June 29, 2015 to July 3, 2015
Pisa
Europe/Rome timezone

*Leading Talk* Leading logarithms for mesons and nucleons

Jun 30, 2015, 4:20 PM
30m
Room PS4 (Building E, Polo Fibonacci, Pisa)

Room PS4

Building E, Polo Fibonacci, Pisa

Talk Hadron Structure and Meson-Baryon Interaction Working Group Parallel Session 4 - Hadron Structure & Meson-Baryon Interaction WG

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)

Presentation materials