Constraints on photon mass and dark photon from the Jovian magnetic field

Abstract

The Jovian magnetic field, being the strongest and largest planetary one in the solar system, could offer us new insights into possible microscopic scale new physics, such as a non-zero mass of the Standard Model (SM) photon or a light dark photon kinetically mixing with the SM photon. We employ the immense data set from the latest Juno mission, which provides us unprecedented information about the magnetic field of the gas giant, together with a more rigorous statistical approach compared to the literature, to set strong constraints on the dark photon mass and kinetic mixing parameter, as well as the SM photon mass. The constraint on the dark photon parameters is independent of whether dark photon is (part of) dark matter or not, and serves as the most stringent one in a certain regime of the parameter space.

24 pages, 8 figures; typos corrected, revised resolutions for the various instrument dynamic ranges in Table 2, results unchanged

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• Probing Dark Photons through Gravitational Decoupling of Mass-State Oscillations in Interstellar Media
• Limits on the Carroll-Field-Jackiw electrodynamics from geomagnetic data
• INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_i-L_j$ Vectors
• The Dark Photon: a 2026 Perspective
• Exploring the dark axion portal in the LUXE-NPOD experiment