We describe an explicit N=2 supergravity model where an arbitrarily light vector boson ("graviphoton") is coupled, with typical gravitational strength to matter hypermultiplets, possessing unbroken gauge interactions as well. We discuss: i) the mass and the couplings of the graviphoton; ii) the consistency of its coupling to a mass generated by the Higgs mechanism; iii) the actual composition of the graviphoton in terms of the original vector fields of the Lagrangian (e.g. its mixing with the photon).
A model for a light graviphoton / Barbieri, R.; Cecotti, S.. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 33:2(1986), pp. 255-261. [10.1007/BF01411143]
A model for a light graviphoton
Barbieri, R.;Cecotti, S.
1986-01-01
Abstract
We describe an explicit N=2 supergravity model where an arbitrarily light vector boson ("graviphoton") is coupled, with typical gravitational strength to matter hypermultiplets, possessing unbroken gauge interactions as well. We discuss: i) the mass and the couplings of the graviphoton; ii) the consistency of its coupling to a mass generated by the Higgs mechanism; iii) the actual composition of the graviphoton in terms of the original vector fields of the Lagrangian (e.g. its mixing with the photon).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
