Non-perturbative fixed points and renormalization group improved effective potential

Autor(es)

Dias, A. G. ^[1] ; Gomez, J. D. ^[1] ; Natale, A. A. ^{[1, 2]} ; Quinto, A. G. ^[1] ; Ferrari, A. F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil

^[2] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 739, p. 8-12, DEC 12 2014.
• Citações Web of Science: 4

Resumo

The stability conditions of a renormalization group improved effective potential have been discussed in the case of scalar QED and QCD with a colorless scalar. We calculate the same potential in these models assuming the existence of non-perturbative fixed points associated witha conformal phase. In the case of scalar QED the barrier of instability found previously is barely displaced as we approach the fixed point, and in the case of QCD with a colorless scalar not only the barrier is changed but the local minimum of the potential is also changed. (C) 2014 The Authors. Published by Elsevier B.V. (AU)

• Processo FAPESP: 13/22079-8 - Física de partículas e campos: modelo padrão e suas extensões
• Beneficiário: Adriano Antonio Natale
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 13/24065-4 - Fenomenologia da interação forte
• Beneficiário: John David Gomez Aguirre
• Modalidade de apoio: Bolsas no Brasil - Doutorado