On lattice computations of $K^{+} \to π^{+} π^{0}$ decay at $m_{K} {= 2 m}_{π}$

30 September 1998

journal article
Published by American Physical Society (APS) in Physical Review D

Vol. 58 (9)
https://doi.org/10.1103/physrevd.58.097503

Abstract

We use one-loop chiral perturbation theory to compare potential lattice computations of the K+ --> pi+ pi0 decay amplitude at m_K=2m_pi with the experimental value. We find that the combined one-loop effect due to this unphysical pion to kaon mass ratio and typical finite volume effects is still of order minus 20-30%, and appears to dominate the effects from quenching

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Version 1, 1998-05-29, ArXiv

This publication has 9 references indexed in Scilit:

$K^{+} \to π^{+} π^{0}$ decay amplitude with the Wilson quark action in quenched lattice QCD
Physical Review D, 1998
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Physical Review D, 1998
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On lattice computations ofK+→π+π0decay atmK=2mπ

Abstract

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On lattice computations of $K^{+} \to π^{+} π^{0}$ decay at $m_{K} {= 2 m}_{π}$