Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-06-11
Physics
High Energy Physics
High Energy Physics - Theory
80 pages, 2 figures. Minor changes: typos corrected, two footnotes and references added. To be published in JHEP
Scientific paper
10.1088/1126-6708/2008/10/022
In Vasiliev's unfolded formulation of higher-spin dynamics the standard fields are embedded on-shell into covariantly constant master fields valued in Lorentz-covariant slices of the star-product algebra A of functions on the singleton phase space. Correspondingly, the harmonic expansion is taken over compact slices of A that are unitarizable in a rescaled trace-norm rather than the standard Killing norm. Motivated by the higher-derivative nature of the theory, we examine indecomposable unitarizable Harish-Chandra modules consisting of standard massless particles plus linearized runaway solutions. This extension arises naturally in the above fiber approach upon realizing compact-weight states as non-polynomial analytic functions in A.
Iazeolla Carlo
Sundell Per
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