K → ππ decay amplitudes from the lattice
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Changhoan Kim; Norman H. Christ
📂
Article
📅
2003
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Elsevier Science
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English
⚖ 88 KB
In order to directly compute physical two-pion K-decay amplitudes using lattice methods we must prepare a two-pion state with non-zero relative momentum. Building upon a proposal of Lellouch and Liischer. wt= describe a finite-volume method to realize such a state as the lowest energy state of two p