Search for proton decay through p->\barν K^+ in a large water Cherenkov detector

Abstract

We present results of a search for proton decays, $p\to \bar{\nu }{K}^{+}$, using data from a 33 kton$\cdot$year exposure of the Super-Kamiokande detector. Two decay modes of the kaon, $K^{+}\to {\mu }^{+}{\nu }_{\mu }$ and $K^{+}\to {\pi }^{+}{\pi }^0$, were studied. The data were consistent with the background expected from atmospheric neutrinos; therefore a lower limit on the partial lifetime of the proton $\tau /B(p\to \bar{\nu }{K}^{+})$ was found to be $6.7\times 10^{32}$ years at 90% confidence level.

5 pages, 5 eps figures, submitted to PRL

References in corpus (4)

• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Nucleon Decay in the Minimal Supersymmetric $SU(5)$ Grand Unification
• Search for Proton Decay via p -> e+ pi0 in a Large Water Cherenkov Detector
• Suggested new modes in supersymmetric proton decay

Cited by in corpus (66)

• Neutrino Physics with JUNO
• The T2K Experiment
• Not Even Decoupling Can Save Minimal Supersymmetric SU(5)
• The next-generation liquid-scintillator neutrino observatory LENA
• What is the Discrete Gauge Symmetry of the MSSM?
• Search for Proton Decay via $p\to \nu K^{+}$ using 260 kiloton$\cdot$year data of Super-Kamiokande
• The Minimal Model for Dark Matter and Unification
• LUNA: a Laboratory for Underground Nuclear Astrophysics
• Displaced Supersymmetry
• Neutralino Proton Cross Sections In Supergravity Models
• WMAPing the Universe: Supersymmetry, Dark Matter, Dark Energy, Proton Decay and Collider Physics
• Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I
• A test of tau neutrino interactions with atmospheric neutrinos and K2K
• Nucleon Decay Searches with large Liquid Argon TPC Detectors at Shallow Depths: atmospheric neutrinos and cosmogenic backgrounds
• Underground Neutrino Detectors for Particle and Astroparticle Science: the Giant Liquid Argon Charge Imaging ExpeRiment (GLACIER)
• Neutralino Dark Matter, b-tau Yukawa Unification and Non-Universal Sfermion Masses
• Proton Decay in a Consistent Supersymmetric SU(5) GUT Model
• Fermion mixings vs d=6 proton decay
• High-speed charge-to-time converter ASIC for the Super-Kamiokande detector
• Holographic evolution of gauge couplings
• Proton Decay Signatures of Orbifold GUTs
• Proton Decay in a Minimal SUSY SO(10) Model for Neutrino Mixings
• Inclusive Nucleon Decay Searches as a Frontier of Baryon Number Violation
• Late decaying axino as CDM and its lifetime bound
• Flipping SU(5) out of Trouble
• The New Minimal Supersymmetric GUT : Spectra, RG analysis and Fermion Fits
• Neutrino Masses and Lepton Flavour Violation in Thick Brane Scenarios
• Characterization of a commercially available large area, high detection efficiency single-photon avalanche diode
• Search for the proton decay p->K+antineutrino in the large liquid scintillator low energy neutrino astronomy detector LENA
• Signatures of Nucleon Disappearance in Large Underground Detectors
• Minimalistic Neutrino Mass Model
• A Black Hole Conjecture and Rare Decays in Theories with Low Scale Gravity
• Supersymmetric 3-3-1 model with right-handed neutrinos
• Gauge coupling unification, the GUT scale, and magic fields
• Neutral-current background induced by atmospheric neutrinos at large liquid-scintillator detectors: I. model predictions
• Searching for the Standard Model in the String Landscape : SUSY GUTs
• Low Energy Neutrino Physics after SNO and KamLAND
• Gauge Coupling Unification in GUT with Anomalous U(1) Symmetry
• A search for evidence of solar rotation in Super-Kamiokande solar neutrino dataset
• Hypercharge and baryon minus lepton number in E6
• Search for the proton decay mode $p\to \overline{\nu }{K}^{+}$ with KamLAND
• Product-Group Unification in Type IIB String Thoery
• Upper Bound of Proton Lifetime in Product-Group Unification
• Limitations of anthropic predictions for the cosmological constant $\Lambda$: Cosmic Heat Death of Anthropic Observers
• Transparency of 0.2% GdCl3 Doped Water in a Stainless Steel Test Environment
• Weak and Electromagnetic Nuclear Decay Signatures for Neutrino Reactions in SuperKamiokande
• Proton decay
• Neutralino relic density in supersymmetric GUTs with no-scale boundary conditions above the unification scale
• SU(5)xSU(5) unification revisited
• Orthogonal U(1)'s, Proton Stability and Extra Dimensions
• Proton Decay in Supersymmetric GUT Models
• Grand Unification and Proton Stability Near the Peccei-Quinn Scale
• On suppressing the Higgsino-mediated proton decay in SUSY SO(10) GUT's
• The Fundamental Constants in Physics and their Time Dependence
• Large Quark Rotations, Neutrino mixing and Proton Decay
• Gauge Mediated Proton Decay in a Renormalizable SUSY SO(10) with Realistic Mass Matrices
• Proton Decay in the Semi-Simple Unification
• The Future Evolution of White Dwarf Stars Through Baryon Decay and Time Varying Gravitational Constant
• Testing orbifold models of Supersymmetric Grand Unification
• Spacetime foam at a TeV
• Search for nucleon decay into lepton + K0 final states using Soudan 2
• An SU(5)$\otimes$Z_{13} Grand Unification Model
• Randall-Sundrum and Flipped SU(5)
• Question for SU(5) x SU(5) string unification
• Gauge unification in 5-D SU(5) model with orbifold breaking of GUT symmetry
• Probing Unification With Precision Higgs Physics