Dark matter Axion search with riNg Cavity Experiment DANCE: Current sensitivity. (arXiv:2105.06252v2 [hep-ph] UPDATED)

Dark matter Axion search with riNg Cavity Experiment DANCE: Current sensitivity. (arXiv:2105.06252v2 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Oshima_Y/0/1/0/all/0/1">Yuka Oshima</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Fujimoto_H/0/1/0/all/0/1">Hiroki Fujimoto</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Ando_M/0/1/0/all/0/1">Masaki Ando</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Fujita_T/0/1/0/all/0/1">Tomohiro Fujita</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Michimura_Y/0/1/0/all/0/1">Yuta Michimura</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Nagano_K/0/1/0/all/0/1">Koji Nagano</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Obata_I/0/1/0/all/0/1">Ippei Obata</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Watanabe_T/0/1/0/all/0/1">Taihei Watanabe</a>

Dark matter Axion search with riNg Cavity Experiment (DANCE) was proposed. To
search for axion-like particles, we aim to detect the rotation and oscillation
of optical linear polarization caused by axion-photon coupling with a bow-tie
cavity. DANCE can improve the sensitivity to axion-photon coupling constant
$g_{a gamma}$ for axion mass $m_a < 10^{-10} , rm{eV}$ by several orders of
magnitude compared to the best upper limits at present. A prototype experiment
DANCE Act-1 is in progress to demonstrate the feasibility of the method and to
investigate technical noises. We assembled the optics, evaluated the
performance of the cavity, and estimated the current sensitivity. If we observe
for a year, we can reach $g_{a gamma} simeq 9 times 10^{-7} ,
rm{GeV^{-1}}$ at $m_a simeq 10^{-13} , rm{eV}$. The current sensitivity was
believed to be limited by laser intensity noise at low frequencies and by
mechanical vibration at high frequencies.

Dark matter Axion search with riNg Cavity Experiment (DANCE) was proposed. To
search for axion-like particles, we aim to detect the rotation and oscillation
of optical linear polarization caused by axion-photon coupling with a bow-tie
cavity. DANCE can improve the sensitivity to axion-photon coupling constant
$g_{a gamma}$ for axion mass $m_a < 10^{-10} , rm{eV}$ by several orders of
magnitude compared to the best upper limits at present. A prototype experiment
DANCE Act-1 is in progress to demonstrate the feasibility of the method and to
investigate technical noises. We assembled the optics, evaluated the
performance of the cavity, and estimated the current sensitivity. If we observe
for a year, we can reach $g_{a gamma} simeq 9 times 10^{-7} ,
rm{GeV^{-1}}$ at $m_a simeq 10^{-13} , rm{eV}$. The current sensitivity was
believed to be limited by laser intensity noise at low frequencies and by
mechanical vibration at high frequencies.

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