K
K. E. Downum
Researcher at Stanford University
Publications - 13
Citations - 1115
K. E. Downum is an academic researcher from Stanford University. The author has contributed to research in topics: Solar neutrino & Neutrino oscillation. The author has an hindex of 9, co-authored 13 publications receiving 965 citations.
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Journal ArticleDOI
Constraints on θ13 from a three-flavor oscillation analysis of reactor antineutrinos at KamLAND
A. Gando,Y. Gando,Koichi Ichimura,H. Ikeda,Kunio Inoue,Kunio Inoue,Y. Kibe,Y. Kibe,Yasuhiro Kishimoto,M. Koga,M. Koga,Y. Minekawa,T. Mitsui,T. Morikawa,N. Nagai,K. Nakajima,K. Nakamura,K. Nakamura,K. Narita,I. Shimizu,Yasuhiro Shimizu,J. Shirai,F. Suekane,A. Suzuki,H. Takahashi,N. Takahashi,Y. Takemoto,K. Tamae,Hideki Watanabe,B. D. Xu,H. Yabumoto,Hiroshi Yoshida,Shijun Yoshida,Sanshiro Enomoto,Sanshiro Enomoto,A. Kozlov,Hitoshi Murayama,Hitoshi Murayama,C. Grant,G. Keefer,G. Keefer,A. Piepke,A. Piepke,T. I. Banks,T. Bloxham,J. A. Detwiler,Stuart J. Freedman,Stuart J. Freedman,B. K. Fujikawa,B. K. Fujikawa,Ke Han,R. W. Kadel,T. O'Donnell,H. M. Steiner,D. A. Dwyer,R. D. McKeown,Chao Zhang,B. E. Berger,C. E. Lane,J. Maricic,T. Miletic,T. Miletic,M. Batygov,J. G. Learned,S. Matsuno,M. Sakai,G. A. Horton-Smith,G. A. Horton-Smith,K. E. Downum,Giorgio Gratta,Yu. Efremenko,Yu. Efremenko,O. Perevozchikov,O. Perevozchikov,Hugon J Karwowski,Hugon J Karwowski,D. M. Markoff,D. M. Markoff,Werner Tornow,Werner Tornow,K. M. Heeger,K. M. Heeger,M. P. Decowski,M. P. Decowski +83 more
TL;DR: In this article, the neutrino oscillation parameters Δm^2_(21), θ-, 12, and θ_(13) from a three-flavor analysis of solar and KamLAND data are presented.
Journal ArticleDOI
Partial radiogenic heat model for Earth revealed by geoneutrino measurements
A. Gando,Y. Gando,Koichi Ichimura,H. Ikeda,Kunio Inoue,Kunio Inoue,Y. Kibe,Yasuhiro Kishimoto,M. Koga,M. Koga,Y. Minekawa,T. Mitsui,T. Morikawa,N. Nagai,K. Nakajima,K. Nakajima,K. Nakamura,K. Narita,I. Shimizu,Yasuhiro Shimizu,J. Shirai,F. Suekane,A. Suzuki,H. Takahashi,N. Takahashi,Y. Takemoto,K. Tamae,Hideki Watanabe,B. D. Xu,H. Yabumoto,Hidetomo Yoshida,S. Yoshida,Sanshiro Enomoto,A. Kozlov,Hitoshi Murayama,Hitoshi Murayama,C. Grant,G. Keefer,A. Piepke,A. Piepke,T. I. Banks,T. Bloxham,J. A. Detwiler,Stuart J. Freedman,Stuart J. Freedman,B. K. Fujikawa,B. K. Fujikawa,Ke Han,R. W. Kadel,T. O'Donnell,H. M. Steiner,D. A. Dwyer,R. D. McKeown,Chao Zhang,B. E. Berger,C. E. Lane,J. Maricic,T. Miletic,M. Batygov,J. G. Learned,S. Matsuno,M. Sakai,G. A. Horton-Smith,G. A. Horton-Smith,K. E. Downum,Giorgio Gratta,K. Tolich,Yuri Efremenko,Yuri Efremenko,O. Perevozchikov,Hugon J Karwowski,D. M. Markoff,Werner Tornow,K. M. Heeger,K. M. Heeger,M. P. Decowski +75 more
TL;DR: In this paper, the Kamioka Liquid-Scintillator Antineutrino Detector (LSCAD) was used to estimate geoneutrinos, electrically neutral particles that are emitted during radioactive decay and can pass through the Earth virtually unaffected.
Journal ArticleDOI
Production of radioactive isotopes through cosmic muon spallation in KamLAND
S. Abe,Sanshiro Enomoto,Sanshiro Enomoto,K. Furuno,Y. Gando,H. Ikeda,Kunio Inoue,Kunio Inoue,Y. Kibe,Yasuhiro Kishimoto,M. Koga,M. Koga,Y. Minekawa,T. Mitsui,K. Nakajima,K. Nakajima,K. Nakamura,K. Nakamura,M. Nakamura,I. Shimizu,Yohei Shimizu,J. Shirai,F. Suekane,A. Suzuki,Y. Takemoto,K. Tamae,A. Terashima,Hideki Watanabe,E. Yonezawa,Sei Yoshida,A. Kozlov,Hitoshi Murayama,Hitoshi Murayama,J. Busenitz,T. Classen,T. Classen,C. Grant,G. Keefer,David Leonard,David Leonard,D. McKee,D. McKee,A. Piepke,A. Piepke,T. I. Banks,T. Bloxham,J. A. Detwiler,Stuart J. Freedman,Stuart J. Freedman,B. K. Fujikawa,B. K. Fujikawa,Frederick Gray,Frederick Gray,E. Guardincerri,Leon Hsu,Leon Hsu,Koichi Ichimura,R. Kadel,C. Lendvai,Kam-Biu Luk,T. O'Donnell,H. M. Steiner,Lindley Winslow,Lindley Winslow,D. A. Dwyer,C. Jillings,C. Mauger,C. Mauger,R. D. McKeown,Petr Vogel,Chao Zhang,B. E. Berger,C. E. Lane,J. Maricic,T. Miletic,M. Batygov,J. G. Learned,S. Matsuno,Sandip Pakvasa,J. Foster,G. A. Horton-Smith,G. A. Horton-Smith,A. Tang,S. Dazeley,S. Dazeley,K. E. Downum,Giorgio Gratta,K. Tolich,K. Tolich,W. M. Bugg,Yuri Efremenko,Yuri Efremenko,Yuri Kamyshkov,O. Perevozchikov,Hugon J Karwowski,D. M. Markoff,Werner Tornow,K. M. Heeger,K. M. Heeger,F. Piquemal,J. S. Ricol,M. P. Decowski +101 more
TL;DR: In this article, the authors used the time correlation between detected muons and neutron captures in the KamLAND liquid scintillator antineutrino detector (KamLAND) to determine the yield of neutrino spallation production.
Journal ArticleDOI
Search for extraterrestrial antineutrino sources with the KamLAND detector
A. Gando,Y. Gando,Koichi Ichimura,H. Ikeda,Kunio Inoue,Kunio Inoue,Y. Kibe,Yasuhiro Kishimoto,M. Koga,M. Koga,Y. Minekawa,T. Mitsui,T. Morikawa,N. Nagai,K. Nakajima,K. Nakamura,K. Nakamura,K. Narita,I. Shimizu,Yasuhiro Shimizu,J. Shirai,F. Suekane,A. Suzuki,H. Takahashi,N. Takahashi,Y. Takemoto,K. Tamae,Hideki Watanabe,B. D. Xu,H. Yabumoto,Hidetomo Yoshida,S. Yoshida,Sanshiro Enomoto,Sanshiro Enomoto,A. Kozlov,Hitoshi Murayama,Hitoshi Murayama,C. Grant,G. Keefer,G. Keefer,A. Piepke,A. Piepke,T. I. Banks,T. I. Banks,T. Bloxham,T. Bloxham,J. A. Detwiler,J. A. Detwiler,Stuart J. Freedman,Stuart J. Freedman,Stuart J. Freedman,B. K. Fujikawa,B. K. Fujikawa,B. K. Fujikawa,Ke Han,Ke Han,R. W. Kadel,R. W. Kadel,T. O'Donnell,T. O'Donnell,H. M. Steiner,H. M. Steiner,D. A. Dwyer,R. D. McKeown,Chao Zhang,B. E. Berger,C. E. Lane,J. Maricic,T. Miletic,T. Miletic,M. Batygov,J. G. Learned,S. Matsuno,M. Sakai,G. A. Horton-Smith,G. A. Horton-Smith,K. E. Downum,Giorgio Gratta,Yuri Efremenko,Yuri Efremenko,Yuri Kamyshkov,O. Perevozchikov,O. Perevozchikov,Hugon J Karwowski,D. M. Markoff,Werner Tornow,K. M. Heeger,K. M. Heeger,M. P. Decowski +88 more
TL;DR: In this article, the results of a search for extraterrestrial electron antineutrinos (ν_e) in the energy range 8.3MeV < E_(νe) < 31.8MeV using the KamLAND detector were presented.
Journal ArticleDOI
Publisher's note: Precision measurement of neutrino oscillation parameters with KamLAND
S. Abe,T. Ebihara,Sanshiro Enomoto,K. Furuno,Y. Gando,Koichi Ichimura,H. Ikeda,Kunio Inoue,Y. Kibe,Yasuhiro Kishimoto,M. Koga,Yasuhiro Shimizu,A. Kozlov,Y. Minekawa,T. Mitsui,K. Nakajima,K. Nakamura,M. Nakamura,K. Owada,I. Shimizu,J. Shirai,F. Suekane,A. Suzuki,Y. Takemoto,K. Tamae,A. Terashima,Hideki Watanabe,E. Yonezawa,S. Yoshida,J. Busenitz,T. Classen,C. Grant,G. Keefer,David Leonard,D. McKee,A. Piepke,M. P. Decowski,J. A. Detwiler,Stuart Freedman,B. K. Fujikawa,F. Gray,E. Guardincerri,Leon Hsu,R. W. Kadel,C. Lendvai,Kam-Biu Luk,Hitoshi Murayama,T. O'Donnell,H. M. Steiner,Lindley Winslow,D. A. Dwyer,C. Jillings,C. Mauger,R. D. McKeown,Petr Vogel,Chao Zhang,B. E. Berger,C. E. Lane,J. Maricic,T. Miletic,M. Batygov,J. G. Learned,S. Matsuno,Sandip Pakvasa,J. Foster,G. A. Horton-Smith,A. Tang,Steven Dazeley,K. E. Downum,Giorgio Gratta,K. Tolich,W. Bugg,Yu. Efremenko,Yuri Kamyshkov,O. Perevozchikov,Hugon J Karwowski,D. M. Markoff,Werner Tornow,K. M. Heeger,F. Piquemal,J. S. Ricol +80 more
TL;DR: The KamLAND experiment has determined a precise value for the neutrino oscillation parameter Deltam21(2) and stringent constraints on theta12 and analysis of the reactor spectrum above the inverse beta decay energy threshold, and including geoneutrinos, gives a best fit.