Using K0p−→p− transitions to compute K →(pp)I=0 decay amplitudes at NLO in the chiral expansion


Kim, Changhoan and Sachrajda, Christopher (2007) Using K0p−→p− transitions to compute K →(pp)I=0 decay amplitudes at NLO in the chiral expansion. In, Proceedings of the XXV International Symposium on Lattice Field Theory. Trieste, IT, Scuola Internaziole Superiore di Studi Avanzati (SISSA), 1-7. (Proceedings of Science).

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Description/Abstract

It is proposed to compute matrix elements for the (unphysical) K0p− →p− transition to determine
the next-to-leading order low energy constants of the weak chiral Lagrangian. This allows
us to evaluate K →(pp )I=0 decay amplitudes at this level of precision. This approach has several
significant advantages over the use of K →pp transitions, most notably the elimination of
s-channel disconnected diagrams and the use of fewer inversions

Item Type: Book Section
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Subjects: Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 57352
Date Deposited: 07 Aug 2008
Last Modified: 27 Mar 2014 18:39
Publisher: Scuola Internaziole Superiore di Studi Avanzati (SISSA)
URI: http://eprints.soton.ac.uk/id/eprint/57352

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