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Article: Search for the invisible decay of neutrons with KamLAND.

Araki, T / Enomoto, S / Furuno, K / Gando, Y / Ichimura, K / Ikeda, H / Inoue, K / Kishimoto, Y / Koga, M / Koseki, Y / Maeda, T / Mitsui, T / Motoki, M / Nakajima, K / Nakamura, K / Ogawa, H / Ogawa, M / Owada, K / Ricol, J-S /

Shimizu, I / Shirai, J / Suekane, F / Suzuki, A / Tada, K / Takeuchi, S / Tamae, K / Tsuda, Y / Watanabe, H / Busenitz, J / Classen, T / Djurcic, Z / Keefer, G / Leonard, D S / Piepke, A / Yakushev, E / Berger, B E / Chan, Y D / Decowski, M P / Dwyer, D A / Freedman, S J / Fujikawa, B K / Goldman, J / Gray, F / Heeger, K M / Hsu, L / Lesko, K T / Luk, K-B / Murayama, H / O'Donnell, T / Poon, A W P / Steiner, H M / Winslow, L A / Jillings, C / Mauger, C / McKeown, R D / Vogel, P / Zhang, C / Lane, C E / Miletic, T / Guillian, G / Learned, J G / Maricic, J / Matsuno, S / Pakvasa, S / Horton-Smith, G A / Dazeley, S / Hatakeyama, S / Rojas, A / Svoboda, R / Dieterle, B D / Detwiler, J / Gratta, G / Ishii, K / Tolich, N / Uchida, Y / Batygov, M / Bugg, W / Efremenko, Y / Kamyshkov, Y / Kozlov, A / Nakamura, Y / Karwowski, H J / Markoff, D M / Rohm, R M / Tornow, W / Wendell, R / Chen, M-J / Wang, Y-F / Piquemal, F

Physical review letters

2006 Volume 96, Issue 10, Page(s) 101802

Abstract: The Kamioka Liquid scintillator Anti-Neutrino Detector is used in a search for single neutron or two-neutron intranuclear disappearance that would produce holes in the -shell energy level of (12)C nuclei. Such holes could be created as a result of ... ...

Abstract	The Kamioka Liquid scintillator Anti-Neutrino Detector is used in a search for single neutron or two-neutron intranuclear disappearance that would produce holes in the -shell energy level of (12)C nuclei. Such holes could be created as a result of nucleon decay into invisible modes (inv), e.g., n--> 3v or nn--> 2v. The deexcitation of the corresponding daughter nucleus results in a sequence of space and time-correlated events observable in the liquid scintillator detector. We report on new limits for one- and two-neutron disappearance: tau(n--> inv) > 5.8 x 10(29) years and tau (nn--> inv) > 1.4 x 10(30) years at 90% C.L. These results represent an improvement of factors of approximately 3 and >10(4) and over previous experiments.
Language	English
Publishing date	2006-03-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.96.101802
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Article: Measurement of neutrino oscillation with KamLAND: evidence of spectral distortion.

Araki, T / Eguchi, K / Enomoto, S / Furuno, K / Ichimura, K / Ikeda, H / Inoue, K / Ishihara, K / Iwamoto, T / Kawashima, T / Kishimoto, Y / Koga, M / Koseki, Y / Maeda, T / Mitsui, T / Motoki, M / Nakajima, K / Ogawa, H / Owada, K /

Ricol, J-S / Shimizu, I / Shirai, J / Suekane, F / Suzuki, A / Tada, K / Tajima, O / Tamae, K / Tsuda, Y / Watanabe, H / Busenitz, J / Classen, T / Djurcic, Z / Keefer, G / McKinny, K / Mei, D-M / Piepke, A / Yakushev, E / Berger, B E / Chan, Y D / Decowski, M P / Dwyer, D A / Freedman, S J / Fu, Y / Fujikawa, B K / Goldman, J / Gray, F / Heeger, K M / Lesko, K T / Luk, K-B / Murayama, H / Poon, A W P / Steiner, H M / Winslow, L A / Horton-Smith, G A / Mauger, C / McKeown, R D / Vogel, P / Lane, C E / Miletic, T / Gorham, P W / Guillian, G / Learned, J G / Maricic, J / Matsuno, S / Pakvasa, S / Dazeley, S / Hatakeyama, S / Rojas, A / Svoboda, R / Dieterle, B D / Detwiler, J / Gratta, G / Ishii, K / Tolich, N / Uchida, Y / Batygov, M / Bugg, W / Efremenko, Y / Kamyshkov, Y / Kozlov, A / Nakamura, Y / Gould, C R / Karwowski, H J / Markoff, D M / Messimore, J A / Nakamura, K / Rohm, R M / Tornow, W / Wendell, R / Young, A R / Chen, M-J / Wang, Y-F / Piquemal, F

Physical review letters

2005 Volume 94, Issue 8, Page(s) 81801

Abstract: We present results of a study of neutrino oscillation based on a 766 ton/year exposure of KamLAND to reactor antineutrinos. We observe 258 nu (e) candidate events with energies above 3.4 MeV compared to 365.2+/-23.7 events expected in the absence of ... ...

Abstract	We present results of a study of neutrino oscillation based on a 766 ton/year exposure of KamLAND to reactor antineutrinos. We observe 258 nu (e) candidate events with energies above 3.4 MeV compared to 365.2+/-23.7 events expected in the absence of neutrino oscillation. Accounting for 17.8+/-7.3 expected background events, the statistical significance for reactor nu (e) disappearance is 99.998%. The observed energy spectrum disagrees with the expected spectral shape in the absence of neutrino oscillation at 99.6% significance and prefers the distortion expected from nu (e) oscillation effects. A two-neutrino oscillation analysis of the KamLAND data gives Deltam(2)=7.9(+0.6)(-0.5)x10(-5) eV(2). A global analysis of data from KamLAND and solar-neutrino experiments yields Deltam(2)=7.9(+0.6)(-0.5)x10(-5) eV(2) and tan((2)theta=0.40(+0.10)(-0.07), the most precise determination to date.
Language	English
Publishing date	2005-03-04
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.94.081801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Experimental investigation of geologically produced antineutrinos with KamLAND.

Araki, T / Enomoto, S / Furuno, K / Gando, Y / Ichimura, K / Ikeda, H / Inoue, K / Kishimoto, Y / Koga, M / Koseki, Y / Maeda, T / Mitsui, T / Motoki, M / Nakajima, K / Ogawa, H / Ogawa, M / Owada, K / Ricol, J-S / Shimizu, I /

Shirai, J / Suekane, F / Suzuki, A / Tada, K / Takeuchi, S / Tamae, K / Tsuda, Y / Watanabe, H / Busenitz, J / Classen, T / Djurcic, Z / Keefer, G / Leonard, D / Piepke, A / Yakushev, E / Berger, B E / Chan, Y D / Decowski, M P / Dwyer, D A / Freedman, S J / Fujikawa, B K / Goldman, J / Gray, F / Heeger, K M / Hsu, L / Lesko, K T / Luk, K-B / Murayama, H / O'Donnell, T / Poon, A W P / Steiner, H M / Winslow, L A / Mauger, C / McKeown, R D / Vogel, P / Lane, C E / Miletic, T / Guillian, G / Learned, J G / Maricic, J / Matsuno, S / Pakvasa, S / Horton-Smith, G A / Dazeley, S / Hatakeyama, S / Rojas, A / Svoboda, R / Dieterle, B D / Detwiler, J / Gratta, G / Ishii, K / Tolich, N / Uchida, Y / Batygov, M / Bugg, W / Efremenko, Y / Kamyshkov, Y / Kozlov, A / Nakamura, Y / Karwowski, H J / Markoff, D M / Nakamura, K / Rohm, R M / Tornow, W / Wendell, R / Chen, M-J / Wang, Y-F / Piquemal, F

Nature

2005 Volume 436, Issue 7050, Page(s) 499–503

Abstract: The detection of electron antineutrinos produced by natural radioactivity in the Earth could yield important geophysical information. The Kamioka liquid scintillator antineutrino detector (KamLAND) has the sensitivity to detect electron antineutrinos ... ...

Abstract	The detection of electron antineutrinos produced by natural radioactivity in the Earth could yield important geophysical information. The Kamioka liquid scintillator antineutrino detector (KamLAND) has the sensitivity to detect electron antineutrinos produced by the decay of 238U and 232Th within the Earth. Earth composition models suggest that the radiogenic power from these isotope decays is 16 TW, approximately half of the total measured heat dissipation rate from the Earth. Here we present results from a search for geoneutrinos with KamLAND. Assuming a Th/U mass concentration ratio of 3.9, the 90 per cent confidence interval for the total number of geoneutrinos detected is 4.5 to 54.2. This result is consistent with the central value of 19 predicted by geophysical models. Although our present data have limited statistical power, they nevertheless provide by direct means an upper limit (60 TW) for the radiogenic power of U and Th in the Earth, a quantity that is currently poorly constrained.
Language	English
Publishing date	2005-07-28
Publishing country	England
Document type	Journal Article
ZDB-ID	120714-3
ISSN	1476-4687 ; 0028-0836
ISSN (online)	1476-4687
ISSN	0028-0836
DOI	10.1038/nature03980
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Article: High sensitivity search for nu;e's from the sun and other sources at KamLAND.

Eguchi, K / Enomoto, S / Furuno, K / Ikeda, H / Ikeda, K / Inoue, K / Ishihara, K / Iwamoto, T / Kawashima, T / Kishimoto, Y / Koga, M / Koseki, Y / Maeda, T / Mitsui, T / Motoki, M / Nakajima, K / Ogawa, H / Owada, K / Piquemal, F /

Shimizu, I / Shirai, J / Suekane, F / Suzuki, A / Tada, K / Tajima, O / Takayama, T / Tamae, K / Watanabe, H / Busenitz, J / Djurcic, Z / McKinny, K / Mei, D-M / Piepke, A / Yakushev, E / Berger, B E / Chan, Y D / Decowski, M P / Dwyer, D A / Freedman, S J / Fu, Y / Fujikawa, B K / Goldman, J / Heeger, K M / Lesko, K T / Luk, K-B / Murayama, H / Nygren, D R / Okada, C E / Poon, A W P / Steiner, H M / Winslow, L A / Horton-Smith, G A / Mauger, C / McKeown, R D / Tipton, B / Vogel, P / Lane, C E / Miletic, T / Gorham, P W / Guillian, G / Learned, J G / Maricic, J / Matsuno, S / Pakvasa, S / Dazeley, S / Hatakeyama, S / Svoboda, R / Dieterle, B D / DiMauro, M / Detwiler, J / Gratta, G / Ishii, K / Tolich, N / Uchida, Y / Batygov, M / Bugg, W / Efremenko, Y / Kamyshkov, Y / Kozlov, A / Nakamura, Y / Gould, C R / Karwowski, H J / Markoff, D M / Messimore, J A / Nakamura, K / Rohm, R M / Tornow, W / Young, A R / Chen, M-J / Wang, Y-F

Physical review letters

2004 Volume 92, Issue 7, Page(s) 71301

Abstract: Data corresponding to a KamLAND detector exposure of 0.28 kton yr has been used to search for nu;(e)'s in the energy range 8.3

Abstract	Data corresponding to a KamLAND detector exposure of 0.28 kton yr has been used to search for nu;(e)'s in the energy range 8.3<E(nu;(e))<14.8 MeV. No candidates were found for an expected background of 1.1+/-0.4 events. This result can be used to obtain a limit on nu;(e) fluxes of any origin. Assuming that all nu;(e) flux has its origin in the Sun and has the characteristic 8B solar nu(e) energy spectrum, we obtain an upper limit of 3.7 x 10(2) cm(-2) s(-1) (90% C.L.) on the nu;(e) flux. We interpret this limit, corresponding to 2.8 x 10(-4) of the standard solar model 8B nu(e) flux, in the framework of spin-flavor precession and neutrino decay models.<br />
Language	English
Publishing date	2004-02-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.92.071301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: First results from KamLAND: evidence for reactor antineutrino disappearance.

Eguchi, K / Enomoto, S / Furuno, K / Goldman, J / Hanada, H / Ikeda, H / Ikeda, K / Inoue, K / Ishihara, K / Itoh, W / Iwamoto, T / Kawaguchi, T / Kawashima, T / Kinoshita, H / Kishimoto, Y / Koga, M / Koseki, Y / Maeda, T / Mitsui, T /

Motoki, M / Nakajima, K / Nakajima, M / Nakajima, T / Ogawa, H / Owada, K / Sakabe, T / Shimizu, I / Shirai, J / Suekane, F / Suzuki, A / Tada, K / Tajima, O / Takayama, T / Tamae, K / Watanabe, H / Busenitz, J / Djurcic, Z / McKinny, K / Mei, D-M / Piepke, A / Yakushev, E / Berger, B E / Chan, Y D / Decowski, M P / Dwyer, D A / Freedman, S J / Fu, Y / Fujikawa, B K / Heeger, K M / Lesko, K T / Luk, K-B / Murayama, H / Nygren, D R / Okada, C E / Poon, A W P / Steiner, H M / Winslow, L A / Horton-Smith, G A / McKeown, R D / Ritter, J / Tipton, B / Vogel, P / Lane, C E / Miletic, T / Gorham, P W / Guillian, G / Learned, J G / Maricic, J / Matsuno, S / Pakvasa, S / Dazeley, S / Hatakeyama, S / Murakami, M / Svoboda, R C / Dieterle, B D / DiMauro, M / Detwiler, J / Gratta, G / Ishii, K / Tolich, N / Uchida, Y / Batygov, M / Bugg, W / Cohn, H / Efremenko, Y / Kamyshkov, Y / Kozlov, A / Nakamura, Y / De Braeckeleer, L / Gould, C R / Karwowski, H J / Markoff, D M / Messimore, J A / Nakamura, K / Rohm, R M / Tornow, W / Young, A R / Wang, Y-F

Physical review letters

2003 Volume 90, Issue 2, Page(s) 21802

Abstract: KamLAND has measured the flux of nu;(e)'s from distant nuclear reactors. We find fewer nu;(e) events than expected from standard assumptions about nu;(e) propagation at the 99.95% C.L. In a 162 ton.yr exposure the ratio of the observed inverse beta-decay ...

Abstract	KamLAND has measured the flux of nu;(e)'s from distant nuclear reactors. We find fewer nu;(e) events than expected from standard assumptions about nu;(e) propagation at the 99.95% C.L. In a 162 ton.yr exposure the ratio of the observed inverse beta-decay events to the expected number without nu;(e) disappearance is 0.611+/-0.085(stat)+/-0.041(syst) for nu;(e) energies >3.4 MeV. In the context of two-flavor neutrino oscillations with CPT invariance, all solutions to the solar neutrino problem except for the "large mixing angle" region are excluded.
Language	English
Publishing date	2003-01-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.90.021802
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Article: Limits on the neutrino magnetic moment using 1496 days of Super-Kamiokande-I solar neutrino data.

Liu, D W / Ashie, Y / Fukuda, S / Fukuda, Y / Ishihara, K / Itow, Y / Koshio, Y / Minamino, A / Miura, M / Moriyama, S / Nakahata, M / Namba, T / Nambu, R / Obayashi, Y / Sakurai, N / Shiozawa, M / Suzuki, Y / Takeuchi, H / Takeuchi, Y /

Yamada, S / Ishitsuka, M / Kajita, T / Kaneyuki, K / Nakayama, S / Okada, A / Ooyabu, T / Saji, C / Desai, S / Earl, M / Kearns, E / Messier, M D / Stone, J L / Sulak, L R / Walter, C W / Wang, W / Barszczak, T / Casper, D / Cravens, J P / Gajewski, W / Kropp, W R / Mine, S / Smy, M B / Sobel, H W / Sterner, C W / Vagins, M R / Ganezer, K S / Hill, J / Keig, W E / Kim, J Y / Lim, I T / Ellsworth, R W / Tasaka, S / Kibayashi, A / Learned, J G / Matsuno, S / Takemori, D / Hayato, Y / Ichikawa, A K / Ishida, T / Ishii, T / Iwashita, T / Kameda, J / Kobayashi, T / Maruyama, T / Nakamura, K / Nitta, K / Oyama, Y / Sakuda, M / Totsuka, Y / Suzuki, A T / Hasegawa, M / Hayashi, K / Inagaki, T / Kato, I / Maesaka, H / Morita, T / Nakaya, T / Nishikawa, K / Sasaki, T / Ueda, S / Yamamoto, S / Haines, T J / Dazeley, S / Hatakeyama, S / Svoboda, R / Blaufuss, E / Goodman, J A / Guillian, G / Sullivan, G W / Turcan, D / Scholberg, K / Habig, A / Ackermann, M / Jung, C K / Kato, T / Kobayashi, K / Martens, K / Malek, M / Mauger, C / McGrew, C / Sharkey, E / Viren, B / Yanagisawa, C / Toshito, T / Mitsuda, C / Miyano, K / Shibata, T / Ishii, J / Kajiyama, Y / Kuno, Y / Nagashima, Y / Takita, M / Yoshida, M / Kim, H I / Kim, S B / Yoo, J / Okazawa, H / Ishizuka, T / Choi, Y / Seo, H K / Gando, Y / Hasegawa, T / Inoue, K / Shirai, J / Suzuki, A / Koshiba, M / Hashimoto, T / Nakajima, Y / Nishijima, K / Ishino, H / Morii, M / Nishimura, R / Watanabe, Y / Kielczewska, D / Zalipska, J / Gran, R / Shiraishi, K K / Washburn, K / Wilkes, R J

Physical review letters

2004 Volume 93, Issue 2, Page(s) 21802

Abstract: A search for a nonzero neutrino magnetic moment has been conducted using 1496 live days of solar neutrino data from Super-Kamiokande-I. Specifically, we searched for distortions to the energy spectrum of recoil electrons arising from magnetic scattering ... ...

Abstract	A search for a nonzero neutrino magnetic moment has been conducted using 1496 live days of solar neutrino data from Super-Kamiokande-I. Specifically, we searched for distortions to the energy spectrum of recoil electrons arising from magnetic scattering due to a nonzero neutrino magnetic moment. In the absence of a clear signal, we found micro(nu)</=(3.6x10(-10))micro(B) at 90% C.L. by fitting to the Super-Kamiokande day-night spectra. The fitting took into account the effect of neutrino oscillation on the shapes of energy spectra. With additional information from other solar neutrino and KamLAND experiments constraining the oscillation region, a limit of micro(nu)</=(1.1x10(-10))micro(B) at 90% C.L. was obtained.<br />
Language	English
Publishing date	2004-07-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.93.021802
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Evidence for an oscillatory signature in atmospheric neutrino oscillations.

Ashie, Y / Hosaka, J / Ishihara, K / Itow, Y / Kameda, J / Koshio, Y / Minamino, A / Mitsuda, C / Miura, M / Moriyama, S / Nakahata, M / Namba, T / Nambu, R / Obayashi, Y / Shiozawa, M / Suzuki, Y / Takeuchi, Y / Taki, K / Yamada, S /

Ishitsuka, M / Kajita, T / Kaneyuki, K / Nakayama, S / Okada, A / Okumura, K / Ooyabu, T / Saji, C / Takenaga, Y / Desai, S / Kearns, E / Likhoded, S / Stone, J L / Sulak, L R / Walter, C W / Wang, W / Goldhaber, M / Casper, D / Cravens, J P / Gajewski, W / Kropp, W R / Liu, D W / Mine, S / Smy, M B / Sobel, H W / Sterner, C W / Vagins, M R / Ganezer, K S / Hill, J / Keig, W E / Jang, J S / Kim, J Y / Lim, I T / Ellsworth, R W / Tasaka, S / Guillian, G / Kibayashi, A / Learned, J G / Matsuno, S / Takemori, D / Messier, M D / Hayato, Y / Ichikawa, A K / Ishida, T / Ishii, T / Iwashita, T / Kobayashi, T / Maruyama, T / Nakamura, K / Nitta, K / Oyama, Y / Sakuda, M / Totsuka, Y / Suzuki, A T / Hasegawa, M / Hayashi, K / Inagaki, T / Kato, I / Maesaka, H / Morita, T / Nakaya, T / Nishikawa, K / Sasaki, T / Ueda, S / Yamamoto, S / Haines, T J / Dazeley, S / Hatakeyama, S / Svoboda, R / Blaufuss, E / Goodman, J A / Sullivan, G W / Turcan, D / Scholberg, K / Habig, A / Fukuda, Y / Jung, C K / Kato, T / Kobayashi, K / Malek, M / Mauger, C / McGrew, C / Sarrat, A / Sharkey, E / Yanagisawa, C / Toshito, T / Miyano, K / Tamura, N / Ishii, J / Kuno, Y / Nagashima, Y / Takita, M / Yoshida, M / Kim, S B / Yoo, J / Okazawa, H / Ishizuka, T / Choi, Y / Seo, H K / Gando, Y / Hasegawa, T / Inoue, K / Shirai, J / Suzuki, A / Koshiba, M / Nakajima, Y / Nishijima, K / Harada, T / Ishino, H / Nishimura, R / Watanabe, Y / Kielczewska, D / Zalipska, J / Berns, H G / Gran, R / Shiraishi, K K / Stachyra, A / Washburn, K / Wilkes, R J

Physical review letters

2004 Volume 93, Issue 10, Page(s) 101801

Abstract: Muon neutrino disappearance probability as a function of neutrino flight length L over neutrino energy E was studied. A dip in the L/E distribution was observed in the data, as predicted from the sinusoidal flavor transition probability of neutrino ... ...

Abstract	Muon neutrino disappearance probability as a function of neutrino flight length L over neutrino energy E was studied. A dip in the L/E distribution was observed in the data, as predicted from the sinusoidal flavor transition probability of neutrino oscillation. The observed L/E distribution constrained nu(micro)<-->nu(tau) neutrino oscillation parameters; 1.9x10(-3)<Deltam(2)<3.0x10(-3) eV(2) and sin((2)2theta>0.90 at 90% confidence level.
Language	English
Publishing date	2004-09-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.93.101801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Search for supernova relic neutrinos at Super-Kamiokande.

Malek, M / Morii, M / Fukuda, S / Fukuda, Y / Ishitsuka, M / Itow, Y / Kajita, T / Kameda, J / Kaneyuki, K / Kobayashi, K / Koshio, Y / Miura, M / Moriyama, S / Nakahata, M / Nakayama, S / Namba, T / Okada, A / Ooyabu, T / Saji, C /

Sakurai, N / Shiozawa, M / Suzuki, Y / Takeuchi, H / Takeuchi, Y / Totsuka, Y / Yamada, S / Desai, S / Earl, M / Kearns, E / Messier, M D / Stone, J L / Sulak, L R / Walter, C W / Goldhaber, M / Barszczak, T / Casper, D / Gajewski, W / Kropp, W R / Mine, S / Liu, D W / Smy, M B / Sobel, H W / Vagins, M R / Gago, A / Ganezer, K S / Keig, W E / Ellsworth, R W / Tasaka, S / Kibayashi, A / Learned, J G / Matsuno, S / Takemori, D / Hayato, Y / Ishii, T / Kobayashi, T / Maruyama, T / Nakamura, K / Obayashi, Y / Oyama, Y / Sakuda, M / Yoshida, M / Kohama, M / Iwashita, T / Suzuki, A T / Ichikawa, A / Inagaki, T / Kato, I / Nakaya, T / Nishikawa, K / Haines, T J / Dazeley, S / Hatakeyama, S / Svoboda, R / Blaufuss, E / Goodman, J A / Guillian, G / Sullivan, G W / Turcan, D / Scholberg, K / Habig, A / Ackermann, M / Hill, J / Jung, C K / Martens, K / Mauger, C / McGrew, C / Sharkey, E / Viren, B / Yanagisawa, C / Toshito, T / Mitsuda, C / Miyano, K / Shibata, T / Kajiyama, Y / Nagashima, Y / Nitta, K / Takita, M / Kim, H I / Kim, S B / Yoo, J / Okazawa, H / Ishizuka, T / Etoh, M / Gando, Y / Hasegawa, T / Inoue, K / Ishihara, K / Shirai, J / Suzuki, A / Koshiba, M / Hatakeyama, Y / Ichikawa, Y / Koike, M / Nishijima, K / Ishino, H / Nishimura, R / Watanabe, Y / Kielczewska, D / Berns, H G / Boyd, S C / Stachyra, A L / Wilkes, R J

Physical review letters

2003 Volume 90, Issue 6, Page(s) 61101

Abstract: A search for the relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector. This analysis looked for electron-type antineutrinos that had produced a positron with an energy greater ... ...

Abstract	A search for the relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector. This analysis looked for electron-type antineutrinos that had produced a positron with an energy greater than 18 MeV. In the absence of a signal, 90% C.L. upper limits on the total flux were set for several theoretical models; these limits ranged from 20 to 130 macro nu(e) cm(-2) s(-1). Additionally, an upper bound of 1.2 macro nu(e) cm(-2) s(-1) was set for the supernova relic neutrino flux in the energy region E(nu)>19.3 MeV.
Language	English
Publishing date	2003-02-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.90.061101
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Search for nu(e) from the sun at Super-Kamiokande-I.

Gando, Y / Fukuda, S / Fukuda, Y / Ishitsuka, M / Itow, Y / Kajita, T / Kameda, J / Kaneyuki, K / Kobayashi, K / Koshio, Y / Miura, M / Moriyama, S / Nakahata, M / Nakayama, S / Namba, T / Obayashi, Y / Okada, A / Ooyabu, T / Saji, C /

Sakurai, N / Shiozawa, M / Suzuki, Y / Takeuchi, H / Takeuchi, Y / Totsuka, Y / Yamada, S / Desai, S / Earl, M / Kearns, E / Messier, M D / Stone, J L / Sulak, L R / Walter, C W / Goldhaber, M / Barszczak, T / Casper, D / Gajewski, W / Kropp, W R / Mine, S / Liu, D W / Smy, M B / Sobel, H W / Vagins, M R / Gago, A / Ganezer, K S / Hill, J / Keig, W E / Ellsworth, R W / Tasaka, S / Kibayashi, A / Learned, J G / Matsuno, S / Takemori, D / Hayato, Y / Ichikawa, A K / Ishii, T / Kobayashi, T / Maruyama, T / Nakamura, K / Oyama, Y / Sakuda, M / Yoshida, M / Kohama, M / Iwashita, T / Suzuki, A T / Inagaki, T / Kato, I / Nakaya, T / Nishikawa, K / Haines, T J / Dazeley, S / Hatakeyama, S / Svoboda, R / Blaufuss, E / Chen, M L / Goodman, J A / Guillian, G / Sullivan, G W / Turcan, D / Scholberg, K / Habig, A / Ackermann, M / Jung, C K / Martens, K / Malek, M / Mauger, C / McGrew, C / Sharkey, E / Viren, B / Yanagisawa, C / Toshito, T / Mitsuda, C / Miyano, K / Shibata, T / Kajiyama, Y / Nagashima, Y / Nitta, K / Takita, M / Kim, H I / Kim, S B / Yoo, J / Okazawa, H / Ishizuka, T / Etoh, M / Hasegawa, T / Inoue, K / Ishihara, K / Shirai, J / Suzuki, A / Koshiba, M / Hatakeyama, Y / Ichikawa, Y / Koike, M / Nishijima, K / Ishino, H / Morii, M / Nishimura, R / Watanabe, Y / Kielczewska, D / Berns, H G / Boyd, S C / Stachyra, A L / Wilkes, R J

Physical review letters

2003 Volume 90, Issue 17, Page(s) 171302

Abstract: We present the results of a search for low energy nu(e) from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an upper limit for the conversion probability to nu(e) of the 8B solar neutrino. This ...

Abstract	We present the results of a search for low energy nu(e) from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an upper limit for the conversion probability to nu(e) of the 8B solar neutrino. This conversion limit is 0.8% (90% C.L.) of the standard solar model's neutrino flux for total energy=8-20 MeV. We also set a flux limit for monochromatic nu(e) for E(nu(e))=10-17 MeV.
Language	English
Publishing date	2003-05-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.90.171302
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Solar 8B and hep neutrino measurements from 1258 days of Super-Kamiokande data.

Fukuda, S / Fukuda, Y / Ishitsuka, M / Itow, Y / Kajita, T / Kameda, J / Kaneyuki, K / Kobayashi, K / Koshio, Y / Miura, M / Moriyama, S / Nakahata, M / Nakayama, S / Okada, A / Sakurai, N / Shiozawa, M / Suzuki, Y / Takeuchi, H / Takeuchi, Y /

Toshito, T / Totsuka, Y / Yamada, S / Desai, S / Earl, M / Kearns, E / Messier, M D / Scholberg, K / Stone, J L / Sulak, L R / Walter, C W / Goldhaber, M / Barszczak, T / Casper, D / Gajewski, W / Kropp, W R / Mine, S / Liu, D W / Price, L R / Smy, M B / Sobel, H W / Vagins, M R / Ganezer, K S / Keig, W E / Ellsworth, R W / Tasaka, S / Kibayashi, A / Learned, J G / Matsuno, S / Takemori, D / Hayato, Y / Ishii, T / Kobayashi, T / Nakamura, K / Obayashi, Y / Oyama, Y / Sakai, A / Sakuda, M / Kohama, M / Suzuki, A T / Inagaki, T / Nakaya, T / Nishikawa, K / Haines, T J / Blaufuss, E / Dazeley, S / Lee, K B / Svoboda, R / Goodman, J A / Guillian, G / Sullivan, G W / Turcan, D / Habig, A / Hill, J / Jung, C K / Martens, K / Malek, M / Mauger, C / McGrew, C / Sharkey, E / Viren, B / Yanagisawa, C / Mitsuda, C / Miyano, K / Saji, C / Shibata, T / Kajiyama, Y / Nagashima, Y / Nitta, K / Takita, M / Yoshida, M / Kim, H I / Kim, S B / Yoo, J / Okazawa, H / Ishizuka, T / Etoh, M / Gando, Y / Hasegawa, T / Inoue, K / Ishihara, K / Maruyama, T / Shirai, J / Suzuki, A / Koshiba, M / Hatakeyama, Y / Ichikawa, Y / Koike, M / Nishijima, K / Fujiyasu, H / Ishino, H / Morii, M / Watanabe, Y / Golebiewska, U / Kielczewska, D / Boyd, S C / Stachyra, A L / Wilkes, R J / Young, K K

Physical review letters

2001 Volume 86, Issue 25, Page(s) 5651–5655

Abstract: Solar neutrino measurements from 1258 days of data from the Super-Kamiokande detector are presented. The measurements are based on recoil electrons in the energy range 5.0-20.0 MeV. The measured solar neutrino flux is 2.32+/-0.03(stat)+0.08-0.07(syst)x10( ...

Abstract	Solar neutrino measurements from 1258 days of data from the Super-Kamiokande detector are presented. The measurements are based on recoil electrons in the energy range 5.0-20.0 MeV. The measured solar neutrino flux is 2.32+/-0.03(stat)+0.08-0.07(syst)x10(6) cm(-2) x s(-1), which is 45.1+/-0.5(stat)+1.6-1.4(syst)% of that predicted by the BP2000 SSM. The day vs night flux asymmetry (Phi(n)-Phi(d))/Phi(average) is 0.033+/-0.022(stat)+0.013-0.012(syst). The recoil electron energy spectrum is consistent with no spectral distortion. For the hep neutrino flux, we set a 90% C.L. upper limit of 40x10(3) cm(-2) x s(-1), which is 4.3 times the BP2000 SSM prediction.
Language	English
Publishing date	2001-06-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.86.5651
Database	MEDical Literature Analysis and Retrieval System OnLINE

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