Higgs Mechanism in the Presence of a Topological Term
arXiv:hep-th/0106210 · doi:10.1142/S0217751X02013058
Abstract
In cases of both abelian and nonabelian gauge groups, we study the Higgs mechanism in the topologically massive gauge theories in an arbitrary space-time dimension. We show that when the conventional Higgs potential coexists with a topological term, gauge fields become massive by 'eating' simultaneously both the Nambu-Goldstone boson and a higher-rank tensor field, and instead a new massless scalar field is 'vomitted' in the physical spectrum. Because of the appearance of this new massless field, the number of the physical degrees of freedom remains unchanged before and after the spontaneous symmetry breakdown. Moreover, the fact that the new field is a physical and positive norm state is rigorously proved by performing the manifestly covariant quantization of the model in three and four dimensions. In the mechanism at hand, the presence of a topological term makes it possible to shift mass of gauge fields in a nontrivial manner compared to the conventional value.
19 pages, LaTex 2e
References in corpus (2)
Cited by in corpus (14)
- Modified Gravity and Cosmology
- Brane-World Gravity
- Random Matrices and the Spectrum of N-flation
- Bouncing and Accelerating Solutions in Nonlocal Stringy Models
- Holographic Systematics of D-brane Inflation
- Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton
- Non-standard primordial fluctuations and nongaussianity in string inflation
- Detecting Cosmic Strings in the CMB with the Canny Algorithm
- Kahler Moduli Inflation Revisited
- Avoiding the blue spectrum and the fine-tuning of initial conditions in hybrid inflation
- 4D Superfield Reduction of 5D Orbifold SUGRA and Heterotic M-theory
- Axionic D3-D7 Inflation
- M-Theory Moduli Space and Cosmology
- Tachyon-Dilaton-induced Inflation as an alpha'-resummed String Background