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Meson form factors and the quark-level linear σ model

✍ Scribed by Michael D. Scadron; Frieder Kleefeld; George Rupp; Eef van Beveren


Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
203 KB
Volume
724
Category
Article
ISSN
0375-9474

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Left-hand singularities, hadron form fac
✍ Zhiguang Xiao; Hanqing Zheng 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 214 KB

By applying analyticity and single-channel unitarity we derive a new formula which is useful to analyze the role of the left-hand singularities in hadron form factors and in the determination of the resonance parameters. Chiral perturbation theory is used to estimate the left-hand cut effects in ππ