A repulsive interaction mediated by a spin-2 field?

Details A repulsive interaction mediated by a spin-2 field? A repulsive interaction mediated by a spin-2 field?

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.158..163m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 158, no. 1, Aug. 1989, p. 163-167.

Physics

1

Field Theory (Physics), Gauge Theory, Particle Interactions, Spin Dynamics, Electromagnetic Interactions, Strong Interactions (Field Theory), Weak Interactions (Field Theory)

Scientific paper

It is pointed out that theoretical works 'automatically' assume that an eventual new interaction being repulsive (attractive) must be mediated by spin-1 (spin-0 or spin-2) particles. In the case of four known interactions these assumptions are correct. The problem of whether extrapolation to the eventual further interactions is necessarily correct is briefly discussed. An illustrative case involving magnetic photons suggests that it is never strange to expect that an eventual fifth repulsive interaction may also be mediated by a spin-2 field. On the other hand, it also suggests that an attractive force mediated by a spin-1 particle is, in principle, allowed, but highly unlikely.

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