Strong interaction phenomenology

• Grant number: 13/24065-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Effective date (Start): March 01, 2014
• Effective date (End): July 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Adriano Antonio Natale
• Grantee: John David Gomez Aguirre
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

We will study the chiral symmetry breaking in QCD and other strongly interacting gauge theories with the use of Schwinger-Dyson equations. We will introduce in these equations two gluon propagators, an effective one whose origin is atributed to confinement and the usual one-dressed dynamically massive gluon exchange. The solution of these equations can lead to a particular quark self-energy which can be used in several calculations, like the pion transition form factor, and also the production cross-section of a pair of mesons (one vector and one pseudo-scalar meson). (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GOMEZ, J. D.; NATALE, A. A.. Scalar coupling evolution in a non-perturbative QCD resummation scheme. Physics Letters B, v. 747, p. 541-544, JUL 30 2015. (13/22079-8, 13/24065-4)

GOMEZ, J. D.; NATALE, A. A.. QCD fixed points: Banks-Zaksscenario or dynamical gluon mass generation?. International Journal of Modern Physics A, v. 32, n. 2-3, JAN 30 2017. (13/22079-8, 13/24065-4)

GOMEZ, J. D.; NATALE, A. A.. Re+e and an effective QCD charge. Physical Review D, v. 93, n. 1, JAN 25 2016. (13/22079-8, 13/24065-4)

DIAS, A. G.; GOMEZ, J. D.; NATALE, A. A.; QUINTO, A. G.; FERRARI, A. F.. Non-perturbative fixed points and renormalization group improved effective potential. Physics Letters B, v. 739, p. 8-12, DEC 12 2014. (13/22079-8, 13/24065-4)