English

K \to \pi\pi decay amplitudes from the lattice

High Energy Physics - Lattice 2009-11-07 v1
Authors: Changhoan Kim , Norman H. Christ
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Abstract

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 L\"uscher, we describe a finite-volume method to realize such a state as the lowest energy state of two pions.

Keywords

K decay pion lattice finite volume Lellouch-Lüscher method

Cite

@article{arxiv.hep-lat/0210003,
  title  = {K \to \pi\pi decay amplitudes from the lattice},
  author = {Changhoan Kim and Norman H. Christ},
  journal= {arXiv preprint arXiv:hep-lat/0210003},
  year   = {2009}
}

Comments

3 pages, Lattice 2002(WME)

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