The Decay Data Evaluation Project (DDEP) and the JEFF-3.3 radioactive decay data library: Combining international collaborative efforts on evaluated decay data

Cm - Comments on evaluation of decay data

Table 1. Experimental values of the Cm half-life (in years). Reference Author(s) Value Measurement method 1954Fr19 Friedman et al. 17.9 (5) α-activity relative to Cm 1954St33 Stevens et al. 19.2 (6) α-activity relative to Cm 1961Cao1 Carnall et al. 17.59 (6) Specific activity 1968Be26 Bentley 18.099 (32) a 2π α-counting 1972Ke29 Kerrigan and Dorsett 18.13 (4) Calorimetry 1982Po14 Polyukhov et a...

International Evaluation Co-operation Volume 25: Assessment of Fission Product Decay Data for Decay Heat Calculations

The OECD is a unique forum where the governments of 30 democracies work together to address the economic, social and environmental challenges of globalisation. The OECD is also at the forefront of efforts to understand and to help governments respond to new developments and concerns, such as corporate governance, the information economy and the challenges of an ageing population. The Organisati...

Nuclear matrix elements of ββ decay from β-decay data

The evaluation of the nuclear matrix elements (NME) of the twoneutrino double beta (2νββ) decay and neutrinoless double beta (0νββ) decay using the proton-neutron quasiparticle random-phase approximation (pnQRPA) is addressed. In particular, the extraction of a proper value of the proton-neutron particle-particle interaction parameter, gpp, of this theory is analyzed in detail. Evidence is show...

Column: Factors Affecting Data Decay

Extracting |Vub | Using the Radiative Decay Data

In this talk I review recent progress made in extracting | Vub |, within a systematic expansion, from the cut electron energy and hadronic mass spectra of inclusive B meson decays utilizing the data from radiative decays. It is shown that an extraction is possible without modeling the B meson structure function. I discuss the issues involving the assumptions of local duality in various extracti...