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K+→π+π0 decays on finite volumes and at next-to-leading order in the chiral expansion

✍ Scribed by C.-J.D. Lin; G. Martinelli; E. Pallante; C.T. Sachrajda; G. Villadoro


Book ID
117554621
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
427 KB
Volume
650
Category
Article
ISSN
0550-3213

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K+ → π+π0 decays at next-to-leading orde
✍ C.-J.D. Lin; G. Martinelli; E. Pallante; C.T. Sachrajda; G. Villadoro 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 115 KB

We present the ingredients for determining Kf --t 7r+7r" matrix elements via the combination of lattice QCD and chiral perturbation theory (xPT). By simulating these matrix elements at unphysical kinematics, it is possible to determine all the low-energy constants (LECs) for constructing the physica