Speaker
Johan Bijnens
(Lund University)
Description
The talk will give an overview of the work done recently in calculating leading logarithms to high order and the underlying methods used. The method used [1,2] will be done and an over view of applications which have been done to very high order in the massless case and up to seven loops in the massive case [3,4,5]. The talk will concentrate mainly on the new aspects needed for the nucleon sector where we can also obtain subleading logarithms in some cases. We also present some numerical results [5].
References
[1] Leading Logarithms in the Massive O(N) Nonlinear Sigma Model, Johan Bijnens, Lisa Carloni, Nucl.Phys. B827 (2010) 237-255
[2] Chiral Logarithms in the Massless Limit Tamed, N. Kivel, M.V. Polyakov, A. Vladimirov, Phys.Rev.Lett. 101 (2008) 262001
[3] Leading logarithms in the anomalous sector of two-flavour QCD, Johan Bijnens, Karol Kampf, Stefan Lanz, Nucl.Phys. B860 (2012) 245-266
[4] Leading logarithms in N-flavour mesonic Chiral Perturbation Theory, Johan Bijnens, Karol Kampf, Stefan Lanz, Nucl.Phys. B873 (2013) 137-164
[5] Leading logarithms for the nucleon mass, Johan Bijnens, Alexey A. Vladimirov, Nucl.Phys. B891 (2015) 700-719
Primary author
Johan Bijnens
(Lund University)
Co-author
Dr
Alexey A Vladimirov
(Lund University)