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High Energy Physics - Lattice

arXiv:hep-lat/0501014 (hep-lat)
[Submitted on 18 Jan 2005]

Title:Decay Constants of Pseudoscalar Mesons to Two Loops in Three-Flavor Partially Quenched $χ$PT

Authors:Johan Bijnens, Timo A. Lahde
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Abstract: This paper presents a first study of the decay constants of the charged, or flavor-off-diagonal, pseudoscalar mesons to two loops for three flavors of sea quarks, in Partially Quenched Chiral Perturbation Theory (PQ$\chi$PT). Explicit analytical expressions up to ${\cal O}(p^6)$ in the momentum expansion are given. The calculations have been performed within the supersymmetric formulation of PQ$\chi$PT. We also present some numerical results to indicate the size of the corrections.
Comments: 14p
Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph)
Report number: LU TP 05-1
Cite as: arXiv:hep-lat/0501014
  (or arXiv:hep-lat/0501014v1 for this version)
  https://doi.org/10.48550/arXiv.hep-lat/0501014
Journal reference: Phys.Rev. D71 (2005) 094502
Related DOI: https://doi.org/10.1103/PhysRevD.71.094502

Submission history

From: Johan Bijnens [view email]
[v1] Tue, 18 Jan 2005 15:03:17 UTC (38 KB)
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