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arXiv · 0805.2387

Effect of energy deposited by cosmic-ray particles on interferometric gravitational wave detectors

Kazuhiro Yamamoto·Hideaki Hayakawa·Atsushi Okada·Takashi Uchiyama·Shinji Miyoki·Masatake Ohashi·Kazuaki Kuroda·Nobuyuki Kanda·Daisuke Tatsumi·Yoshiki Tsunesada
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Abstract

We investigated the noise of interferometric gravitational wave detectors due to heat energy deposited by cosmic-ray particles. We derived a general formula that describes the response of a mirror against a cosmic-ray passage. We found that there are differences in the comic-ray responses (the dependence of temperature and cosmic-ray track position) in cases of interferometric and resonant gravitational wave detectors. The power spectral density of vibrations caused by low-energy secondary muons is 100-times smaller than the goal sensitivity of future second-generation interferometer projects, such as LCGT and Advanced LIGO. The arrival frequency of high-energy cosmic-ray muons that generate enough large showers inside mirrors of LCGT and Advanced LIGO is one per a millennium. We also discuss the probability of exotic-particle detection with interferometers.

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Kazuhiro Yamamoto, Hideaki Hayakawa, Atsushi Okada, Takashi Uchiyama, Shinji Miyoki, Masatake Ohashi, Kazuaki Kuroda, Nobuyuki Kanda, Daisuke Tatsumi, Yoshiki Tsunesada. 2008-08-03. Effect of energy deposited by cosmic-ray particles on interferometric gravitational wave detectors. https://doi.org/10.1103/physrevd.78.022004

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