Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Gripaios, B. M."'
Publikováno v:
Phys.Rev.D75:044014,2007
A self consistent effective field theory of modified gravity has recently been proposed with spontaneous breaking of local Lorentz invariance. The symmetry is broken by a vector field with the wrong-sign mass term and it has been shown to have additi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610125
Autor:
Gripaios, B. M.
Publikováno v:
JHEP0410:069,2004
We construct effective field theories in which gravity is modified via spontaneous breaking of local Lorentz invariance. This is a gravitational analogue of the Higgs mechanism. These theories possess additional graviton modes and modified dispersion
Externí odkaz:
http://arxiv.org/abs/hep-th/0408127
Autor:
Gripaios, B. M.
Publikováno v:
Commun.Math.Phys.254:179-189,2005
Effective superpotentials obtained by integrating out matter in super Yang-Mills and conformal supergravity backgrounds in N=1 SUSY theories are considered. The pure gauge and supergravity contributions (generalizing Veneziano-Yankielowicz terms) are
Externí odkaz:
http://arxiv.org/abs/hep-th/0311025
Autor:
Gripaios, B. M., Milhano, J. G.
Publikováno v:
Phys.Lett. B564 (2003) 104-110
A variational analysis of the pure SU(N) gauge theory in 3+1 dimensions at finite temperature is performed, extending the work of Kogan, Kovner and Milhano in hep-ph/0208053 . A de-confining phase transition is found at a temperature of 470 MeV, some
Externí odkaz:
http://arxiv.org/abs/hep-ph/0302172
Autor:
Gripaios, B. M.
Publikováno v:
Phys.Lett. B558 (2003) 250-254
The status of the `BRST-invariant' condensate of mass dimension two in QCD is explained. The condensate is only invariant under an `on-shell' BRST symmetry which includes a partial gauge-fixing. The on-shell BRST symmetry represents the residual gaug
Externí odkaz:
http://arxiv.org/abs/hep-th/0302015
Autor:
Gripaios, B. M.
Publikováno v:
Phys.Rev. D67 (2003) 025023
A variational method is used to analyse compact U(1) gauge theory in 2+1-dimensions at finite temperature, T, weak coupling, g and where the fundamental magnetic monopoles have magnetic charge 2\pi n/g. The theory undergoes a critical transition from
Externí odkaz:
http://arxiv.org/abs/hep-th/0211104
Autor:
Gripaios, B. M.
Publikováno v:
Int.J.Mod.Phys. A18 (2003) 85-96
The Lorentz-invariant gluon correlation functions, corresponding to scalar and pseudo-scalar glueballs, are calculated for Kogan's and Kovner's variational ansatz for the pure SU(N) Yang-Mills wavefunctional. One expects that only one dynamical mass
Externí odkaz:
http://arxiv.org/abs/hep-ph/0204310
Autor:
GRIPAIOS, B. M.
Publikováno v:
From Quarks To Black Holes: Progress in Understanding the Logic of Nature - Proceedings of the International School of Subnuclear Physics; 2005, p536-543, 8p