Galactic Axions search with a superconducting resonant cavity

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Galactic Axions search with a superconducting resonant cavity. / Alesini, D; Speake, Clive.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 99, No. 10, 101101(R), 01.05.2019.

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@article{420d4c8094a04db5889f3e98f5acc1a2,
title = "Galactic Axions search with a superconducting resonant cavity",
abstract = "To account for the dark-matter content in our Universe, postinflationary scenarios predict for the QCD axion a mass in the range {\dh}10–103{\TH} μeV. Searches with haloscope experiments in this mass range require the monitoring of resonant cavity modes with frequency above 5 GHz, where several experimental limitations occur due to linear amplifiers, small volumes, and low quality factors of copper resonant cavities. In this paper, we deal with the last issue, presenting the result of a search for galactic axions using a haloscope based on a 36 cm3 NbTi superconducting cavity. The cavity worked at T ¼ 4 K in a 2 T magnetic field and exhibited a quality factor Q0 ¼ 4.5 × 105 for the TM010 mode at 9 GHz. With such values of Q, the axion signal is significantly increased with respect to copper cavity haloscopes. Operating this setup, we set the limit gaγγ < 1.03 × 10−12 GeV−1 on the axion photon coupling for a mass of about 37 μeV. A comprehensive study of the NbTi cavity at different magnetic fields, temperatures, and frequencies is also presented.",
author = "D Alesini and Clive Speake",
year = "2019",
month = may,
day = "1",
doi = "10.1103/PhysRevD.99.101101",
language = "English",
volume = "99",
journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",
issn = "1550-7998",
publisher = "American Physical Society (APS)",
number = "10",

}

RIS

TY - JOUR

T1 - Galactic Axions search with a superconducting resonant cavity

AU - Alesini, D

AU - Speake, Clive

PY - 2019/5/1

Y1 - 2019/5/1

N2 - To account for the dark-matter content in our Universe, postinflationary scenarios predict for the QCD axion a mass in the range ð10–103Þ μeV. Searches with haloscope experiments in this mass range require the monitoring of resonant cavity modes with frequency above 5 GHz, where several experimental limitations occur due to linear amplifiers, small volumes, and low quality factors of copper resonant cavities. In this paper, we deal with the last issue, presenting the result of a search for galactic axions using a haloscope based on a 36 cm3 NbTi superconducting cavity. The cavity worked at T ¼ 4 K in a 2 T magnetic field and exhibited a quality factor Q0 ¼ 4.5 × 105 for the TM010 mode at 9 GHz. With such values of Q, the axion signal is significantly increased with respect to copper cavity haloscopes. Operating this setup, we set the limit gaγγ < 1.03 × 10−12 GeV−1 on the axion photon coupling for a mass of about 37 μeV. A comprehensive study of the NbTi cavity at different magnetic fields, temperatures, and frequencies is also presented.

AB - To account for the dark-matter content in our Universe, postinflationary scenarios predict for the QCD axion a mass in the range ð10–103Þ μeV. Searches with haloscope experiments in this mass range require the monitoring of resonant cavity modes with frequency above 5 GHz, where several experimental limitations occur due to linear amplifiers, small volumes, and low quality factors of copper resonant cavities. In this paper, we deal with the last issue, presenting the result of a search for galactic axions using a haloscope based on a 36 cm3 NbTi superconducting cavity. The cavity worked at T ¼ 4 K in a 2 T magnetic field and exhibited a quality factor Q0 ¼ 4.5 × 105 for the TM010 mode at 9 GHz. With such values of Q, the axion signal is significantly increased with respect to copper cavity haloscopes. Operating this setup, we set the limit gaγγ < 1.03 × 10−12 GeV−1 on the axion photon coupling for a mass of about 37 μeV. A comprehensive study of the NbTi cavity at different magnetic fields, temperatures, and frequencies is also presented.

UR - https://arxiv.org/abs/1903.06547

U2 - 10.1103/PhysRevD.99.101101

DO - 10.1103/PhysRevD.99.101101

M3 - Article

VL - 99

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-7998

IS - 10

M1 - 101101(R)

ER -