Isospin-symmetry-breaking corrections to superallowed Fermi {beta} decay: Radial excitations

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.064319· OSTI ID:21296584

Miller, G A ^[1]; Schwenk, A ^[2]

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1. Department of Physics, University of Washington, Seattle, Washington 98195-1560 (United States)
2. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)

Based on an exact formalism, we study the effects of isospin-symmetry-breaking interactions on superallowed 0{sup +}{yields}0{sup +} transitions. We calculate the second-order renormalization of the Fermi matrix element due to radial contributions and show that radial excitations neglected in the treatment of Towner and Hardy are significant. These are estimated to decrease the isospin-symmetry-breaking corrections. Our results provide a correction term that can be included in existing approaches.

• OSTI ID: 21296584
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 80, Issue 6; Other Information: DOI: 10.1103/PhysRevC.80.064319; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
CORRECTIONS
EXCITATION
INTERACTIONS
ISOSPIN
MATRIX ELEMENTS
RENORMALIZATION
SYMMETRY BREAKING