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Spontaneous symmetry breaking for massive spin-2 interacting with gravity
- Source :
-
Physics Letters B . Apr2003, Vol. 557 Issue 3/4, p247. 6p. - Publication Year :
- 2003
-
Abstract
- An action for a massless graviton interacting with a massive tensor field is proposed. The model is based on coupling the metric tensor to an <f>SP(4)</f> gauge theory spontaneously broken to <f>SL(2,C)</f>. The symmetry breaking is achieved by using a Higgs multiplet containing a scalar field and a vector field related by a constraint. We show that in the non-unitary gauge and for the Fierz–Pauli form of the mass term, the six degrees of freedom of the massive tensor are identified with two tensor helicities, two vector helicities of the Goldstone vector, and two scalars present in the Goldstone multiplet. The propagators of this system are well behaved, in contrast to the system consisting of two tensors. [Copyright &y& Elsevier]
- Subjects :
- *CALCULUS of tensors
*VECTOR fields
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 557
- Issue :
- 3/4
- Database :
- Academic Search Index
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 9289608
- Full Text :
- https://doi.org/10.1016/S0370-2693(03)00190-4