Finite Volume Effects in Weak Hadronic Decays

Details Finite Volume Effects in Weak Hadronic Decays Finite Volume Effects in Weak Hadronic Decays

2001-11-20

arxiv.org/abs/hep-lat/0111033v1

Nucl.Phys.Proc.Suppl.109A:218-225,2002

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented by M. Testa at the Workshop on Lattice Hadron Physics (LHP2001), Cairns, Australia, 9-18 July 2001, 8 pages, re

Scientific paper

In this talk we discuss finite-volume computations of two-body hadronic decays below the inelastic threshold (e.g. $K\to\pi\pi$ decays). In particular we show how the relation between finite-volume matrix elements and physical amplitudes, recently derived by Lellouch and L\"uscher, can be extended to all elastic states under the inelastic threshold. We also provide a derivation of the L\"uscher quantization condition directly in quantum field theory.

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