TY - JOUR
T1 - Search for dark photons using a multilayer dielectric haloscope equipped with a single-photon avalanche diode
AU - Manenti, Laura
AU - Mishra, Umang
AU - Bruno, Gianmarco
AU - Roberts, Henry
AU - Oikonomou, Panos
AU - Pasricha, Renu
AU - Sarnoff, Isaac
AU - Weston, James
AU - Arneodo, Francesco
AU - Di Giovanni, Adriano
AU - Millar, Alexander John
AU - Mora, Knut Dundas
N1 - Publisher Copyright:
© 2022 authors. Published by the American Physical Society.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - We report the results of the search for dark photons with mass around 1.5 eV/c2 using a multilayer dielectric haloscope equipped with an affordable and commercially available photosensor. The multilayer stack, which enables the conversion of dark photons (DP) to Standard Model photons, is made of 23 bilayers of alternating SiO2 and Si3N4 thin films with linearly increasing thicknesses through the stack (a configuration known as a "chirped stack"). The thicknesses have been chosen according to an optimization algorithm in order to maximize the DP-photon conversion in the energy region where the photosensor sensitivity peaks. This prototype experiment, dubbed "MuDHI"(Multilayer Dielectric Haloscope Investigation) by the authors of this paper, has been designed, developed, and run at the Astroparticle Laboratory of New York University Abu Dhabi, which marks the first time a dark matter experiment has been operated in the Middle East. No significant signal excess is observed, and the method of maximum log likelihood is used to set exclusion limits at 90% confidence level on the kinetic mixing coupling constant between dark photons and ordinary photons.
AB - We report the results of the search for dark photons with mass around 1.5 eV/c2 using a multilayer dielectric haloscope equipped with an affordable and commercially available photosensor. The multilayer stack, which enables the conversion of dark photons (DP) to Standard Model photons, is made of 23 bilayers of alternating SiO2 and Si3N4 thin films with linearly increasing thicknesses through the stack (a configuration known as a "chirped stack"). The thicknesses have been chosen according to an optimization algorithm in order to maximize the DP-photon conversion in the energy region where the photosensor sensitivity peaks. This prototype experiment, dubbed "MuDHI"(Multilayer Dielectric Haloscope Investigation) by the authors of this paper, has been designed, developed, and run at the Astroparticle Laboratory of New York University Abu Dhabi, which marks the first time a dark matter experiment has been operated in the Middle East. No significant signal excess is observed, and the method of maximum log likelihood is used to set exclusion limits at 90% confidence level on the kinetic mixing coupling constant between dark photons and ordinary photons.
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U2 - 10.1103/PhysRevD.105.052010
DO - 10.1103/PhysRevD.105.052010
M3 - Article
AN - SCOPUS:85128596529
SN - 2470-0010
VL - 105
JO - Physical Review D
JF - Physical Review D
IS - 5
M1 - 052010
ER -