Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector

J. B. Albert; G. Anton; I. Badhrees; P. S. Barbeau; R. Bayerlein; D. Beck; V. Belov; M. Breidenbach; T. Brunner; G. F. Cao; W. R. Cen; C. Chambers; B. Cleveland; M. Coon; A. Craycraft; W. Cree; T. Daniels; M. Danilov; S. J. Daugherty; J. Daughhetee; J. Davis; S. Delaquis; A. Der Mesrobian-Kabakian; R. DeVoe; T. Didberidze; J. Dilling; A. Dolgolenko; M. J. Dolinski; W. Fairbank; J. Farine; S. Feyzbakhsh; P. Fierlinger; D. Fudenberg; R. Gornea; K. Graham; G. Gratta; C. Hall; E. V. Hansen; J. Hoessl; P. Hufschmidt; M. Hughes; A. Jamil; M. J. Jewell; A. Johnson; S. Johnston; A. Karelin; L. J. Kaufman; T. Koffas; S. Kravitz; R. Krcken; A. Kuchenkov; K. S. Kumar; Y. Lan; D. S. Leonard; G. S. Li; S. Li; C. Licciardi; Y. H. Lin; R. MacLellan; T. Michel; B. Mong; D. Moore; K. Murray; R. Nelson; O. Njoya; A. Odian; I. Ostrovskiy; A. Piepke; A. Pocar; F. Retiere; P. C. Rowson; J. J. Russell; S. Schmidt; A. Schubert; D. Sinclair; V. Stekhanov; M. Tarka; T. Tolba; R. Tsang; P. Vogel; J. -L. Vuilleumier; M. Wagenpfeil; A. Waite; T. Walton; M. Weber; L. J. Wen; U. Wichoski; G. Wrede; L. Yang; Y. -R. Yen; O. Ya Zeldovich; J. Zettlemoyer; T. Ziegler; EXO-200 Collaboration

doi:10.1103/PhysRevLett.120.072701

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Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector

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Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector

J. B. Albert, G. Anton, I. Badhrees, P. S. Barbeau, R. Bayerlein, D. Beck, V. Belov, M. Breidenbach, T. Brunner, G. F. Cao, …

Physical review letters, Vol.120(7), pp.072701-072701

16/02/2018

DOI: https://doi.org/10.1103/PhysRevLett.120.072701

PMID: 29542972

Abstract

Physical Sciences

Physics

Physics, Multidisciplinary

Science & Technology

Results from a search for neutrinoless double-beta decay (0 nu beta beta) of Xe-136 are presented using the first year of data taken with the upgraded EXO-200 detector. Relative to previous searches by EXO-200, the energy resolution of the detector has been improved to sigma/E = 1.23%, the electric field in the drift region has been raised by 50%, and a system to suppress radon in the volume between the cryostat and lead shielding has been implemented. In addition, analysis techniques that improve topological discrimination between 0 nu beta beta and background events have been developed. Incorporating these hardware and analysis improvements, the median 90% confidence level 0 nu beta beta half-life sensitivity after combining with the full data set acquired before the upgrade has increased twofold to 3.7 x 10(25) yr. No statistically significant evidence for 0 nu beta beta is observed, leading to a lower limit on the 0 nu beta beta half-life of 1.8 x 10(25) yr at the 90% confidence level.

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Title: Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector
Creators - without role: J. B. Albert - Indiana University
G. Anton - Friedrich-Alexander-Universität Erlangen-Nürnberg
I. Badhrees - Carleton University
P. S. Barbeau - Duke University
R. Bayerlein - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Beck - University of Illinois Urbana-Champaign
V. Belov - Inst Theoret & Expt Phys, Moscow 117218, Russia
M. Breidenbach - Menlo School
T. Brunner - McGill University
G. F. Cao - Inst High Energy Phys, Beijing 100049, Peoples R China
W. R. Cen - Inst High Energy Phys, Beijing 100049, Peoples R China
C. Chambers - Colorado State University
B. Cleveland - Laurentian University
M. Coon - University of Illinois Urbana-Champaign
A. Craycraft - Colorado State University
W. Cree - Carleton University
T. Daniels - Menlo School
M. Danilov - Inst Theoret & Expt Phys, Moscow 117218, Russia
S. J. Daugherty - Indiana University
J. Daughhetee - University of South Dakota
J. Davis - Menlo School
S. Delaquis - Menlo School
A. Der Mesrobian-Kabakian - Laurentian University
R. DeVoe - Stanford University
T. Didberidze - University of Alabama
J. Dilling - TRIUMF
A. Dolgolenko - Inst Theoret & Expt Phys, Moscow 117218, Russia
M. J. Dolinski - Drexel University
W. Fairbank - Colorado State University
J. Farine - Laurentian University
S. Feyzbakhsh - University of Massachusetts Amherst
P. Fierlinger - Tech Univ Munich, Phys Dept, D-80805 Garching, Germany
D. Fudenberg - Stanford University
R. Gornea - Carleton University
K. Graham - Carleton University
G. Gratta - Stanford University
C. Hall - Univ Maryland, Phys Dept, College Pk, MD 20742 USA
E. V. Hansen - Drexel University
J. Hoessl - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Hufschmidt - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Hughes - University of Alabama
A. Jamil - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. J. Jewell - Stanford University
A. Johnson - Menlo School
S. Johnston - University of Massachusetts Amherst
A. Karelin - Inst Theoret & Expt Phys, Moscow 117218, Russia
L. J. Kaufman - Indiana University
T. Koffas - Carleton University
S. Kravitz - Stanford University
R. Krcken - TRIUMF
A. Kuchenkov - Inst Theoret & Expt Phys, Moscow 117218, Russia
K. S. Kumar - Stony Brook University
Y. Lan - TRIUMF
D. S. Leonard - Ibs
G. S. Li - Stanford University
S. Li - University of Illinois Urbana-Champaign
C. Licciardi - Carleton University
Y. H. Lin - Drexel University
R. MacLellan - University of South Dakota
T. Michel - Friedrich-Alexander-Universität Erlangen-Nürnberg
B. Mong - Menlo School
D. Moore - Yale University
K. Murray - McGill University
R. Nelson - Waste
O. Njoya - Stony Brook University
A. Odian - Menlo School
I. Ostrovskiy - University of Alabama
A. Piepke - University of Alabama
A. Pocar - University of Massachusetts Amherst
F. Retiere - TRIUMF
P. C. Rowson - Menlo School
J. J. Russell - Menlo School
S. Schmidt - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Schubert - Stanford University
D. Sinclair - Carleton University
V. Stekhanov - Inst Theoret & Expt Phys, Moscow 117218, Russia
M. Tarka - Stony Brook University
T. Tolba - Inst High Energy Phys, Beijing 100049, Peoples R China
R. Tsang - University of Alabama
P. Vogel - California Institute of Technology
J. -L. Vuilleumier - University of Bern
M. Wagenpfeil - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Waite - Menlo School
T. Walton - Colorado State University
M. Weber - Stanford University
L. J. Wen - Inst High Energy Phys, Beijing 100049, Peoples R China
U. Wichoski - Laurentian University
G. Wrede - Friedrich-Alexander-Universität Erlangen-Nürnberg
L. Yang - University of Illinois Urbana-Champaign
Y. -R. Yen - Drexel University
O. Ya Zeldovich - Inst Theoret & Expt Phys, Moscow 117218, Russia
J. Zettlemoyer - Indiana University
T. Ziegler - Friedrich-Alexander-Universität Erlangen-Nürnberg
EXO-200 Collaboration
Publication Details: Physical review letters, Vol.120(7), pp.072701-072701
Publisher: Amer Physical Soc
Number of pages: 6
Grant note: IBS in Korea CAS; Chinese Academy of Sciences NSERC in Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) NSF in the U.S.; National Science Foundation (NSF) DFG in Germany; German Research Foundation (DFG) ISTCP in China RFBR in Russia; Russian Foundation for Basic Research (RFBR) DOE; United States Department of Energy (DOE) SNF in Switzerland
Identifiers: 9918995308331
Academic Unit: King Abdulaziz City for Science & Technology
Language: English
Resource Type: Journal article