Values of the phase space factors for double beta decay

Journal Article · Wed Oct 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4934913· OSTI ID:22492676

Stoica, Sabin; Mirea, Mihai ^[1]

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1. Horia Hulubei Foundation, 407, Atomistilor street, P.O. Box MG12, 077125 Magurele (Romania)

We report an up-date list of the experimentally most interesting phase space factors for double beta decay (DBD). The electron/positron wave functions are obtained by solving the Dirac equations with a Coulomb potential derived from a realistic proton density distribution in nucleus and with inclusion of the finite nuclear size (FNS) and electron screening (ES) effects. We build up new numerical routines which allow us a good control of the accuracy of calculations. We found several notable differences as compared with previous results reported in literature and possible sources of these discrepancies are discussed.

• OSTI ID: 22492676
• Journal Information: AIP Conference Proceedings, Vol. 1686, Issue 1; Conference: MEDEX'15: Workshop on calculation of double-beta-decay matrix elements, Prague (Czech Republic), 9-12 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
COULOMB FIELD
DIRAC EQUATION
DOUBLE BETA DECAY
ELECTRONS
NUCLEI
PHASE SPACE
POSITRONS
PROTON DENSITY
SCREENING
WAVE FUNCTIONS