Sterile neutrino search at the NEOS experiment

Youngju Ko; Chang Hwan Jang; Kim Siyeon; Kyung Kwang Joo; Ba Ro Kim; Eun Ju Jeon; Young Duk Kim; Jaison Lee; Moo Hyun Lee; Yoo Min Oh; Hyang Kyu Park; Kang Soon Park; Bo Young Han; Gwang Min Sun; Hong Joo Kim; Joo Young Lee; Hyunsoo Kim; Jinyu Kim; Kyung Min Seo

Sterile neutrino search at the NEOS experiment

Youngju Ko, Chang Hwan Jang, Kim Siyeon, Kyung Kwang Joo, Ba Ro Kim, Eun Ju Jeon, Young Duk Kim, Jaison Lee, Moo Hyun Lee, Yoo Min Oh, Hyang Kyu Park, Kang Soon Park, Bo Young Han, Gwang Min Sun, Hong Joo Kim, Joo Young Lee, Hyunsoo Kim, Jinyu Kim, Kyung Min Seo

Research output: Contribution to journal › Conference article › peer-review

Abstract

In order to test the existence of the sterile neutrino, NEOS experiment was performed from August 2015 to May 2016. The prompt energy spectrum from the inverse beta decay of electron antineutrino from a 2.8 GW_th reactor was measured at 24 m distance. The number of measured IBD candidates is about 2000 per day during reactor-on period and a ratio of signal to background is about 22. The result shows no strong evidence of active-to-sterile neutrino. An exclusion-limit curve for 3+1 hypothesis is found at 90% CL. via shape-only analysis.

Original language	English
Journal	Proceedings of Science
Volume	295
State	Published - 2017
Event	19th International Workshop on Neutrinos from Accelerators, NUFACT 2017 - Uppsala, Sweden Duration: 25 Sep 2017 → 30 Sep 2017

Cite this

@article{5704ba31e6724fd5a1664b98bd0d560c,

title = "Sterile neutrino search at the NEOS experiment",

abstract = "In order to test the existence of the sterile neutrino, NEOS experiment was performed from August 2015 to May 2016. The prompt energy spectrum from the inverse beta decay of electron antineutrino from a 2.8 GWth reactor was measured at 24 m distance. The number of measured IBD candidates is about 2000 per day during reactor-on period and a ratio of signal to background is about 22. The result shows no strong evidence of active-to-sterile neutrino. An exclusion-limit curve for 3+1 hypothesis is found at 90% CL. via shape-only analysis.",

author = "Youngju Ko and Jang, {Chang Hwan} and Kim Siyeon and Joo, {Kyung Kwang} and Kim, {Ba Ro} and Jeon, {Eun Ju} and Kim, {Young Duk} and Jaison Lee and Lee, {Moo Hyun} and Oh, {Yoo Min} and Park, {Hyang Kyu} and Park, {Kang Soon} and Han, {Bo Young} and Sun, {Gwang Min} and Kim, {Hong Joo} and Lee, {Joo Young} and Hyunsoo Kim and Jinyu Kim and Seo, {Kyung Min}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 19th International Workshop on Neutrinos from Accelerators, NUFACT 2017 ; Conference date: 25-09-2017 Through 30-09-2017",

year = "2017",

language = "English",

volume = "295",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Sterile neutrino search at the NEOS experiment

AU - Ko, Youngju

AU - Jang, Chang Hwan

AU - Siyeon, Kim

AU - Joo, Kyung Kwang

AU - Kim, Ba Ro

AU - Jeon, Eun Ju

AU - Kim, Young Duk

AU - Lee, Jaison

AU - Lee, Moo Hyun

AU - Oh, Yoo Min

AU - Park, Hyang Kyu

AU - Park, Kang Soon

AU - Han, Bo Young

AU - Sun, Gwang Min

AU - Kim, Hong Joo

AU - Lee, Joo Young

AU - Kim, Hyunsoo

AU - Kim, Jinyu

AU - Seo, Kyung Min

PY - 2017

Y1 - 2017

N2 - In order to test the existence of the sterile neutrino, NEOS experiment was performed from August 2015 to May 2016. The prompt energy spectrum from the inverse beta decay of electron antineutrino from a 2.8 GWth reactor was measured at 24 m distance. The number of measured IBD candidates is about 2000 per day during reactor-on period and a ratio of signal to background is about 22. The result shows no strong evidence of active-to-sterile neutrino. An exclusion-limit curve for 3+1 hypothesis is found at 90% CL. via shape-only analysis.

AB - In order to test the existence of the sterile neutrino, NEOS experiment was performed from August 2015 to May 2016. The prompt energy spectrum from the inverse beta decay of electron antineutrino from a 2.8 GWth reactor was measured at 24 m distance. The number of measured IBD candidates is about 2000 per day during reactor-on period and a ratio of signal to background is about 22. The result shows no strong evidence of active-to-sterile neutrino. An exclusion-limit curve for 3+1 hypothesis is found at 90% CL. via shape-only analysis.

UR - http://www.scopus.com/inward/record.url?scp=85073911726&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85073911726

SN - 1824-8039

VL - 295

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 19th International Workshop on Neutrinos from Accelerators, NUFACT 2017

Y2 - 25 September 2017 through 30 September 2017

ER -

Sterile neutrino search at the NEOS experiment

Abstract

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