Journal
PHYSICAL REVIEW C
Volume 89, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.065211
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Funding
- DFG [SFB/TR 16]
- European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter under the Seventh Framework Programme of the EU [283286]
- ERC [259218 NUCLEAREFT]
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The reaction pi N -> pi pi N is studied at tree level up to next-to-leading order in the framework of manifestly covariant baryon chiral perturbation theory with explicit Delta(1232) degrees of freedom. Using total cross-section data to determine the relevant low-energy constants, predictions are made for various differential as well as total cross sections at higher energies. A detailed comparison of results based on the heavy-baryon and relativistic formulations of chiral perturbation theory with and without explicit Delta degrees of freedom is given.
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