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Matrix elements of Delta(I) = 3/2 K -> pi pi decays

Matrix elements of Delta(I) = 3/2 K -> pi pi decays
Matrix elements of Delta(I) = 3/2 K -> pi pi decays
We present a numerical computation of matrix elements of ?I = 3/2 K ? ?? decays by using Wilson fermions. In order to extrapolate to the physical point we work at unphysical kinematics and we resort to Chiral Perturbation Theory at the next-to-leading order. In particular we explain the case of the electroweak penguins 07,8 which can contribute significantly in the theoretical prediction of sol|??/?. The study is done at ? = 6.0 on a 243 × 64 lattice.
0920-5632
314-316
Boucaud, Ph.
69214333-d5b8-4ca8-98e3-c9021f4c59ac
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
Sachrajda, C.T.
bb6abbe6-e1a9-44c7-b069-4628fcd3136c
SPQCDR Collaboration, None
faf42691-ae25-410b-bc13-119d842e7c8e
Boucaud, Ph.
69214333-d5b8-4ca8-98e3-c9021f4c59ac
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
Sachrajda, C.T.
bb6abbe6-e1a9-44c7-b069-4628fcd3136c
SPQCDR Collaboration, None
faf42691-ae25-410b-bc13-119d842e7c8e

Boucaud, Ph., Giménez, V., Lin, C.-J.D., Lubicz, V., Martinelli, G., Papinutto, M., Sachrajda, C.T. and SPQCDR Collaboration, None (2004) Matrix elements of Delta(I) = 3/2 K -> pi pi decays. Nuclear Physics B - Proceedings Supplements, 129-130, 314-316. (doi:10.1016/S0920-5632(03)02567-2).

Record type: Article

Abstract

We present a numerical computation of matrix elements of ?I = 3/2 K ? ?? decays by using Wilson fermions. In order to extrapolate to the physical point we work at unphysical kinematics and we resort to Chiral Perturbation Theory at the next-to-leading order. In particular we explain the case of the electroweak penguins 07,8 which can contribute significantly in the theoretical prediction of sol|??/?. The study is done at ? = 6.0 on a 243 × 64 lattice.

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More information

Published date: March 2004
Additional Information: Lattice 2003
Learn more about Physics & Astronomy research

Identifiers

Local EPrints ID: 57104
URI: http://eprints.soton.ac.uk/id/eprint/57104
DOI: doi:10.1016/S0920-5632(03)02567-2
ISSN: 0920-5632
PURE UUID: 201a9a5b-5fb1-4e34-bb36-31a7df1e4380

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

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Contributors

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

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