Search for Dark Photons with Superconducting Radio Frequency Cavities

A. Romanenko; R. Harnik; A. Grassellino; R. Pilipenko; Y. Pischalnikov; Z. Liu; O. S. Melnychuk; B. Giaccone; O. Pronitchev; T. Khabiboulline; D. Frolov; S. Posen; S. Belomestnykh; A. Berlin; A. Hook

doi:10.1103/PhysRevLett.130.261801

Search for Dark Photons with Superconducting Radio Frequency Cavities

A. Romanenko, R. Harnik, A. Grassellino, R. Pilipenko, Y. Pischalnikov, Z. Liu, O. S. Melnychuk, B. Giaccone, O. Pronitchev, T. Khabiboulline, D. Frolov, S. Posen, S. Belomestnykh, A. Berlin, A. Hook

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Abstract

We conduct the first "light-shining-through-wall"(LSW) search for dark photons using two state-of-the-art high-quality-factor superconducting radio frequency (SRF) cavities - Dark SRF - and report the results of its pathfinder run. Our new experimental setup enables improvements in sensitivity over previous searches and covers new dark photon parameter space. We design delicate calibration and measurement protocols to utilize the high-Q setup at Dark SRF. Using cavities operating at 1.3 GHz, we establish a new exclusion limit for kinetic mixing as small as ϵ=1.6×10-9 and provide the world's best constraints on dark photons in the 2.1×10-7-5.7×10-6 eV mass range. Our result is the first proof of concept for the enabling role of SRF cavities in LSW setups, with ample opportunities for further improvements. In addition, our data set a competitive lab-based limit on the standard model photon mass by searching for longitudinal photon polarization.

Original language	English (US)
Article number	261801
Journal	Physical review letters
Volume	130
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.130.261801
State	Published - Jun 30 2023
Externally published	Yes

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© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

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Romanenko, A., Harnik, R., Grassellino, A., Pilipenko, R., Pischalnikov, Y., Liu, Z., Melnychuk, O. S., Giaccone, B., Pronitchev, O., Khabiboulline, T., Frolov, D., Posen, S., Belomestnykh, S., Berlin, A., & Hook, A. (2023). Search for Dark Photons with Superconducting Radio Frequency Cavities. Physical review letters, 130(26), Article 261801. https://doi.org/10.1103/PhysRevLett.130.261801

Romanenko, A, Harnik, R, Grassellino, A, Pilipenko, R, Pischalnikov, Y, Liu, Z, Melnychuk, OS, Giaccone, B, Pronitchev, O, Khabiboulline, T, Frolov, D, Posen, S, Belomestnykh, S, Berlin, A & Hook, A 2023, 'Search for Dark Photons with Superconducting Radio Frequency Cavities', Physical review letters, vol. 130, no. 26, 261801. https://doi.org/10.1103/PhysRevLett.130.261801

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Search for Dark Photons with Superconducting Radio Frequency Cavities

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