%0 Generic %1 gasser2003electromagnetic %A Gasser, J. %A Rusetsky, A. %A Scimemi, I. %D 2003 %K qedqcd %R 10.1140/epjc/s2003-01383-1 %T Electromagnetic corrections in hadronic processes %U http://arxiv.org/abs/hep-ph/0305260 %X In quantum field theory, the splitting of the Hamiltonian into a strong and an electromagnetic part cannot be performed in a unique manner. We propose a convention for disentangling these two effects: one matches the parameters of two theories -- with and without electromagnetic interactions -- at a given scale mu_1, referred to as the matching scale. This procedure enables one to analyze the separation of strong and electromagnetic contributions in a transparent manner. We illustrate the method -- in the framework of the loop expansion -- in a Yukawa model, as well as in the linear sigma model, where we also investigate the corresponding low-energy effective theory.

@misc{gasser2003electromagnetic, abstract = {In quantum field theory, the splitting of the Hamiltonian into a strong and an electromagnetic part cannot be performed in a unique manner. We propose a convention for disentangling these two effects: one matches the parameters of two theories -- with and without electromagnetic interactions -- at a given scale mu_1, referred to as the matching scale. This procedure enables one to analyze the separation of strong and electromagnetic contributions in a transparent manner. We illustrate the method -- in the framework of the loop expansion -- in a Yukawa model, as well as in the linear sigma model, where we also investigate the corresponding low-energy effective theory.}, added-at = {2021-04-11T15:23:18.000+0200}, author = {Gasser, J. and Rusetsky, A. and Scimemi, I.}, biburl = {https://www.bibsonomy.org/bibtex/299cda753f3c8d8fdf59cb9ca43dbe45a/cmcneile}, description = {Electromagnetic corrections in hadronic processes}, doi = {10.1140/epjc/s2003-01383-1}, interhash = {6d6a6cba22d3500fd9d5a4f6dcc07119}, intrahash = {99cda753f3c8d8fdf59cb9ca43dbe45a}, keywords = {qedqcd}, note = {cite arxiv:hep-ph/0305260Comment: 19 pages (LaTex), 5 figures, published version. References in the introduction added, discussion shortened, 1 figure removed, conclusions unchanged}, timestamp = {2021-04-11T15:23:18.000+0200}, title = {Electromagnetic corrections in hadronic processes}, url = {http://arxiv.org/abs/hep-ph/0305260}, year = 2003 }