United States. Department of Energy (DE-AC02-05CH11231

Banks, TI

Berger, BE

Decowski, MP

Detwiler, JA

Efremenko, Y

Enomoto, S

Fujikawa, BK

Fushimi, K

Gando, A

Gando, Y

Hachiya, T

Hayashi, A

Hayashida, S

Ikeda, H

Inoue, K

Ishidoshiro, K

KamLAND-Zen Collaboration

Karino, Y

Karwowski, HJ

Koga, M

Kozlov, A

Markoff, DM

Matsuda, S

Mitsui, T

Nakamura, K

O'Donnell, T

Obara, S

Oura, T

Ozaki, H

Shimizu, I

Shirahata, Y

Shirai, J

Suzuki, A

Takai, T

Takemoto, Y

Tamae, K

Teraoka, Y

Tornow, W

Ueshima, K

Watanabe, H

Winslow, LA

Yoshida, S

Physical Review Letters

We present an improved search for neutrinoless double-beta (0νββ) decay of ^{136}Xe in the KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we achieved a significant reduction of the ^{110m}Ag contaminant identified in previous searches. Combining the results from the first and second phase, we obtain a lower limit for the 0νββ decay half-life of T_{1/2}^{0ν}&gt;1.07×10^{26}  yr at 90%&nbsp;C.L., an almost sixfold improvement over previous limits. Using commonly adopted nuclear matrix element calculations, the corresponding upper limits on the effective Majorana neutrino mass are in the range 61-165&nbsp;meV. For the most optimistic nuclear matrix elements, this limit reaches the bottom of the quasidegenerate neutrino mass region

eScholarship - University of California

Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen

We present an improved search for neutrinoless double-beta (0νββ) decay of 136Xe in the KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we achieved a significant reduction of the 110mAg contaminant identified in previous searches. Combining the results from the first and second phase, we obtain a lower limit for the 0νββ decay half-life of T0νv1/2&gt;1.07×1026  yr at 90% C.L., an almost sixfold improvement over previous limits. Using commonly adopted nuclear matrix element calculations, the corresponding upper limits on the effective Majorana neutrino mass are in the range 61–165 meV. For the most optimistic nuclear matrix elements, this limit reaches the bottom of the quasidegenerate neutrino mass region

Gando, A.

Gando, Y.

Hachiya, T.

Hayashi, A.

Hayashida, S.

Ikeda, H.

Inoue, K.

Ishidoshiro, K.

Karino, Y.

Koga, M.

Matsuda, S.

Mitsui, T.

Nakamura, K.

Obara, S.

Oura, T.

Ozaki, H.

Shimizu, I.

Shirahata, Y.

Shirai, J.

Suzuki, A.

Takai, T.

Tamae, K.

Teraoka, Y.

Ueshima, K.

Watanabe, H.

Kozlov, A.

Takemoto, Y.

Yoshida, S.

Fushimi, K.

Banks, T.I.

Berger, B.E.

Fujikawa, B.K.

O'Donnell, T.

Winslow, L.A.

Efremenko, Y.

Karwowski, H.J.

Markoff, D.M.

Tornow, W.

Detwiler, J.A.

Enomoto, S.

Decowski, M.P.

International Migration, Integration and Social Cohesion online publications

UvA-DARE is a service provided by the library of the University of Amsterdam (https://dare.uva.nl)UvA-DARE (Digital Academic Repository)Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region withKamLAND-ZenGando, A.; Gando, Y.; Hachiya, T.; Hayashi, A.; Hayashida, S.; Ikeda, H.; Inoue, K.;Ishidoshiro, K.; Karino, Y.; Koga, M.; Matsuda, S.; Mitsui, T.; Nakamura, K.; Obara, S.; Oura,T.; Ozaki, H.; Shimizu, I.; Shirahata, Y.; Shirai, J.; Suzuki, A.; Takai, T.; Tamae, K.; Teraoka,Y.; Ueshima, K.; Watanabe, H.; Kozlov, A.; Takemoto, Y.; Yoshida, S.; Fushimi, K.; Banks,T.I.; Berger, B.E.; Fujikawa, B.K.; O'Donnell, T.; Winslow, L.A.; Efremenko, Y.; Karwowski,H.J.; Markoff, D.M.; Tornow, W.; Detwiler, J.A.; Enomoto, S.; Decowski, M.P.; KamLAND-ZenCollaborationDOI10.1103/PhysRevLett.117.082503Publication date2016Document VersionOther versionPublished inPhysical Review LettersLink to publicationCitation for published version (APA):Gando, A., Gando, Y., Hachiya, T., Hayashi, A., Hayashida, S., Ikeda, H., Inoue, K.,Ishidoshiro, K., Karino, Y., Koga, M., Matsuda, S., Mitsui, T., Nakamura, K., Obara, S., Oura,T., Ozaki, H., Shimizu, I., Shirahata, Y., Shirai, J., ... KamLAND-Zen Collaboration (2016).Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen. Physical Review Letters, 117(8), [082503].https://doi.org/10.1103/PhysRevLett.117.082503General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s)and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an opencontent license (like Creative Commons).Publisher’s Note: Search for Majorana Neutrinos Near the InvertedMass Hierarchy Region with KamLAND-Zen[Phys. Rev. Lett. 117, 082503 (2016)]A. Gando, Y. Gando, T. Hachiya, A. Hayashi, S. Hayashida, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Karino,M. Koga, S. Matsuda, T. Mitsui, K. Nakamura, S. Obara, T. Oura, H. Ozaki, I. Shimizu, Y. Shirahata, J. Shirai,A. Suzuki, T. Takai, K. Tamae, Y. Teraoka, K. Ueshima, H. Watanabe, A. Kozlov, Y. Takemoto, S. Yoshida,K. Fushimi, T. I. Banks, B. E. Berger, B. K. Fujikawa, T. O’Donnell, L. A. Winslow, Y. Efremenko,H. J. Karwowski, D. M. Markoff, W. Tornow, J. A. Detwiler, S. Enomoto, and M. P. Decowski(KamLAND-Zen Collaboration)(Received 22 August 2016; published 2 September 2016)DOI: 10.1103/PhysRevLett.117.109903This paper was published online on 16 August 2016 with the omission of an additional affiliation. The additionalaffiliation should appear at the end of the eighth affiliation group as “The University of North Carolina at Chapel Hill,Chapel Hill, North Carolina 27599, USA.” The affiliation has been corrected as of 22 August 2016. The affiliation is correctin the printed version of the journal.PRL 117, 109903 (2016) P HY S I CA L R EV I EW LE T T ER Sweek ending2 SEPTEMBER 20160031-9007=16=117(10)=109903(1) 109903-1 © 2016 American Physical Society

English

We present an improved search for neutrinoless double-beta (0νββ) decay of 136Xe in the KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we achieved a significant reduction of the 110mAg contaminant identified in previous searches. Combining the results from the first and second phase, we obtain a lower limit for the 0νββ decay half-life of T0νv1/2>1.07×1026  yr at 90% C.L., an almost sixfold improvement over previous limits. Using commonly adopted nuclear matrix element calculations, the corresponding upper limits on the effective Majorana neutrino mass are in the range 61–165 meV. For the most optimistic nuclear matrix elements, this limit reaches the bottom of the quasidegenerate neutrino mass region

NARCIS 

Search4Dev

UvA-DARE is a service provided by the library of the University of Amsterdam (http://dare.uva.nl)
UvA-DARE (Digital Academic Repository)
Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen
Gando, A.; Gando, Y.; Hachiya, T.; Hayashi, A.; Hayashida, S.; Ikeda, H.; Inoue, K.;
Ishidoshiro, K.; Karino, Y.; Koga, M.; Matsuda, S.; Mitsui, T.; Nakamura, K.; Obara, S.; Oura,
T.; Ozaki, H.; Shimizu, I.; Shirahata, Y.; Shirai, J.; Suzuki, A.; Takai, T.; Tamae, K.; Teraoka,
Y.; Ueshima, K.; Watanabe, H.; Kozlov, A.; Takemoto, Y.; Yoshida, S.; Fushimi, K.; Banks,
T.I.; Berger, B.E.; Fujikawa, B.K.; O'Donnell, T.; Winslow, L.A.; Efremenko, Y.; Karwowski,
H.J.; Markoff, D.M.; Tornow, W.; Detwiler, J.A.; Enomoto, S.; Decowski, M.P.; KamLAND-Zen
Collaboration
Published in:
Physical Review Letters
DOI:
10.1103/PhysRevLett.117.082503
Link to publication
Citation for published version (APA):
Gando, A., Gando, Y., Hachiya, T., Hayashi, A., Hayashida, S., Ikeda, H., Inoue, K., Ishidoshiro, K., Karino, Y.,
Koga, M., Matsuda, S., Mitsui, T., Nakamura, K., Obara, S., Oura, T., Ozaki, H., Shimizu, I., Shirahata, Y., Shirai,
J., ... KamLAND-Zen Collaboration (2016). Search for Majorana Neutrinos Near the Inverted Mass Hierarchy
Region with KamLAND-Zen. Physical Review Letters, 117(8), [082503].
https://doi.org/10.1103/PhysRevLett.117.082503
General rights
It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s),
other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons).
Disclaimer/Complaints regulations
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating
your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask
the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam,
The Netherlands. You will be contacted as soon as possible.
Download date: 04 Feb 2021
Publisher’s Note: Search for Majorana Neutrinos Near the Inverted
Mass Hierarchy Region with KamLAND-Zen
[Phys. Rev. Lett. 117, 082503 (2016)]
A. Gando, Y. Gando, T. Hachiya, A. Hayashi, S. Hayashida, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Karino,
M. Koga, S. Matsuda, T. Mitsui, K. Nakamura, S. Obara, T. Oura, H. Ozaki, I. Shimizu, Y. Shirahata, J. Shirai,
A. Suzuki, T. Takai, K. Tamae, Y. Teraoka, K. Ueshima, H. Watanabe, A. Kozlov, Y. Takemoto, S. Yoshida,
K. Fushimi, T. I. Banks, B. E. Berger, B. K. Fujikawa, T. O’Donnell, L. A. Winslow, Y. Efremenko,
H. J. Karwowski, D. M. Markoff, W. Tornow, J. A. Detwiler, S. Enomoto, and M. P. Decowski
(KamLAND-Zen Collaboration)
(Received 22 August 2016; published 2 September 2016)
DOI: 10.1103/PhysRevLett.117.109903
This paper was published online on 16 August 2016 with the omission of an additional affiliation. The additional
affiliation should appear at the end of the eighth affiliation group as “The University of North Carolina at Chapel Hill,
Chapel Hill, North Carolina 27599, USA.” The affiliation has been corrected as of 22 August 2016. The affiliation is correct
in the printed version of the journal.
PRL 117, 109903 (2016) P HY S I CA L R EV I EW LE T T ER S
week ending
2 SEPTEMBER 2016
0031-9007=16=117(10)=109903(1) 109903-1 © 2016 American Physical Society


Banks, T. I.

Berger, B. E.

Fujikawa, B. K.

O’Donnell, T.

Karwowski, H. J.

Markoff, D. M.

Detwiler, J. A.

Decowski, M. P.

Winslow, Lindley

DSpace@MIT

UvA-DARE

UvA-DARE is a service provided by the library of the University of Amsterdam (http://dare.uva.nl)
UvA-DARE (Digital Academic Repository)
Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen
Gando, A.; Gando, Y.; Hachiya, T.; Hayashi, A.; Hayashida, S.; Ikeda, H.; Inoue, K.;
Ishidoshiro, K.; Karino, Y.; Koga, M.; Matsuda, S.; Mitsui, T.; Nakamura, K.; Obara, S.; Oura,
T.; Ozaki, H.; Shimizu, I.; Shirahata, Y.; Shirai, J.; Suzuki, A.; Takai, T.; Tamae, K.; Teraoka,
Y.; Ueshima, K.; Watanabe, H.; Kozlov, A.; Takemoto, Y.; Yoshida, S.; Fushimi, K.; Banks,
T.I.; Berger, B.E.; Fujikawa, B.K.; O'Donnell, T.; Winslow, L.A.; Efremenko, Y.; Karwowski,
H.J.; Markoff, D.M.; Tornow, W.; Detwiler, J.A.; Enomoto, S.; Decowski, M.P.; KamLAND-Zen
Collaboration
Published in:
Physical Review Letters
DOI:
10.1103/PhysRevLett.117.082503
Link to publication
Citation for published version (APA):
Gando, A., Gando, Y., Hachiya, T., Hayashi, A., Hayashida, S., Ikeda, H., Inoue, K., Ishidoshiro, K., Karino, Y.,
Koga, M., Matsuda, S., Mitsui, T., Nakamura, K., Obara, S., Oura, T., Ozaki, H., Shimizu, I., Shirahata, Y., Shirai,
J., ... KamLAND-Zen Collaboration (2016). Search for Majorana Neutrinos Near the Inverted Mass Hierarchy
Region with KamLAND-Zen. Physical Review Letters, 117(8), [082503].
https://doi.org/10.1103/PhysRevLett.117.082503
General rights
It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s),
other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons).
Disclaimer/Complaints regulations
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating
your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask
the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam,
The Netherlands. You will be contacted as soon as possible.
Download date: 09 Feb 2021
Publisher’s Note: Search for Majorana Neutrinos Near the Inverted
Mass Hierarchy Region with KamLAND-Zen
[Phys. Rev. Lett. 117, 082503 (2016)]
A. Gando, Y. Gando, T. Hachiya, A. Hayashi, S. Hayashida, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Karino,
M. Koga, S. Matsuda, T. Mitsui, K. Nakamura, S. Obara, T. Oura, H. Ozaki, I. Shimizu, Y. Shirahata, J. Shirai,
A. Suzuki, T. Takai, K. Tamae, Y. Teraoka, K. Ueshima, H. Watanabe, A. Kozlov, Y. Takemoto, S. Yoshida,
K. Fushimi, T. I. Banks, B. E. Berger, B. K. Fujikawa, T. O’Donnell, L. A. Winslow, Y. Efremenko,
H. J. Karwowski, D. M. Markoff, W. Tornow, J. A. Detwiler, S. Enomoto, and M. P. Decowski
(KamLAND-Zen Collaboration)
(Received 22 August 2016; published 2 September 2016)
DOI: 10.1103/PhysRevLett.117.109903
This paper was published online on 16 August 2016 with the omission of an additional affiliation. The additional
affiliation should appear at the end of the eighth affiliation group as “The University of North Carolina at Chapel Hill,
Chapel Hill, North Carolina 27599, USA.” The affiliation has been corrected as of 22 August 2016. The affiliation is correct
in the printed version of the journal.
PRL 117, 109903 (2016) P HY S I CA L R EV I EW LE T T ER S
week ending
2 SEPTEMBER 2016
0031-9007=16=117(10)=109903(1) 109903-1 © 2016 American Physical Society


A. Gando

Y. Gando

T. Hachiya

A. Hayashi

S. Hayashida

H. Ikeda

K. Inoue

K. Ishidoshiro

Y. Karino

M. Koga

S. Matsuda

T. Mitsui

K. Nakamura

S. Obara

T. Oura

H. Ozaki

I. Shimizu

Y. Shirahata

J. Shirai

A. Suzuki

T. Takai

K. Tamae

Y. Teraoka

K. Ueshima

H. Watanabe

A. Kozlov

Y. Takemoto

S. Yoshida

K. Fushimi

T. I. Banks

B. E. Berger

B. K. Fujikawa

T. O’Donnell

L. A. Winslow

Y. Efremenko

H. J. Karwowski

D. M. Markoff

W. Tornow

J. A. Detwiler

S. Enomoto

M. P. Decowski

null null

Crossref

http://dspace.mit.edu/bitstream/1721.1/110592/1/PhysRevLett.117.082503.pdf

Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen

Abstract

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eScholarship - University of California

International Migration, Integration and Social Cohesion online publications

NARCIS

Search4Dev

DSpace@MIT

UvA-DARE

Search4Dev

Crossref

International Migration, Integration and Social Cohesion online publications