An Effective Method to Accurately Calculate the Phase Space Factors for Decay

Table 1

to ground states PSF expressed in yr⁻¹  ×  10¹⁵ and to ground states expressed in yr⁻¹  ×  10²⁰. Results are calculated with the optimal “screening factor” for -PSF, , and compared to those of [14] for and [13] for . Second and third columns display the effective screened charge, , of the daughter nucleus and the energy of the decay, .

		[MeV]		[14]			[13]
Ca	20.79	4.272	24.55	24.83	1.1	1480.46	1553.6	4.7
Ge	32.13	2.039	2.28	2.37	3.8	4.51	4.65	2.9
Se	34.02	2.995	9.96	10.18	2.1	150.31	157.3	4.4
Zr	39.69	3.35	20.45	20.62	0.8	642.0	674.4	4.8
Mo	41.58	3.034	15.74	15.95	1.3	310.6	323.1	3.9
Pd	45.36	2.018	4.66	4.83	3.5	12.78	13.25	3.6
Cd	47.25	2.814	16.57	16.73	1.0	258.78	268.8	3.7
Sn	49.14	2.289	8.87	9.06	2.1	51.45	50.4	2.1
Te	51.03	2.527	14.10	14.25	1.0	142.73	144.2	1.0
Xe	52.92	2.458	14.49	14.62	0.9	133.73	133.2	0.4
Nd	58.59	3.371	66.00	63.16	4.5	3467.53	3539.7	2.0