Double Beta (ββ) Decay Data

Adopted values are based on experimentally-observed double beta (ββ) decay transitions in:

⁴⁸Ca, ⁷⁶Ge, ⁸²Se, ⁹⁶Zr, ¹⁰⁰Mo, ¹¹⁶Cd, ^128,130Te, ¹³⁶Xe, ¹³⁰Ba, ¹⁵⁰Nd and ²³⁸U

The latest evaluated values are from 2025, and supersede those produced in 2013 and 2006.

Additional information on the 2013 values may be found in:

• the ND2013 Conference Proceedings
• BNL-99822-2013-CP

Additional information on the 2006 values may be found in:

• BNL-91299-2010