Interactions for a collection of spin-two fields intermediated by a massless p-form

Autor: Silviu Constantin Sararu, E. M. Cioroianu, Constantin Bizdadea, Solange-Odile Saliu, D. Cornea, E. Diaconu
Rok vydání: 2008
Předmět:
Zdroj: Nuclear Physics B. 794:442-494
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2007.10.007
Popis: Under the general hypotheses of locality, smoothness of interactions in the coupling constant, Poincare invariance, Lorentz covariance, and preservation of the number of derivatives on each field, we investigate the cross-couplings of one or several spin-two fields to a massless p-form. Two complementary cases arise. The first case is related to the standard interactions from General Relativity, but the second case describes a new, special type of couplings in D=p+2 spacetime dimensions, which break the PT-invariance. Nevertheless, no consistent, indirect cross-interactions among different gravitons with a positively defined metric in internal space can be constructed.
Comment: LaTeX; the content of v2 has been changed, some former results have been changed, new material has been added; accepted for publication in Nuclear Physics B
Databáze: OpenAIRE