Ultra-low gamma-ray measurement system for neutrinoless double beta decay

W. G. Kang; J. H. Choi; E. J. Jeon; J. I. Lee; H. J. Kim; S. K. Kim; Y. D. Kim; J. H. Lee; K. J. Ma; S. S. Myung; J. H. So

doi:10.1016/j.apradiso.2013.03.057

Ultra-low gamma-ray measurement system for neutrinoless double beta decay

W. G. Kang
, J. H. Choi
, E. J. Jeon
, J. I. Lee
, H. J. Kim
, S. K. Kim
, Y. D. Kim
, J. H. Lee
, K. J. Ma
, S. S. Myung
, J. H. So

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

An experiment for the detection of 0νβ⁺/EC and 0νEC/EC in 92Mo nuclei has been carried out with a scintillating crystal, CaMoO₄, in coincidence with the HPGe detector. We study the background events inside the event selection window for 0ν β⁺/EC decays of CaMoO₄ detector. For 51.2 days of data taking period, we didn't observe any event in the neutrinoless EC/EC decay event window. The ⁹²Mo 0νβ⁺/EC decay half-life limit was set to 0.61×10²⁰ years with a 90% confidence by method of Feldman and Cousins. This ultra-low gamma ray measurement utilizing coincidence technique can be used for the resonant EC/EC decay process of some nuclei which is potentially important for neutrinoless double beta decay process.

Original language	English
Pages (from-to)	290-293
Number of pages	4
Journal	Applied Radiation and Isotopes
Volume	81
DOIs	https://doi.org/10.1016/j.apradiso.2013.03.057
State	Published - Nov 2013

Keywords

0νβ/EC
Mo
Neutrinoless double beta decay

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10.1016/j.apradiso.2013.03.057

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@article{98af93689b634702a1188f67105c769d,

title = "Ultra-low gamma-ray measurement system for neutrinoless double beta decay",

abstract = "An experiment for the detection of 0νβ+/EC and 0νEC/EC in 92Mo nuclei has been carried out with a scintillating crystal, CaMoO4, in coincidence with the HPGe detector. We study the background events inside the event selection window for 0ν β+/EC decays of CaMoO4 detector. For 51.2 days of data taking period, we didn't observe any event in the neutrinoless EC/EC decay event window. The 92Mo 0νβ+/EC decay half-life limit was set to 0.61×1020 years with a 90\% confidence by method of Feldman and Cousins. This ultra-low gamma ray measurement utilizing coincidence technique can be used for the resonant EC/EC decay process of some nuclei which is potentially important for neutrinoless double beta decay process.",

keywords = "0νβ/EC, Mo, Neutrinoless double beta decay",

author = "Kang, \{W. G.\} and Choi, \{J. H.\} and Jeon, \{E. J.\} and Lee, \{J. I.\} and Kim, \{H. J.\} and Kim, \{S. K.\} and Kim, \{Y. D.\} and Lee, \{J. H.\} and Ma, \{K. J.\} and Myung, \{S. S.\} and So, \{J. H.\}",

year = "2013",

month = nov,

doi = "10.1016/j.apradiso.2013.03.057",

language = "English",

volume = "81",

pages = "290--293",

journal = "Applied Radiation and Isotopes",

issn = "0969-8043",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Ultra-low gamma-ray measurement system for neutrinoless double beta decay

AU - Kang, W. G.

AU - Choi, J. H.

AU - Jeon, E. J.

AU - Lee, J. I.

AU - Kim, H. J.

AU - Kim, S. K.

AU - Kim, Y. D.

AU - Lee, J. H.

AU - Ma, K. J.

AU - Myung, S. S.

AU - So, J. H.

PY - 2013/11

Y1 - 2013/11

N2 - An experiment for the detection of 0νβ+/EC and 0νEC/EC in 92Mo nuclei has been carried out with a scintillating crystal, CaMoO4, in coincidence with the HPGe detector. We study the background events inside the event selection window for 0ν β+/EC decays of CaMoO4 detector. For 51.2 days of data taking period, we didn't observe any event in the neutrinoless EC/EC decay event window. The 92Mo 0νβ+/EC decay half-life limit was set to 0.61×1020 years with a 90% confidence by method of Feldman and Cousins. This ultra-low gamma ray measurement utilizing coincidence technique can be used for the resonant EC/EC decay process of some nuclei which is potentially important for neutrinoless double beta decay process.

AB - An experiment for the detection of 0νβ+/EC and 0νEC/EC in 92Mo nuclei has been carried out with a scintillating crystal, CaMoO4, in coincidence with the HPGe detector. We study the background events inside the event selection window for 0ν β+/EC decays of CaMoO4 detector. For 51.2 days of data taking period, we didn't observe any event in the neutrinoless EC/EC decay event window. The 92Mo 0νβ+/EC decay half-life limit was set to 0.61×1020 years with a 90% confidence by method of Feldman and Cousins. This ultra-low gamma ray measurement utilizing coincidence technique can be used for the resonant EC/EC decay process of some nuclei which is potentially important for neutrinoless double beta decay process.

KW - 0νβ/EC

KW - Mo

KW - Neutrinoless double beta decay

UR - https://www.scopus.com/pages/publications/84883462514

U2 - 10.1016/j.apradiso.2013.03.057

DO - 10.1016/j.apradiso.2013.03.057

M3 - Article

C2 - 23726518

AN - SCOPUS:84883462514

SN - 0969-8043

VL - 81

SP - 290

EP - 293

JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

ER -

Ultra-low gamma-ray measurement system for neutrinoless double beta decay

Abstract

Keywords

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