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Symmetries of higher-spin current interactions in four dimensions |
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| Authors: | O A Gelfond M A Vasiliev |
| Abstract: | We show that the current interaction of massless fields in four dimensions breaks the sp(8) symmetry of free massless equations of arbitrary spin down to the conformal symmetry su(2, 2). This breaking agrees with the form of the nonlinear higher-spin field equations. |
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