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Rational approximation in the complex plane using a τ-method and computer algebra

✍ Scribed by Luc Rebillard


Book ID
110385652
Publisher
Springer US
Year
1997
Tongue
English
Weight
667 KB
Volume
16
Category
Article
ISSN
1017-1398

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The V−A sum rules and the operator produ
✍ B.L. Ioffe; K.N. Zyablyuk 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 898 KB

The operator product expansion (OPE) for the difference of vector and axial current correlators is analyzed for complex values of momentum q 2 . The vector and axial spectral functions, taken from hadronic τ -decay data, are treated with the help of Borel, gaussian and spectral moments sum rules. Th