer; O. Krehl; J. Speth


Book ID
108440050
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
217 KB
Volume
444
Category
Article
ISSN
0370-2693

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Theoretical study of the NN → NNππ react
✍ L. Alvarez-Ruso; E. Oset; E. Hernández 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 1023 KB

We have developed a model for the NN --~ NNTrcr reaction and evaluated cross sections for the different charged channels. The low energy part of those channels where the pions can be in an isospin zero state is dominated by N\* excitation, driven by an isoscalar source recently found experimentally,