scholarly journals Two Loop Partially Quenched and Finite Volume Chiral Perturbation Theory Results

2005 ◽  
Author(s):  
Johan Bijnens ◽  
Niclas Danielsson ◽  
Karim Ghorbani ◽  
Timo Lahde
Keyword(s):  
Perturbation Theory ◽  
Finite Volume ◽  
Chiral Perturbation Theory ◽  
Chiral Perturbation

scholarly journals ChPT loops for the lattice: pion mass and decay constant, HVP at finite volume and nn̅-oscillations

2018 ◽  
Vol 175 ◽  
pp. 06011
Author(s):  
Johan Bijnens
Keyword(s):  
Perturbation Theory ◽  
Finite Volume ◽  
Chiral Perturbation Theory ◽  
Vacuum Polarization ◽  
Decay Constant ◽  
Pion Mass ◽  
Loop Order ◽  
Chiral Perturbation ◽  
Lattice Calculations

I present higher loop order results for several calculations in Chiral perturbation Theory. 1) Two-loop results at finite volume for hadronic vacuum polarization. 2) A three-loop calculation of the pion mass and decay constant in two-flavour ChPT. For the pion mass all needed auxiliary parameters can be determined from lattice calculations of ππ-scattering. 3) Chiral corrections to neutron-anti-neutron oscillations.

scholarly journals Finite-volume meson propagators in quenched chiral perturbation theory

2002 ◽  
Vol 106-107 ◽  
pp. 772-774 ◽  
Author(s):  
P.H. Damgaard ◽  
M.C. Diamantini ◽  
P. Hernández ◽  
K. Jansen
Keyword(s):  
Perturbation Theory ◽  
Finite Volume ◽  
Chiral Perturbation Theory ◽  
Chiral Perturbation
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