## Abstract

KamLAND has measured the flux of [Formula presented]’s from distant nuclear reactors. We find fewer [Formula presented] events than expected from standard assumptions about [Formula presented] propagation at the 99.95% C.L. In a [Formula presented] exposure the ratio of the observed inverse [Formula presented]-decay events to the expected number without [Formula presented] disappearance is [Formula presented] for [Formula presented] energies [Formula presented]. 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.

Original language | English |
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Pages (from-to) | 6 |

Number of pages | 1 |

Journal | Physical Review Letters |

Volume | 90 |

Issue number | 2 |

DOIs | |

Publication status | Published - 2003 |