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Article overview
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Continuous-spin field propagator and interaction with matter | Xavier Bekaert
; Jihad Mourad
; Mojtaba Najafizadeh
; | Date: |
16 Oct 2017 | Abstract: | Action principles for the single and double valued continuous-spin
representations of the Poincare group have been recently proposed in a
Segal-like formulation. We address three related issues: First, we explain how
to obtain these actions directly from the Fronsdal-like and Fang-Fronsdal-like
equations by solving the traceless constraints in Fourier space. Second, we
introduce a current, similar to the one of Berends, Burgers and Van Dam, which
is bilinear in a pair of scalar matter fields, to which the bosonic
continuous-spin field can couple minimally. Third, we investigate the current
exchange mediated by a continuous-spin particle obtained from this action
principle and investigate whether it propagates the right degrees of freedom,
and whether it reproduces the known result for massless higher-spin fields in
the helicity limit. | Source: | arXiv, 1710.5788 | Services: | Forum | Review | PDF | Favorites |
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