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Search for solar Kaluza-Klein axions by annual modulation with the XMASS-I detector

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Title
Search for solar Kaluza-Klein axions by annual modulation with the XMASS-I detector
Author(s)
Oka, N; Abe, K; Hiraide, K; Ichimura, K; Kishimoto, Y; Kobayashi, K; Kobayashi, M; Moriyama, S; Nakahata, M; Norita, T; Ogawa, H; Sato, K; Sekiya, H; Takachio, O; Takeda, A; Tasaka, S; Yamashita, M; Yang, BS; Nam Young Kim; Yeongduk Kim; Itow, Y; Kanzawa, K; Kegasa, R; Masuda, K; Takiya, H; Fushimi, K; Kanzaki, G; Martens, K; Suzuki, Y; Xu, BD; Fujita, R; Hosokawa, K; Miuchi, K; Takeuchi, Y; Yong Hamb Kim; Lee, KB; Lee, MK; Fukuda, Y; Miyasaka, M; Nishijima, K; Nakamura, S
Publication Date
2017-10
Journal
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, v., no.10, pp.103C01 -
Publisher
OXFORD UNIV PRESS INC
Abstract
In theories with large extra dimensions beyond the standard 4-dimensional spacetime, axions could propagate in such extra dimensions, and acquire Kaluza-Klein ( KK) excitations. TheseKK axions are produced in the Sun and could solve the unexplained heating of the solar corona. While most of the solar KK axions escape from the solar system, a small fraction are gravitationally trapped in orbits around the Sun. They would decay into 2 photons inside a terrestrial detector. The event rate is expected to modulate annually depending on the distance from the Sun. We have searched for the annual modulation signature using 832 x 359 kg center dot days of XMASS-I data. No significant event rate modulation is found, and hence we set the first experimental constraint on the KK axion-photon coupling of 4.8 x 10(-12) GeV-1 at the 90% confidence level for a KK axion number density of (n) over bara = 4.07x10(13) m(-3), the total number of extra dimensions n = 2, and the number of extra dimensions d = 2 that axions can propagate in.
URI
http://pr.ibs.re.kr/handle/8788114/4778
DOI
10.1093/ptep/ptx137
ISSN
2050-3911
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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