skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Search for the Invisible Decay of Neutrons with KamLAND

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 s-shell energy level of {sup 12}C nuclei. Such holes could be created as a result of nucleon decay into invisible modes (inv), e.g., n{yields}3{nu} or nn{yields}2{nu}. 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{yields}inv)>5.8x10{sup 29} years and {tau}(nn{yields}inv)>1.4x10{sup 30} years at 90% C.L. These results represent an improvement of factors of {approx}3 and >10{sup 4} over previous experiments.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Research Center for Neutrino Science, Tohoku University, Sendai 980-8578 (Japan) (and others)
Publication Date:
OSTI Identifier:
20778796
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevLett.96.101802; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANTINEUTRINOS; CARBON 12; ENERGY LEVELS; HOLES; NEUTRONS; PARTICLE DECAY; SCINTILLATION COUNTERS

Citation Formats

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., and Shimizu, I. Search for the Invisible Decay of Neutrons with KamLAND. United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.96.1.
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. Search for the Invisible Decay of Neutrons with KamLAND. United States. doi:10.1103/PHYSREVLETT.96.1.
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., and Shimizu, I. Fri . "Search for the Invisible Decay of Neutrons with KamLAND". United States. doi:10.1103/PHYSREVLETT.96.1.
@article{osti_20778796,
title = {Search for the Invisible Decay of Neutrons with KamLAND},
author = {Araki, T. and Enomoto, S. and Furuno, K. and Gando, Y. and Ichimura, K. and Ikeda, H. and Inoue, K. and Kishimoto, Y. and Koga, M. and Koseki, Y. and Maeda, T. and Mitsui, T. and Motoki, M. and Nakajima, K. and Nakamura, K. and Ogawa, H. and Ogawa, M. and Owada, K. and Ricol, J.-S. and Shimizu, I.},
abstractNote = {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 s-shell energy level of {sup 12}C nuclei. Such holes could be created as a result of nucleon decay into invisible modes (inv), e.g., n{yields}3{nu} or nn{yields}2{nu}. 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{yields}inv)>5.8x10{sup 29} years and {tau}(nn{yields}inv)>1.4x10{sup 30} years at 90% C.L. These results represent an improvement of factors of {approx}3 and >10{sup 4} over previous experiments.},
doi = {10.1103/PHYSREVLETT.96.1},
journal = {Physical Review Letters},
number = 10,
volume = 96,
place = {United States},
year = {Fri Mar 17 00:00:00 EST 2006},
month = {Fri Mar 17 00:00:00 EST 2006}
}