Effective field theory calculations of NN → NNπ

2013/10/13 by V. Baru, Vadim Baru, C. Hanhart +3
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1142/s0218301314300045

68 pages, 23 figures, to be published in Int. J. Mod. Phys. E

arxiv created 2013/10/13 · openalex publication_date 2014/04/01 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this review, we present the recent advances for calculations of the reactions NN → NNπ using chiral effective field theory χEFT. Discussed are the next-to-next-to leading order (N 2 LO) loop contributions with nucleon and Delta-isobar for near threshold s-wave pion-production. Results of recent experimental pion-production data for energies close to the threshold are analyzed. Several particular applications are discussed: (i) it is shown how the measured charge symmetry (CS) violating pion-production reaction can be used to extract the strong interaction contribution to the proton–neutron mass difference; (ii) the role of NN → NNπ for the extraction of the pion–nucleon scattering lengths from pionic atoms data is illuminated.

Citations

• Partial-wave analysis ofp→p→→ppπ0data
• Muon Capture on the Deuteron -- The MuSun Experiment
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• One-loop analysis of the reaction πN→ππN
• Remarks on NN→NNπ beyond leading order
• Novel analysis of the decaysψ′→hcπ0andηc′→χc0π0
• How to extract theΛNscattering length from production reactions
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• Nucleon-nucleon elastic scattering to 3 GeV
• Meson production in nucleon?nucleon collisions close to the threshold
• Observation of the Charge Symmetry Breakingd+d→He<mml:mprescripts/><mml:none/>4+π0Reaction Near Threshold
• Polarization phenomena in the reactionNN→NNπnear threshold
• Role of heavy-meson exchange in pion production near threshold
• The reaction πN → ππN in a meson-exchange approach
• The Goldberger-Miyazawa-Oehme sum rule revisited
• Three-body interactions among nucleons and pions
• Orthonormalization procedure for chiral effective nuclear field theory
• Dispersion relation constrained partial wave analysis ofπNelastic andπN→ηNscattering data: The baryon spectrum
• Modern Theory of Nuclear Forces
• Infrared singularities and massive fields
• Chiral effective field theory and nuclear forces
• Charge Symmetry Breaking and QCD
• Chiral Dynamics in Nucleons and Nuclei
• Two-pion-exchange and other higher-order contributions to thepp→ppπ0reaction
• Threshold pp→ppπ0 up to one-loop accuracy
• Quark masses