Search capability for {eta}{yields}{nu}{sub e,{tau}{nu}e,{tau}}decays in cubic-kilometer neutrino detectors

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.117101· OSTI ID:21408010

Fazely, A R; Gunasingha, R M; Imlay, R L; Muhammad, K D; Ter-Antonyan, S V; Xu, X ^[1]

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1. Southern University, Baton Rouge, Louisiana 70813 (United States)

We investigate the discovery potential of cubic-kilometer neutrino observatories such as IceCube to set stringent limits on the forbidden decays {eta}{yields}{nu}{sub e{nu}e} and {eta}{yields}{nu}{sub {tau}{nu}{tau}.} The signatures for these decays are cascade events resulting from the charged-current reactions of {nu}{sub e}, {nu}{sub {tau},} {nu}{sub e}, and {nu}{sub {tau}}on nuclei in such detectors. Background cascade events are mainly due to {nu}{sub e}'s from atmospheric {mu}, K{sup +}, and K{sub S}{sup 0} decays and to a lesser extent from atmospheric {nu}{sub {mu}}neutral-current interactions with nuclei. A direct upper limit for the branching ratio {eta}{yields}{nu}{sub e,{tau}{nu}e,{tau}}of 6.1x10{sup -4} at 90% CL can be achieved.

• OSTI ID: 21408010
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 11; Other Information: DOI: 10.1103/PhysRevD.81.117101; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CHARGED CURRENTS
ELECTRON NEUTRINOS
KAONS NEUTRAL SHORT-LIVED
KAONS PLUS
MUON NEUTRINOS
NEUTRAL-CURRENT INTERACTIONS
NEUTRINO DETECTION
NUCLEI
PARTICLE DECAY
TAU NEUTRINOS
ALGEBRAIC CURRENTS
BOSONS
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DECAY
DETECTION
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY LEPTONS
INTERACTIONS
KAONS
KAONS NEUTRAL
LEPTONS
MASSLESS PARTICLES
MESONS
NEUTRINOS
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
RADIATION DETECTION
STRANGE MESONS
STRANGE PARTICLES