research product . Lecture . 2013

The 1/N expansion method in quantum field theory

Sazdjian, H;
  • Published: 08 Jul 2013
  • Publisher: HAL CCSD
  • Country: France
1. Introduction and motivations, 2. The scalar O(N) model, 3. The Gross-Neveu model, 4. QCD, 5.Conclusion.; Doctoral; The motivations of the 1/N expansion method in quantum field theory are explained. The method is first illustrated with the O(N) model of scalar fields. A second example is considered with the two-dimensional Gross-Neveu model of fermion fields with global U(N) and discrete chiral symmetries. The case of QCD is briefly sketched.
arXiv: High Energy Physics::Lattice
free text keywords: Mass transmutation, Dynamical mass generation, Asymptotic freedom, Spontaneous symmetry breaking, Global symmetries, Large number of components, 11.10.Gh, 11.10.Hi, 11.15.Pg, 11.30.Hv, 11.30.Qc, 12.38.Aw., [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Related Organizations
Funded by
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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