Advanced

K-l3 decays in chiral perturbation theory

Bijnens, Johan LU and Talavera, P (2003) In Nuclear Physics, Section B 669(1-2). p.341-362
Abstract
The process K-l3 is calculated to two-loop order (p(6)) in chiral perturbation theory (ChPT) in the isospin conserved case. We present expressions suitable for use with previous work in two-loop ChPT where the order p(4) parameters (L-i(r)) were determined from experiment. We point out that all the order p(6) parameters (C-i(r)) that appear in the value of f(+)(0) relevant for the determination of V-us can be determined from K-l3 measurements via the slope and the curvature of the scalar form-factor. As by product we update the value of the CKM matrix element V-us. (C) 2003 Elsevier B.V. All rights reserved.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics, Section B
volume
669
issue
1-2
pages
341 - 362
publisher
Elsevier
external identifiers
  • wos:000185587500014
  • scopus:0042384377
ISSN
0550-3213
DOI
10.1016/S0550-3213(03)00581-9
language
English
LU publication?
yes
id
ef333eff-cdb9-4121-82da-03961093cb20 (old id 299694)
date added to LUP
2007-08-24 08:16:43
date last changed
2018-09-23 04:22:59
@article{ef333eff-cdb9-4121-82da-03961093cb20,
  abstract     = {The process K-l3 is calculated to two-loop order (p(6)) in chiral perturbation theory (ChPT) in the isospin conserved case. We present expressions suitable for use with previous work in two-loop ChPT where the order p(4) parameters (L-i(r)) were determined from experiment. We point out that all the order p(6) parameters (C-i(r)) that appear in the value of f(+)(0) relevant for the determination of V-us can be determined from K-l3 measurements via the slope and the curvature of the scalar form-factor. As by product we update the value of the CKM matrix element V-us. (C) 2003 Elsevier B.V. All rights reserved.},
  author       = {Bijnens, Johan and Talavera, P},
  issn         = {0550-3213},
  language     = {eng},
  number       = {1-2},
  pages        = {341--362},
  publisher    = {Elsevier},
  series       = {Nuclear Physics, Section B},
  title        = {K-l3 decays in chiral perturbation theory},
  url          = {http://dx.doi.org/10.1016/S0550-3213(03)00581-9},
  volume       = {669},
  year         = {2003},
}