Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Lemes, V."'
We show that gauge fields after a spontaneous symmetry breaking (SSB) mechanism do not have a Gribov problem along the broken directions. In order to make this proof, we describe a gauge fixing procedure inspired on Morse theory leading to the concep
Externí odkaz:
http://arxiv.org/abs/2402.05683
Some time ago we have introduced a route to provide confinement in the sense that particle excitations would appear from condensates of fields that do not have physical asymptotic states. We envisaged this mechanism in an asymmetric vacuum phase of a
Externí odkaz:
http://arxiv.org/abs/2304.04560
After the phase transition of a Grand Unified Theory (GUT), its single coupling splits into the couplings of the basic interactions. On the other side, the measurement of the Weinberg mixing angle in the eletroweak theory determines that the coupling
Externí odkaz:
http://arxiv.org/abs/2205.02903
Publikováno v:
Phys. Rev. D 101, 094002 (2020)
We introduced here the study of a QCD based on a complex group. Our aim is to show that a gauge theory with a complex symmetry develops some of the features required for the description of a confined phase. This theory leads to gluons with propagatio
Externí odkaz:
http://arxiv.org/abs/2002.07222
Publikováno v:
Phys. Rev. D 101, 105003 (2020)
A nonlocal mass operator can be consistently set in local form through the introduction of a set of additional fields with geometrical appropriated properties. A local and polynomial gauge invariant action is thus identified. Equations compatible wit
Externí odkaz:
http://arxiv.org/abs/2002.07302
We use the t'Hoft-Wilson method for the generation of static fermions potential in order to derive a class of confining potentials which can describe the quark confinement. A general pattern for the construction of propagators through the localizatio
Externí odkaz:
http://arxiv.org/abs/1806.07445
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Publikováno v:
Braz. J. Phys. 50, no.5, 625-633 (2020)
We explore a contact point between two distinct approaches to the confinment problem. We show that BLG-ABJM like theories generate gauge propagators with just the complex pole structure prescribed by the Gribov scenario for confinemnt. This structure
Externí odkaz:
http://arxiv.org/abs/1609.05093
Autor:
Amaral, M. M., Lemes, V. E. R.
Some remarks on Gribov mechanism on N=1 Supersymmetric 3D theories are presented. The two point correlation function is analysed and the possibility of obtaining the confining Gribov regime is discussed. Also the possibility of obtaining Gribov behav
Externí odkaz:
http://arxiv.org/abs/1410.6768
Publikováno v:
Eur. Phys. J. C (2014) 74: 3069
In this work, we recover the problem of legitimate topologically trivial Gribov copies inside the Gribov horizon. We avoid the reducibility problem which hampered the standard construction of van Baal, and then we are able to build a valid example wi
Externí odkaz:
http://arxiv.org/abs/1402.6235