scholarly journals Improved lower bounds on partial lifetimes for nucleon decay modes

2019 ◽  
Vol 100 (11) ◽  
Author(s):  
Sudhakantha Girmohanta ◽  
Robert Shrock
Keyword(s):  
Lower Bounds ◽  
Decay Modes ◽  
Nucleon Decay

scholarly journals New limits on nucleon decay modes to neutrinos

1997 ◽  
Vol 411 (3-4) ◽  
pp. 326-329 ◽  
Author(s):  
J-F. Glicenstein
Keyword(s):  
Decay Modes ◽  
Nucleon Decay

THE SEARCH FOR NUCLEON DECAY AT SUPER-KAMIOKANDE

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 855-859 ◽  
Author(s):  
◽  
KENNETH S. GANEZER
Keyword(s):  
Confidence Level ◽  
Atmospheric Neutrino ◽  
Branching Ratio ◽  
Decay Modes ◽  
Nucleon Decay ◽  
Supersymmetric Theories ◽  
Lower Limits

We have analyzed 1144 days of Super-Kamiokande data for 13 of the more than 40 possible nucleon decay modes. We have studied p→e+π0, and twelve other two particle B-L conserving decay modes including those with kaons that are preferred in supersymmetric theories. Most modes are currently free of candidate events. In all cases the number of candidates is consistent with atmospheric neutrino induced backgrounds. We have calculated 90% confidence level single sided lower limits on the lifetime of the neutron and proton (divided by the unknown branching ratio) for the studied modes. All of our lower limits are higher than previous best limits by a factor of 2-10. Our limit for p→e+π0 is now 4.4×1033 years.

Results from the Fréjus experiment for nucleon decay modes into anti-neutrino + meson

1989 ◽  
Vol 313 (3) ◽  
pp. 509-540 ◽  
Author(s):  
Ch. Berger ◽  
M. Fröhlich ◽  
H. Mönch ◽  
R. Nisius ◽  
F. Raupach ◽  
...  
Keyword(s):  
Decay Modes ◽  
Nucleon Decay

scholarly journals Double-beta decay of $$^{130}\hbox {Te}$$ to the first $$0^+$$ excited state of $$^{130}\hbox {Xe}$$ with CUORE-0

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
C. Alduino ◽  
K. Alfonso ◽  
D. R. Artusa ◽  
F. T. Avignone III ◽  
O. Azzolini ◽  
...  
Keyword(s):  
Excited State ◽  
Beta Decay ◽  
Lower Bounds ◽  
Double Beta Decay ◽  
Decay Modes

Abstract We report on a search for double beta decay of $$^{130}\hbox {Te}$$130Te to the first $$0^{+}$$0+ excited state of $$^{130}\hbox {Xe}$$130Xe using a $$9.8\,\hbox {kg}\cdot \hbox {yr}$$9.8kg·yr exposure of $$^{130}\hbox {Te}$$130Te collected with the CUORE-0 experiment. In this work we exploit different topologies of coincident events to search for both the neutrinoless and two-neutrino double beta decay modes. We find no evidence for either mode and place lower bounds on the half-lives: $$T^{0\nu }_{0^+_1}>7.9\cdot 10^{23}\hbox {yr}$$T01+0ν>7.9·1023yr and $$T^{2\nu }_{0^+_1}>2.4\cdot 10^{23}\hbox {yr}$$T01+2ν>2.4·1023yr ($$90\%\,\hbox {CL}$$90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: $$T^{0\nu }_{0^+_1}>1.4\cdot 10^{24}\hbox {yr}$$T01+0ν>1.4·1024yr and $$T^{2\nu }_{0^+_1}>2.5\cdot 10^{23}\hbox {yr}$$T01+2ν>2.5·1023yr ($$90\%\,\hbox {CL}$$90%CL).

Lifetime limits on (B-L)-violating nucleon decay and di-nucleon decay modes from the Fréjus experiment

1991 ◽  
Vol 269 (1-2) ◽  
pp. 227-233 ◽  
Author(s):  
C. Berger ◽  
M. Fröhlich ◽  
H. Mönch ◽  
R. Nisius ◽  
F. Raupach ◽  
...  
Keyword(s):  
Decay Modes ◽  
Nucleon Decay

scholarly journals Results from the Fr�jus experiment on nucleon decay modes with charged leptons

1991 ◽  
Vol 50 (3) ◽  
pp. 385-394 ◽  
Author(s):  
◽  
Ch. Berger ◽  
M. Fr�hlich ◽  
H. M�nch ◽  
R. Nisius ◽  
...  
Keyword(s):  
Decay Modes ◽  
Nucleon Decay ◽  
Charged Leptons
Sign in / Sign up

Export Citation Format

Share Document