The University of Southampton
×
Filter your search:
University of Southampton Institutional Repository

Extraction of K → ππ matrix elements with Wilson fermions

Extraction of K → ππ matrix elements with Wilson fermions
Extraction of K → ππ matrix elements with Wilson fermions
We present the status of a lattice calculation for the K → ππ matrix elements of the ΔS = 1 effective weak Hamiltonian, directly with two pion in the final state. We study the energy shift of two pion in a finite volume both in the I = 0 and I = 2 channels. We explain a method to avoid the Goldstone pole contamination in the computation of renormalization constants for ΔI = 32 operators. Finally we show some preliminary results for the matrix elements of ΔI = 12 operators. Our quenched simulation is done at β = 6.0, on a 243 × 64 lattice.
0920-5632
323-325
Boucaud, P.
977194e8-8ad2-4607-bea0-456dcc30c39e
Giménez, V.
e5d3ad14-ff18-4162-854f-e339b7075234
Lin, C.-J.D.
721a3828-3d49-4ede-9932-4effda70a540
Lubicz, V.
8161bebb-280a-42e1-bba7-f445c9e2754e
Martinelli, G.
3949da7a-7efe-4ebd-b1f7-92f1ca150d66
Papinutto, M.
f8d56f31-6710-4584-87ce-c5761abb6234
Rapuano, F.
7d7282fb-0828-4c8d-9212-d47ce47b0b8d
Sachrajda, C.T.
bb6abbe6-e1a9-44c7-b069-4628fcd3136c
SPQCDR Collaboration, None
faf42691-ae25-410b-bc13-119d842e7c8e
Boucaud, P.
977194e8-8ad2-4607-bea0-456dcc30c39e
Giménez, V.
e5d3ad14-ff18-4162-854f-e339b7075234
Lin, C.-J.D.
721a3828-3d49-4ede-9932-4effda70a540
Lubicz, V.
8161bebb-280a-42e1-bba7-f445c9e2754e
Martinelli, G.
3949da7a-7efe-4ebd-b1f7-92f1ca150d66
Papinutto, M.
f8d56f31-6710-4584-87ce-c5761abb6234
Rapuano, F.
7d7282fb-0828-4c8d-9212-d47ce47b0b8d
Sachrajda, C.T.
bb6abbe6-e1a9-44c7-b069-4628fcd3136c
SPQCDR Collaboration, None
faf42691-ae25-410b-bc13-119d842e7c8e

Boucaud, P., Giménez, V., Lin, C.-J.D., Lubicz, V., Martinelli, G., Papinutto, M., Rapuano, F., Sachrajda, C.T. and SPQCDR Collaboration, None (2002) Extraction of K → ππ matrix elements with Wilson fermions. Nuclear Physics B - Proceedings Supplements, 106-107, 323-325. (doi:10.1016/S0920-5632(01)01702-9).

Record type: Article

Abstract

We present the status of a lattice calculation for the K → ππ matrix elements of the ΔS = 1 effective weak Hamiltonian, directly with two pion in the final state. We study the energy shift of two pion in a finite volume both in the I = 0 and I = 2 channels. We explain a method to avoid the Goldstone pole contamination in the computation of renormalization constants for ΔI = 32 operators. Finally we show some preliminary results for the matrix elements of ΔI = 12 operators. Our quenched simulation is done at β = 6.0, on a 243 × 64 lattice.

This record has no associated files available for download.

More information

Published date: March 2002
Learn more about Physics & Astronomy research

Identifiers

Local EPrints ID: 57102
URI: http://eprints.soton.ac.uk/id/eprint/57102
DOI: doi:10.1016/S0920-5632(01)01702-9
ISSN: 0920-5632
PURE UUID: 857b25e0-dda4-4a0d-8f84-ddb295c85f70

Catalogue record

Date deposited: 14 Aug 2008
Last modified: 15 Mar 2024 11:05

Export record

Altmetrics

Contributors

Author: P. Boucaud
Author: V. Giménez
Author: C.-J.D. Lin
Author: V. Lubicz
Author: G. Martinelli
Author: M. Papinutto
Author: F. Rapuano
Author: C.T. Sachrajda
Author: None SPQCDR Collaboration

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Library staff additional information
Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×