Limits on different neutrinoless modes

1
Limits on different neutrinoless modes

• Nasim Fatemi-Ghomi

2
FirstUpdate on half-life of 2nbb

• The result I presented in Manchester meeting was
  before shifting the foil (although I mistakenly
  thought it was after shifting the foil!)
• So now my half-life is 9.36 x 1018 (compare to
  9.61 x1018) before shift. Fortounatly still phase
  I and phase II still have a good agreement (9.42
  and 9.34)
• But I am a bit worry about tof cut because it
  gives slightly different value of half-life each
  time I run the code so this 9.36 can change up
  to 9.39. Is that anyway to avoid this?

3
Limit on 0nbb and 0nbbrc

• To set limit on those two I re-measured
  half-life (normalization factor) for Esumlt2.5 and
  then set limit on 0nbb and 0nbbrc for Esumgt2.5 at
  90 CL
• 0nbb Eff19 Nlt3.33 T1/21.45 x 1022
• 0nbrc Eff11 Nlt3.29 T1/2 1.27 x1022

4
For different majoron modes

• half-life
  majaron modes
• Esumlt2.0 MeV 9.370.27 - 0.25 X1018
  1
• Esumlt1.5 9.31 0.37 - 0.32 X1018
  2,3
• Esumgt2.1 MeV 8.84 0.79 - 0.67 X1018
  7

5
Results

• Eff N Half-life
• M1 14 lt13.99 gt 2.64 x 1021
• M2 12 lt36.19 gt 8.75 x 1020
• M3 10 lt57.54 gt 4.59 x1020
• M7 4.9 lt266.72 gt 4.85 X1019