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Detectability of galactic supernova neutrinos coherently scattered on xenon nuclei in XMASS

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Title
Detectability of galactic supernova neutrinos coherently scattered on xenon nuclei in XMASS
Author(s)
K. Abe; K. Hiraide; K. Ichimura; Y. Kishimoto; K. Kobayashi; M. Kobayashi; S. Moriyama; K. Nakagawa; M. Nakahata; T. Norita; H. Ogawa; H. Sekiya; O. Takachio; A. Takeda; M. Yamashita; B.S. Yang; N.Y. Kim; Y.D. Kim; S. Tasaka; J. Liu; K. Martens; Y. Suzuki; R. Fujita; K. Hosokawa; K. Miuchi; N. Oka; Y. Onishi; Y. Takeuchi; Y.H. Kim; J.S. Lee; K.B. Lee; M.K. Lee; Y. Fukuda; Y. Itow; R. Kegasa; K. Kobayashi; K. Masuda; H. Takiya; H. Uchida; K. Nishijima; K. Fujii; I. Murayama; S. Nakamura; XMASS Collaboration
Publication Date
2017-03
Journal
ASTROPARTICLE PHYSICS, v.89, no., pp.51 - 56
Publisher
ELSEVIER SCIENCE BV
Abstract
The coherent elastic neutrino-nucleus scattering (CEvNS) plays a crucial role at the final evolution of stars. The detection of it would be of importance in astroparticle physics. Among all available neutrino sources, galactic supernovae give the highest neutrino flux in the MeV range. Among all liquid xenon dark matter experiments, XMASS has the largest sensitive volume and light yield. The possibility to detect galactic supernova via the CEvNS-process on xenon nuclei in the current XMASS detector was investigated. The total number of events integrated in about 18 s after the explosion of a supernova 10 kpc away from the Earth was expected to be from 3.5 to 21.1, depending on the supernova model used to predict the neutrino flux, while the number of background events in the same time window was measured to be negligible. All lead to very high possibility to detect CEvNS experimentally for the first time utilizing the combination of galactic supernovae and the XMASS detector. In case of a supernova explosion as close as Betelgeuse, the total observable events can be more than ∼ 104, making it possible to distinguish different supernova models by examining the evolution of neutrino event rate in XMASS. © 2017 Elsevier B.V
URI
https://pr.ibs.re.kr/handle/8788114/4030
ISSN
0927-6505
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
Files in This Item:
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