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Three-flavor partially quenched chiral perturbation theory at NNLO for meson masses and decay constants

Bijnens, Johan LU orcid ; Danielsson, Niclas LU and Lähde, Timo LU (2006) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 73(7: 074509).
Abstract
We discuss partially quenched chiral perturbation theory (PQ chi PT) and possible fitting strategies to lattice QCD data at next-to-next-to-leading order (NNLO) in the mesonic sector. We also present a complete calculation of the masses of the charged pseudoscalar mesons, in the supersymmetric formulation of PQ chi PT. Explicit analytical results are given for up to three nondegenerate sea-quark flavors, along with the previously unpublished expression for the pseudoscalar meson decay constant for three nondegenerate sea-quark flavors. The numerical analysis in this paper demonstrates that the corrections at NNLO are sizable, as expected from earlier work.
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D (Particles, Fields, Gravitation and Cosmology)
volume
73
issue
7: 074509
publisher
American Physical Society
external identifiers
  • wos:000237158500055
  • scopus:33646354172
ISSN
1550-2368
DOI
10.1103/PhysRevD.73.074509
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical High Energy Physics (000006112), Mathematical Physics (Faculty of Technology) (011040002)
id
8507634c-a2cb-4d3d-8f3b-eb1a34894892 (old id 410671)
date added to LUP
2016-04-01 12:06:55
date last changed
2021-02-17 01:24:38
@article{8507634c-a2cb-4d3d-8f3b-eb1a34894892,
  abstract     = {We discuss partially quenched chiral perturbation theory (PQ chi PT) and possible fitting strategies to lattice QCD data at next-to-next-to-leading order (NNLO) in the mesonic sector. We also present a complete calculation of the masses of the charged pseudoscalar mesons, in the supersymmetric formulation of PQ chi PT. Explicit analytical results are given for up to three nondegenerate sea-quark flavors, along with the previously unpublished expression for the pseudoscalar meson decay constant for three nondegenerate sea-quark flavors. The numerical analysis in this paper demonstrates that the corrections at NNLO are sizable, as expected from earlier work.},
  author       = {Bijnens, Johan and Danielsson, Niclas and Lähde, Timo},
  issn         = {1550-2368},
  language     = {eng},
  number       = {7: 074509},
  publisher    = {American Physical Society},
  series       = {Physical Review D (Particles, Fields, Gravitation and Cosmology)},
  title        = {Three-flavor partially quenched chiral perturbation theory at NNLO for meson masses and decay constants},
  url          = {http://dx.doi.org/10.1103/PhysRevD.73.074509},
  doi          = {10.1103/PhysRevD.73.074509},
  volume       = {73},
  year         = {2006},
}