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π–π scattering and chiral symmetry

✍ Scribed by J.E. Ribeiro


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
120 KB
Volume
680
Category
Article
ISSN
0375-9474

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📜 SIMILAR VOLUMES


Chiral symmetry, ππ scattering and aμ
✍ Gilberto Colangelo 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 193 KB

The hadronic vacuum polarization contributions to (g -2)μ below one GeV are dominated by the two-pion contribution. The latter can be described by the electromagnetic pion form factor. Unitarity and analyticity strongly constrain the latter. Unitarity, e.g., implies that the phase of the form factor