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Journal Article

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

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Yamamoto,  Kazuhiro
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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PRD78-022004.pdf
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Citation

Yamamoto, K., Hayakawa, H., Okada, A., Uchiyama, T., Miyoki, S., Ohashi, M., et al. (2008). Effect of energy deposited by cosmic-ray particles on interferometric gravitational wave detectors. Physical Review D, 78(2): 022004. doi:10.1103/PhysRevD.78.022004.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-140C-3
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.