K. Graham
Queen's University
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Publication
Featured researches published by K. Graham.
Physical Review Letters | 2012
M. Auger; A. P. Waite; W. Feldmeier; T. N. Johnson; M. Hughes; P. C. Rowson; A. Kuchenkov; J. D. Wright; J.-L. Vuilleumier; T. Walton; K. Graham; C. G. Davis; A. Pocar; David A. Sinclair; K. Hall; A. Odian; S. Delaquis; K.S. Kumar; L. J. Kaufman; R. MacLellan; K. Twelker; M. Breidenbach; R. DeVoe; A. Burenkov; G. Giroux; S. Herrin; A. Sabourov; T. Brunner; P. Vogel; L. Yang
We report on a search for neutrinoless double-beta decay of 136Xe with EXO-200. No signal is observed for an exposure of 32.5 kg yr, with a background of ∼1.5×10(-3) kg(-1) yr(-1) keV(-1) in the ±1σ region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay T(1/2)(0νββ)(136Xe)>1.6×10(25) yr (90% C.L.), corresponding to effective Majorana masses of less than 140-380 meV, depending on the matrix element calculation.
Physical Review C | 2013
J. B. Albert; M. Auger; D. J. Auty; P. S. Barbeau; E. Beauchamp; D. Beck; V. Belov; C. Benitez-Medina; J. Bonatt; M. Breidenbach; T. Brunner; A. Burenkov; G. F. Cao; C. Chambers; J. Chaves; B. T. Cleveland; S. Cook; T. Daniels; M. Danilov; S. J. Daugherty; C. G. Davis; James G. Davis; S. Delaquis; R. DeVoe; A. Dobi; M. J. Dolinski; A. Dolgolenko; M. Dunford; W. Fairbank; J. Farine
We report on an improved measurement of the 2\nu \beta \beta\ half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise estimate of the fiducial mass used for the measurement, resulting in a small systematic uncertainty. We also discuss in detail the data analysis methods used for double-beta decay searches with EXO-200, while emphasizing those directly related to the present measurement. The Xe-136 2\nu \beta \beta\ half-life is found to be 2.165 +- 0.016 (stat) +- 0.059 (sys) x 10^21 years. This is the most precisely measured half-life of any 2\nu \beta \beta\ decay to date.
Physical Review C | 2013
J. B. Albert; T. N. Johnson; R. DeVoe; S. Kravitz; J. D. Wright; M. P. Rozo; T. Brunner; D. J. Auty; S. Cook; R. Killick; S. Herrin; W. Fairbank; P. Vogel; M. Dunford; R. Gornea; U. Wichoski; A. Dolgolenko; J. J. Russell; C. Hargrove; E. Beauchamp; A. Karelin; D. Beck; M. J. Dolinski; S. Slutsky; W. Feldmeier; A. Odian; K.S. Kumar; A. Burenkov; M. Tarka; S. Delaquis
We report on an improved measurement of the 2\nu \beta \beta\ half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise estimate of the fiducial mass used for the measurement, resulting in a small systematic uncertainty. We also discuss in detail the data analysis methods used for double-beta decay searches with EXO-200, while emphasizing those directly related to the present measurement. The Xe-136 2\nu \beta \beta\ half-life is found to be 2.165 +- 0.016 (stat) +- 0.059 (sys) x 10^21 years. This is the most precisely measured half-life of any 2\nu \beta \beta\ decay to date.
Physical Review Letters | 2012
M. Auger; D. J. Auty; P. S. Barbeau; E. Beauchamp; V. Belov; C. Benitez-Medina; M. Breidenbach; T. Brunner; A. Burenkov; B. T. Cleveland; S. Cook; T. Daniels; M. Danilov; C. G. Davis; S. Delaquis; R. DeVoe; A. Dobi; M. J. Dolinski; A. Dolgolenko; M. Dunford; W. Fairbank; J. Farine; W. Feldmeier; P. Fierlinger; D. Franco; G. Giroux; R. Gornea; K. Graham; G. Gratta; C. Hall
We report on a search for neutrinoless double-beta decay of 136Xe with EXO-200. No signal is observed for an exposure of 32.5 kg yr, with a background of ∼1.5×10(-3) kg(-1) yr(-1) keV(-1) in the ±1σ region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay T(1/2)(0νββ)(136Xe)>1.6×10(25) yr (90% C.L.), corresponding to effective Majorana masses of less than 140-380 meV, depending on the matrix element calculation.
Physical Review Letters | 2018
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. T. Cleveland; M. Coon; A. Craycraft; W. Cree; T. Daniels; M. Danilov; S. J. Daugherty; J. Daughhetee; James G. Davis; S. Delaquis; A. Der Mesrobian-Kabakian; R. DeVoe; T. Didberidze; J. Dilling; A. Dolgolenko; M. J. Dolinski; W. Fairbank; J. Farine
arXiv: High Energy Physics - Experiment | 2017
J. B. Albert; Yingxi Lin; R. DeVoe; S. Kravitz; J. Daughhetee; A. G. Schubert; Sheng Li; T. Brunner; M. Breidenbach; P. Vogel; Thilo Michel; R. Gornea; K. Murray; U. Wichoski; W. Fairbank; A. Dolgolenko; J. J. Russell; T. Tolba; M. Wagenpfeil; A. Karelin; D. Beck; M. J. Dolinski; A. Odian; K.S. Kumar; A. Jamil; M. Tarka; S. Delaquis; M. G. Marino; O. Njoya; O. Ya. Zeldovich
Physical Review C | 2016
J. B. Albert; D. J. Auty; P. S. Barbeau; D. Beck; V. Belov; M. Breidenbach; T. Brunner; A. Burenkov; G. F. Cao; C. Chambers; J. Chaves; B. T. Cleveland; M. Coon; A. Craycraft; T. Daniels; M. Danilov; S. J. Daugherty; James G. Davis; S. Delaquis; A. Der Mesrobian-Kabakian; R. DeVoe; T. Didberidze; J. Dilling; A. Dolgolenko; M. J. Dolinski; M. Dunford; W. Fairbank; J. Farine; W. Feldmeier; S. Feyzbakhsh
Archive | 2015
J. B. Albert; D. J. Auty; P. S. Barbeau; D. Beck; V. Belov; M. Breidenbach; T. Brunner; A. Burenkov; G. F. Cao; C. Chambers; J. Chaves; B. T. Cleveland; M. Coon; A. Craycraft; T. Daniels; M. Danilov; S. J. Daugherty; James G. Davis; S. Delaquis; A. Der Mesrobian Kabakian; R. DeVoe; T. Didberidze; J. Dilling; A. Dolgolenko; M. J. Dolinski; M. Dunford; W. Fairbank; J. Farine; W. Feldmeier; S. Feyzbakhsh
Archive | 2015
J. B. Albert; D. J. Auty; P. S. Barbeau; D. Beck; V. Belov; M. Breidenbach; T. Brunner; A. Burenkov; G. F. Cao; C. Chambers; B. T. Cleveland; M. Coon; A. Craycraft; T. Daniels; M. Danilov; S. J. Daugherty; James G. Davis; S. Delaquis; A. Der Mesrobian Kabakian; R. DeVoe; T. Didberidze; J. Dilling; A. Dolgolenko; M. J. Dolinski; M. Dunford; W. Fairbank; J. Farine; W. Feldmeier; S. Feyzbakhsh; P. Fierlinger
