The University of Southampton
University of Southampton Institutional Repository

Hadronic form factors in lattice QCD at small and vanishing momentum transfer

Flynn, J.M., Juttner, A., Sachrajda, C.T., Boyle, P.A. and Zanotti, J.M (2007) Hadronic form factors in lattice QCD at small and vanishing momentum transfer Journal of High Energy Physics, 5, pp. 16-37. (doi:10.1088/1126-6708/2007/05/016).

Record type: Article

Abstract

The introduction of partially twisted boundary conditions allows weak and electromagnetic form factors to be evaluated at specified values of the hadronic momenta (and hence momentum transfers) in lattice simulations. We present and demonstrate this technique for the computation of the K ? ? semileptonic form factor at zero momentum transfer and for the electromagnetic form factor of the pion at arbitrarily small momentum transfers. These exploratory computations are carried out in full QCD with 3 flavours of sea quarks, but with only two values of mu = md which limits our ability to perform the chiral extrapolations. The results should therefore be viewed primarily as a demonstration of the feasibility of the method. For the K ? ? form factor we compare the new technique to the conventional approach and for the pion form factor we assess our results for very small momentum transfer with the help of chiral perturbation theory.

Full text not available from this repository.

More information

Published date: 2007
Keywords: kaon physics, electromagnetic processes and properties, weak decays, lattice QCD

Identifiers

Local EPrints ID: 57115
URI: http://eprints.soton.ac.uk/id/eprint/57115
PURE UUID: 6061f717-3b66-4fec-aa38-4ebf616ddf68
ORCID for J.M. Flynn: ORCID iD orcid.org/0000-0002-6280-1677

Catalogue record

Date deposited: 14 Aug 2008
Last modified: 17 Jul 2017 14:29

Export record

Altmetrics

Contributors

Author: J.M. Flynn ORCID iD
Author: A. Juttner
Author: C.T. Sachrajda
Author: P.A. Boyle
Author: J.M Zanotti

University divisions

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

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.

×