Hello, I am a student with a M.Sc. in theoretical physics in search of a PHD. I would like to know which groups in Europe have some relevance in the context of QFT, in particular the problem of the mass in particle physics (no Higgs mechanism), Renormalization Group,.. and General Relativity in particular quantum effects in gravitation, physics of the early universe, Dark Energy, inflation....I' don't like to work in the framework of strings , supersymmetry, Kaluza-Klein, quintessence. To be clear my thesis focused on the conformal transformations in General Relativity and QFT in 4D. thanks ps: For example i like Shaposhnikov's Group (Lousanne)....is a good group?